Lighting control

Air conditioning control
Economy-type Added to the Series
Economy-type CPU Units with a more affordable price have been added to the series, although Expansion I/O Units cannot be added.
8-digit Counter, 150-Hz Counter
An 8-digit counter and 8-digit comparator have been added. The maximum count for DC power supply models is 150 Hz.
12 to 24 VDC Line Voltage Operation
Operation is now possible with 12 VDC.
Twin-timer Operation Added
Twin-timer operation allows you to set ON and OFF times separately, greatly simplifying intermittent operation.
Expansion I/O Units have been reduced to half-size (35 mm wide).

Programmable Relay ZEN

V2 Units

Series Configuration

CPU Units
Power supply voltage: 100 to 240 VAC, 12 to 24 VDC, Output: Relay, transistor output
With LCD display, operation buttons, and calendar/clock function

LED type

10 I/O points

20 I/O points

ZEN-10C2@

ZEN-20C2@

This CPU Unit has no LCD, operation buttons, or calendar/clock function.

Standard LCD type

Economy type

Communications type

ZEN-10C1@

ZEN-10C3@

Expansion I/O Units cannot be connected.

ZEN-10C4@

RS-485 communications type.

ZEN-20C1@

ZEN-20C3@

(10 I/O points)

Expansion I/O Units
Only 35-mm wide. 4 input, 4 output points

Power Supply Unit

Same shape and design as ZEN. 24 VDC, 30 W

Support Software

Allows easy programming and operation simulation.

Model Number Structure

Model Number Legend
Note: This model number legend includes combinations that are not available. Please check List of Models for availability.

ZEN-@C@@@-@-V2

3. Input type A: AC input D: DC input 4. Output type R: Relay T: Transistor 5. Supply voltage A: AC power supply D: DC power supply 1. Number of I/O points 10: 6 inputs and 4 outputs (See note.) 20: 12 inputs and 8 outputs 2. Type classifier 1: Standard LCD type with display 2: LED type without display 3: Economy type with display (Expansion I/O Units cannot be connected.) 4: Communications type with display Note: The Communications-type CPU Unit has 6 inputs and 3 outputs.

ZEN-8E1@@

1. Number of I/O points 8: 4 inputs and 4 outputs 2. Unit version classifier E1: Can connect to V2 CPU Units (See note.) 3. Input type A: AC input D: DC input 4. Output type R: Relay T: Transistor
Note: Use a ZEN-8E@@/-4E@ to connect to pre-V1 and V1 CPU Units.
This data sheet is provided as a guideline for selecting products. Be sure to refer to the following user manuals for application precautions and other information required for operation before attempting to use the product. ZEN Operation Manual (Cat. No. Z211) ZEN Communications Manual (Cat. No. Z212) ZEN Support Software Operation Manual (Cat. No. Z184-E1-03) The PDF versions of these manuals can be downloaded from the following website. ZEN Website http://www.zen.omron.co.jp/eng/index.html

Ordering Information

List of Models
CPU Units and Expansion I/O Units
Unit Name No. of I/O points 10 LCD display Yes Power supply voltage 100 to 240 VAC 12 to 24 VDC to 240 VAC 12 to 24 VDC LED type 10 without display (See note 1.) 20 No 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC Economy type (Expansion I/O Units cannot be connected) Yes 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC 6 Inputs Outputs Buttons, calendar, and clock Yes Analog input No Yes Transistors 100 to 240 VAC 12 to 24 VDC Transistors 100 to 240 VAC 12 to 24 VDC Transistors 100 to 240V AC 12 to 24 VDC Transistors 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC 100 to 240 VAC 12 to 24 VDC 3 Relays 8 Relays 4 Relays Yes No Yes No Yes No Yes 8 Relays No Yes 4 Relays No No Yes 8 Relays No Yes Model
100 to 240 VAC 12 to 24 VDC

Relays

ZEN-10C1AR-A-V2 ZEN-10C1DR-D-V2 ZEN-10C1DT-D-V2 ZEN-20C1AR-A-V2 ZEN-20C1DR-D-V2 ZEN-20C1DT-D-V2 ZEN-10C2AR-A-V2 ZEN-10C2DR-D-V2 ZEN-10C2DT-D-V2 ZEN-20C2AR-A-V2 ZEN-20C2DR-D-V2 ZEN-20C2DT-D-V2 ZEN-10C3AR-A-V2 ZEN-10C3DR-D-V2 ZEN-20C3AR-A-V2 ZEN-20C3DR-D-V2 ZEN-10C4AR-A-V2 ZEN-10C4DR-D-V2 ZEN-STARTER01-V2 ZEN-STARTER02-V2 ZEN-8E1AR (See notes 2, 3.) ZEN-8E1DR (See note 2.)
Communica- 9 tions type ZEN Kit Expansion I/O Units
Set containing CPU Unit (ZEN-10C1AR-A-V2), Connecting Cable, ZEN Support Software, and manual. Set containing CPU Unit (ZEN-10C1DR-D-V2), Connecting Cable, ZEN Support Software, and manual. 8 --100 to 240 VAC 12 to 24 VDC to 240 VAC 12 to 24 VDC Transistors 4 Relays ---

ZEN-8E1DT (See note 2.)

System Configuration

Power Supply Unit Battery Unit CPU Unit Expansion I/O Units

Connecting Cable

Memory Cassette
Note: 1. Up to 3 Expansion I/O Units can be connected to any type of CPU Unit except for Economy-type CPU Units. Expansion I/O Units with AC Inputs, however, cannot be connected to CPU Units with DC Power Supplies. 2. The Connecting Cable and Memory Cassette cannot be connected to the ZEN at the same time. 3. Programs cannot be written to LED-type CPU Units (i.e., ZEN-@C2@@-@-V2 models) without the ZEN Support Software or a Memory Cassette.

Specifications

Ratings
Item ZEN-@C@AR-A-V2/ZEN-8E1AR Rated supply voltage Operating voltage range Power consumption 100 to 240 VAC, 50/60 Hz 85 to 264 VAC CPU Units without Expansion I/O Units ZEN-10C1AR-A-V2/ZEN-10C2AR-A-V2/ ZEN-10C3AR-A-VV AC: 5 VA max. 240 V AC: 7 VA max. ZEN-10C4AR-A-VV AC: 6 VA max. 240 V AC: 8 VA max. ZEN-20C@AR-A-VV AC: 7 VA max. 240 V AC: 10 VA max. CPU Units with three Expansion I/O Units ZEN-10C1AR-A-V2/ZEN-10C2AR-A-VV AC: 6 VA max. 240 V AC: 8 VA max. ZEN-10C4AR-A-VV AC: 7 VA max. 240 V AC: 9 VA max. ZEN-20C@AR-A-VV AC: 8 VA max. 240 V AC: 11 VA max. Expansion I/O Units ZEN-8E1AR 100 V AC: 3 VA max. 240 V AC: 4 VA max. Inrush current ZEN-10C@AR-A-V2: 4.5 A max. ZEN-20C@AR-A-V2: 4.5 A max. ZEN-8E1AR: 4 A max. 0 to 55C (25 to 55C for ZEN-@C2@@-@-V2 models) 10% to 90% (with no condensation) No corrosive gases Surface mounting, DIN track mounting (standard (vertical) installation and horizontal installation) (See notes 1 and 2.) Solid-line terminal block (use solid wire or fine-stranded wire) 0.565 to 0.6 Nm (5 to 5.3 in-lb) IP20 (Mounted inside a control panel) Specification ZEN-@C@D@-D-V2/ZEN-8E1D@ 12 to 24 VDC (DC ripple rate: 5% max.) 10.8 to 28.8 VDC CPU Units without Expansion I/O Units ZEN-10C@DR-D-V2 12/24 V DC: 3 W max. (ZEN-10C3DR-D-V2: 2.8 W max.) ZEN-10C@DT-D-V2 12/24 V DC: 2 W max. ZEN-20C@DR-D-V2 12/24 V DC: 4 W max. ZEN-20C@DT-D-V2 12/24 V DC: 2 W max. CPU Units with three Expansion I/O Units ZEN-10C@DR-D-V2 12/24 V DC: 4 W max. ZEN-10C@DT-D-V2 12/24 V DC: 3 W max. ZEN-20C@DR-D-V2 12/24 V DC: 5 W max. ZEN-20C@DT-D-V2 12/24 V DC: 3 W max. Expansion I/O Units ZEN-8E1DR 12/24 V DC: 2 W max.

ZEN-10C@D@-D-V2: 30 A max. ZEN-20C@D@-D-V2: 30 A max. ZEN-8E1DR: 15 A max.
Ambient temperature Ambient humidity Ambient conditions Mounting method Terminal block Terminal screw tightening torque Degree of protection
Ambient storage temperature 20 to 75C (40 to 75C for ZEN-@C2@@-@-V2 models)
Note: 1. Can be mounted to 35-mm DIN Track. 2. Standard (Vertical) installation Horizontal installation

Characteristics

Item Control method I/O control method Programming language Program capacity Max. No. of control I/O points Stored program control Cyclic scan Ladder diagram 96 lines (3 input conditions and 1 output per line) 44 points (See note 1.) CPU Units with 20 I/O points: 12 inputs and 8 outputs Expansion I/O Units: 4 inputs and 4 outputs each, up to 3 Units. 12 characters 4 lines, with backlight Internal EEPROM, Memory Cassette (optional) Internal holding bit status, holding timer/counter present values, calendar and clock (year, month, day of month, day of week, time) Super capacitor backup time: 2 days min. (25C) Life of optional battery: 10 years min. (25C) Accuracy: 15 s/month (at 25C) 0.01 s unit: 0.05% 10 ms max. (rate for set value) min/s unit: 0.05% 1 s max. (rate for set value) h/min unit: 0.05% 1 min max. (rate for set value) 150 Hz: 8-Digit counter (F) set to high-speed operations (CPU Units with DC power supplies only) (The counting speed may be less than 150 Hz depending on the cycle time of the program. See page 21.) 20 M (at 500 VDC) min.: Between power supply terminals and all output terminals. Between terminals of different output circuits. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. Reinforced insulation Between power supply or input terminals and output terminals. Between terminals of different output circuits. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. No separation Between power supply and input terminals of the same unit. Between power supply terminals of CPU Unit and computer connector, Battery Unit connector, or all Expansion Unit connectors (all interfaces are live parts). 2,300 VAC, 50/60 Hz for 1 min (leakage current 1 mA max.): Between power supply terminals and all output terminals. Between terminals of different output circuit. Between all terminals of CPU Unit and all terminals of Expansion I/O Unit. Conforms to IEC60068-2-6, 5 to 9 Hz with 3.5-mm single amplitude, 9 to 150 Hz acceleration 9.8 m/s2, 10 sweeps each in X, Y, and Z directions (1 octave/min) Conforms to IEC60068-2-27, 147 m/s2, 3 times each in X, Y, and Z directions. CPU Unit with 10 I/O points: Approx. 300 g max. CPU Unit with 20 I/O points: Approx. 350 g max. Expansion I/O Unit: Approx. 120 g max. Specification
LCD display (See note 2.) User program backup Power interruption hold
Operation buttons (See note 2.) 8 (4 cursor buttons and 4 operation buttons)
Calendar and clock function (See note 2.) Timer accuracy

100 to 240 VAC N L

Specifications 100 to 240 VAC +10%, 15%, 50/60 Hz

Circuit drawing

IN 330 k 300 k IN 51 k Internal circuit
Note: Can be selected using the filter settings.
DC Inputs: I0 to I3 for Units with 10 I/O points, I0 to I9 for Units with 20 I/O Points (Not Isolated)
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time OFF response time Note: Can be selected using the input filter settings, except when I0 is being used for an 8-digit counter with a high-speed input. 5.3 k 4.5 mA (typ.)/24 VDC 8 VDC min. 5 VDC max. 15 ms or 50 ms (See note.)

12 to 24 VDC

Specifications 12 to 24 VDC +20%, 10%
IN 5.1 k 1.8 k IN Internal circuit COM
DC Inputs: I4 and I5 for Units with 10 I/O points, Ia and Ib for Units with 20 I/O Points (Not Isolated)
Item DC Inputs Input voltage Input impedance PNP: NPN: Input current ON voltage OFF voltage ON response time OFF response time Analog Inputs Input range External input impedance Resolution Accuracy 0 to 10 V 100 k min. 0.1 V (1/100 FS) PNP: NPN: 8 VDC min. 3 VDC max. 15 ms or 50 ms (See note.) Specifications 12 to 24 VDC +20%, 10% 5.5 k/14 VDC min. 100 k/14 VDC max. 5.2 k
Internal circuit Internal circuit
4.3 mA (typ.)/24 VDC 4.6 mA (typ.)/24 VDC
Analog voltage output device +

150 k IN 47 k 220 k

COM 12 to 24 VDC
1.5% FS (at ambient operating temperature within rated range)
AD conversion data 0 to 10.5 V (in increments of 0.1 V) Note: Can be selected using the input filter settings.
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time Off response time 680 k 0.15 mA/100 VAC, 0.35 mA/240 VAC 80 VAC min. 25 VAC max. 50 ms or 70 ms at 100 VAC (See note.) 100 ms or 120 ms at 240 VAC (See note.)

100 to 240 VAC

N L IN IN

330 k 300 k 51 k

Note: Can be selected using the input filter settings.
DC Inputs (ZEN-8E1DR: Not Isolated, ZEN-8E1DT: Photocoupler Isolated)
Item Input voltage Input impedance Input current ON voltage OFF voltage ON response time OFF response time Note: 1. Can be selected using the input filter settings. 2. The ZEN-8E1DT has no +/- terminals. There is no need to supply power. 6.5 k 3.7 mA (typ.)/24 VDC 8 VDC min. 5 VDC max. 15 ms or 50 ms (See note 1.)

IN IN COM

6.2 k (See note 2.)

Internal circuit

Output Specifications (CPU Units and Expansion I/O Units)

Units with Relay Outputs

Item Specifications Circuit drawing Maximum switching capacity 250 VAC/8 A (resistive load: cos = 1) 24 VDC/5 A (resistive load) Use the following values for the total of all outputs. CPU Units with 10 I/O points: 20 A max. (15 A max. for Communications-type CPU Units) CPU Units with 20 I/O points: 40 A max. Expansion I/O Units: 20 A max. Minimum switching capacity 5 VDC/10 mA (resistive load) Relay life Electrical Mechanical ON response time OFF response time Resistive load: 50,000 times (cos = 1) Inductive load: 50,000 times (cos = 0.4) 10 million times 15 ms max. 5 ms max.

L Q5/Q7

Q0 to Q3/OUT0 to OUT3 L
Q4/Q6 L COM Models with 20 I/O points only
The life under the worst conditions, of the output contacts used in ZEN relay outputs is given in the above table. Guidelines for the normal life of the relays are shown in the diagram on the right. Note: The switching capacity, switching durability, and applicable load area when actually using the relay depend on the type of load, environmental conditions, and switching conditions. Therefore, be sure to confirm these conditions for the actual machine before use.
Life-test Curve (Reference Value)

Usage: 360 times/hour

Life ( 103) 1,300 250-VAC resistive load 24-VDC resistive load/ 250-VAC inductive load 24-VDC inductive load (t = 7 ms)

10 Contact current (A)

Units with Transistor Outputs
Item Specifications Circuit drawing Each circuit is configured with an independent common circuit
Maximum switching capacity 24 VDC +20%, 500 mA

Q0 to Q3/OUT0 to OUT3

Leakage current

0.1 mA max.

28.8 VDC max.

Residual voltage

1.5 V max.

Internal circuit COM +

28.8 VDC max. Models with 20 I/O points only

ON response time

1 ms max.

OFF response time

Connections

Input Connections

Units with AC Power Supply
Note: 1. Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time. 2. The input circuit commons for CPU Units with AC power supply are internally connected to the N terminal of the power supply circuit. Wire the L terminal to the power supply of the input device. 3. The input circuit commons for Expansion I/O Units with AC power supply are internally connected to the N terminal of the power supply circuit. Wire the L terminal to the power supply of the input device.

CPU Units with 10 I/O Points and Expansion I/O Units
100 to 240 VAC, 50/60 Hz L N Circuit protector

Input device

IN0 IN1 IN2 IN3
CPU Unit with 10 I/O points
ZEN-8E1AR Expansion I/O Unit (AC input type)
CPU Units with 20 I/O Points and Expansion I/O Units
100 to 240 VAC, 50/60 Hz L Circuit protector N Input device
CPU Unit with 20 I/O points
Connecting Expansion I/O Units with DC Inputs
100 to 240 VAC, 50/60 Hz L Circuit protector Input device

L N NC I0 I1 I2 I3 I4 I5

DC power supply

COM IN0 IN1 IN2 IN3

ZEN-8E1DR Expansion I/O Unit (DC inputs and relay outputs)
ZEN-8E1DT Expansion I/O Unit (DC inputs and transistor outputs)
Note: When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC power supply, the burst noise immunity will be 1 kV (IEC 61000-4-4).
Units with DC Power Supply
Note: 1. Be sure to connect the COM terminal before turning ON the power supply. If the COM terminal is disconnected, or if the wiring is changed after turning ON the power supply, a malfunction may occur. 2. Apply the power supply voltage through a relay or switch in such a way that the voltage reaches the rated value within 4 s. If the voltage is applied gradually, the power may not be reset or unstable output operations may result.
CPU Units with 10 I/O Points
For Connections to Negative () Common (PNP Connection)
For Connecting Analog Input Devices to Input Terminals I4 and I5

COM I 0

Note: When connecting an analog input device, always connect the negative side to the COM terminal.
For Connections to Positive (+) Common (NPN Connection)

Input device +

COM I0

I1 I2 I3 I4 I5

Note: When connected to the positive (+) common, I4 and I5 cannot be used as analog inputs.
CPU Units with 20 I/O Points
For Connections to a Negative Common (PNP Connection)
COM I0 I1 I2 I3 I4 I5 NC I6 I7 I8 I9 Ia Ib
For Connecting Analog Input Devices to Input Terminals Ia and Ib

I6 I 7

CPU Units with 20 I/O points
Note: When connected to the positive (+) common, Ia and Ib cannot be used as analog inputs.
Note: 1. Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time. 2. ZEN-8E1AR Expansion I/O Units with AC inputs cannot be connected to CPU Units with DC power supply. 3. The input circuit commons for ZEN-8E1DR Expansion I/O Units with relay outputs are each internally connected to one side of the power supply circuit (COM terminal). 4. ZEN-8E1DT Expansion I/O Units with transistor outputs do not need to be connected to a power supply.
For Connections to Negative () Common

COM I0 I1 I2 I3 I4 I5

NC COM IN0 IN1 IN2 IN3

COM IN0 IN1 IN2 IN3

ZEN-8E1DR Expansion I/O Unit (DC input, relay output)
ZEN-8E1DT Expansion I/O Unit (DC input, transistor output)
For Connections to Positive (+) Common

Output Connections

All four relay output circuits in both CPU Units with 10 I/O points and Expansion I/O Units have independent contacts. CPU Units with 20 I/O points have 4 independent contacts (Q0 to Q3) and the remaining four (Q4 to Q7) have 2 points/common. There are no restrictions for polarity.
Standard LCD-type CPU Units, LED-type CPU Units, and Economy-type CPU Units
CPU Unit with 10 I/O Points CPU Unit with 20 I/O Points
Communications-type CPU Units
Communications-type CPU Unit

Expansion I/O Unit

B (+) A ()

OUT 2 OUT OUT 0 1

Load Load

RS-485

For CPU Units with 10 I/O points and Expansion I/O Units, all 4 outputs in the transistor output circuits have independent circuits. The terminals of output have polarity given on the terminal block, but no problem will result from reversing the connection positions of the power supply and load. For CPU Units with 20 I/O points, outputs Q0 to Q3 in the transistor output circuits have independent circuits and outputs Q4 to Q7 have 2 points per common. The terminals of output Q0 to Q3 have polarity given on the terminal block, but no problem will result from reversing the connection positions of the power supply and load. Note: Do not exceed a cable length of 10 m when connecting transistor outputs.

Standard LCD-type CPU Units and LED-type CPU Units without Display
CPU Unit with 10 I/O Points
+ Q0 + Q1 + Q2 + Q3 + Q0 + Q1 + Q2
CPU Unit with 20 I/O Points

+ Q3 + Q4 Q5 + Q6 Q7

Q0 to Q3

Q0 to Q3 Load

Expansion I/O Unit + + OUT2 OUT3 + OUT0 Load Load OUT1 Load Load

OUT0 to OUT3 Load

Nomenclature
Standard LCD-type, Economy-type, and Communications-type CPU Units (Except for ZEN-@C2@@-@-V2 Models)

Left side Front

Power supply Input terminals terminals

Right side

Display screen

Operation buttons

Display Screen
Output terminals (See note 1.) Battery Unit connector (Remove the seal to connect the Battery Unit.) ZEN Support Software connector (also used for Memory Cassette.)
Expansion Unit connector cover (See note 2.) Do not remove this cover until connecting an Expansion Unit.

RUN ERR

Icon Meanings
Icon RUN Meaning Display while in RUN mode. Indicates an error. Displayed when there is a higher-level menu or ladder program line than the one currently displayed. Displayed when there is a lower-level menu or ladder program line than the one currently displayed. Displayed when a password had been set.

Left side

Power supply terminals

Input terminals

20C1AR-A-V2
Output terminals Battery Unit connector (Remove the seal to connect the Battery Unit.) ZEN Support Software connector (also used for Memory Cassette.)
Note: 1. With Communications-type CPU Units, the Q3 terminal is used as the RS-485 terminal. For details, refer to Output Connections on page 15. 2. Economy-type CPU Units are not provided with an Expansion Unit connector. Do not remove the cover.

Operation Buttons

DEL Button ALT Button
Operation Button Names and Operations
Button Menus Function Writing ladder program Setting parameters Button input bit (See page 24.) B6 ON

Cursor Buttons

Deletes inputs, outputs, connection --lines, and blank lines. Switches between normally open --and normally closed conditions. Changes to connection line write mode. Inserts a line.

A: Can read settings during operation. D: Cannot read settings during operation.
Note: 1. When L0 or L1 are selected to disable the display function screen, the display function screen will not be displayed automatically. Use operation buttons to move to the display function screen. 2. When L2 or L3 are selected, the ZEN switches to the display function screen if the display function is enabled and the specified data is displayed. The Main Screen will no longer be displayed. To display the Main Screen, change the CPU Unit to STOP mode.
9. Analog Comparator Operation
Example 1 (When comparison shows analog input 1 5.2 V)

Setting 10.5 10.0

Example 2 (When comparison shows analog input 1 is analog input 2)
Converted value 10.0 Analog input 1

5.2 Analog input 2

00.0 0.0 Analog comparator bit
10.5 V 10.0 V Input voltage
00.0 Analog comparator bit
10. Timer/Counter Comparator Operation
Example 1 (When comparison setting is holding timer #min 34 s)
Setting 12 min 34 s C2 present value 0 Comparator bit Comparator bit #0 present value
Example 2 (When comparison setting is counter 1 (C1) counter 2 (C2))

C1 present value

11. 8-digit Counter Comparator Operation
When comparison setting is 8-digit counter F0 12000000
12000000 F0 present value
0 8-digit counter comparator bit
12. Specifications for Button Input Bits (Only for Standard LCD-type, Economy-type, and
The operation buttons are used to perform operations for input bits. They are useful when checking program operations or forcefully resetting holding timers or counters.

Button input 7 (B7)

Button input 6 (B6)
Button input 5 (B5) Button input 4 (B4) Button input 3 (B3) Button input 2 (B2)

Button input 1 (B1)

Button input 0 (B0)
Password Function (Only for Standard LCD-type, Economy-type, and Communications-type CPU Units)
The ZEN has a password function to prevent incorrect manipulation of ladder programs or settings data by other operators. When the password (0000 to 9999) is set, the following operations will not be possible unless the password is input correctly. Editing ladder program Program all clear Monitoring ladder programs Changing/clearing password Changing backlight OFF time Setting input filter Setting RS-485 communications
ZEN Support Software Functions
Note: Always use ZEN-SOFT01-V4 as the Support Software for the V2 CPU Unit.

Creating Ladder Programs

ZEN ladder programs can be created with ease.
Simulating Ladder Programs
The simulation function makes it possible to check whether correct operation is performed without connecting to the ZEN.
Note: The Edit Input Dialog Box is displayed when an input bit is inserted. Timer, counter, and other parameter settings are also set in the Edit Input Dialog Box. They cannot be set in the Edit Output Dialog Box.

Executed sequentially from the bus bar.

OMRON SYSMAC PLCs

IQII4 T0 [ Q1 TT0 [ Q2 END I1 I2 [ Q0

I2 [ Q0

ZEN executes the entire ladder program (up to 96 lines) from the first to last line at one time. Each row is executed in order from left to right starting from the left bus bar.
PLCs execute ladder programs one rung (circuit) at a time, starting with the top rung and executing it in order from the left. When the END instruction is reached, the program is executed again from the first rung.
The ON/OFF status produced by an output contact will not be used as the input contact status in the same cycle, but it can be used in the next cycle.
IM[ Q0 [ M0 I0 M0 Qcycle 1 cycle
When the following instructions are executed, Q0 turns ON/OFF at the same time as the other bits.

IM[ Q0 [ M0 I0 M0 Q0

Precautions

!WARNING

Serious human hazard may occasionally occur due to ignition or rupture of the lithium battery used in the Battery Unit. Do not short the battery terminals or charge, disassemble, deform under pressure, or incinerate the battery. Never use any battery that has been dropped on the floor or otherwise subjected to excessive shock.
System Startup and Program Changes
Check the user program for proper execution before actually running it on the Unit. Disconnect the output lines from the system before testing operation in any system in which incorrect operation can result in injury or equipment damage. Confirm safety before attempting any of the following operations. Changing the operating mode (RUN/STOP). Using the button switches. Changing bit status or parameter settings. Double-check all wiring before turning ON the power supply. Refer to Cycle Time Calculation Method on page 21 and confirm that the increase in the cycle time will not affect operation. If the cycle time is too long, it may become impossible to read input signals accurately. The increase in the cycle time will be particularly noticeable when set values are written in RUN mode for a CPU Unit with communications (ZEN-10C4@R-@-V2).

!CAUTION

Electric shock, fire, or malfunction may occur. Do not disassemble, modify, or repair the ZEN or touch any of the internal parts. Electric shock may occur. Never touch the I/O terminals, computer connector, or Battery Unit connector while power is being supplied. Electric shock may occur. Do not remove the Expansion Unit connector cover unless an Expansion I/O Unit will be permanently installed. Fire may occasionally occur. Tighten the terminal screws to a torque of 0.565 to 0.6 Nm (5 to 5.3 in-lb).

Maintenance

When replacing a CPU Unit, transfer to the new Unit and confirm all settings for clock data, internal holding bits, holding timers, and counters before starting operation again.
Connecting Expansion I/O Units
Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time. When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC power supply, the burst noise immunity will be 1 kV (IEC 61000-4-4). Expansion I/O Units with AC inputs (ZEN-8E1AR) cannot be connected to a CPU Unit with a DC power supply.
Transportation and Storage
Use special packing boxes when transporting the ZEN and do not subject it to excessive shock or vibration or drop it during shipment. Store the ZEN within the rated ranges. If the ZEN has been stored at 10C or lower, allow it to stand at room temperature for three hours or longer before turning ON the power supply.
Precautions for Correct Use

Installation Environment

Do not install the ZEN in the following locations. Locations subject to radical changes in temperature Locations with high humidity subject to condensation Locations subject to excessive dust or dirt Locations subject to corrosive gas Locations subject to direct sunlight Do not install the ZEN in locations subject to shock or vibration. Extended use in such locations may cause damage from stress. In environments subject to static electricity (e.g., close to pipes conveying forming materials, powders, or fluid materials), separate the ZEN as far as possible from the source of static electricity. The ZEN is neither waterproof nor oil-proof. Do not use it in locations subject to water or oil. Use the ZEN within the allowable power supply voltage range. Be particularly careful in locations with bad power supply conditions, e.g., large fluctuations in the power supply voltage. Do not install the ZEN in locations subject to excessive noise, which may cause the ZEN to fail. Take appropriate and sufficient countermeasures when installing systems in the following locations: Locations subject to strong electromagnetic fields Locations subject to possible exposure to radioactivity

Power Supply

Certain Precautions on Specifications and Use
1. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyers application or use of the Product. At Buyers request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyers application, product or system. Buyer shall take application responsibility in all cases but the following is a non-exhaustive list of applications for which particular attention must be given: (i) Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document. (ii) Use in consumer products or any use in significant quantities. (iii) Energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. (iv) Systems, machines and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to this Product. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO 2. 3. ADDRESS THE RISKS, AND THAT THE OMRONS PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the users programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omrons test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omrons Warranty and Limitations of Liability. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omrons representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions.

ZEN-SOFT01-V4

Cat.No.Z184-E1-03

Z184-03.book Page iii Thursday, September 15, 2005 4:26 PM
ZEN-SOFT01-V4 ZEN Support Software

Operation Manual

Printed in January 2006
Z184-03.book Page iv Thursday, September 15, 2005 4:26 PM

Preface

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. This manual describes the functions, performance, and application methods needed for optimum use of the ZEN Programmable Relay. The ZEN is a compact and highly functional controller that can be used to easily automate small-scale applications. Its development has drawn on OMRON's advanced control technology and expertise in manufacturing various types of controllers. Before using the ZEN, read this manual carefully so that you can use the ZEN correctly. Keep the manual close at hand so that you can refer to it whenever necessary.

Notice

(1) All rights reserved. No part of this manual may be reprinted or copied without the prior written permission of OMRON. (2) The specifications and other information in this manual are subject to change without notice for product improvement. (3) Considerable care has been taken in the preparation of this manual; however, OMRON assumes no responsibility or liability for any errors or inaccuracies that may appear. In the event that a problem is discovered, please contact one of the OMRON offices or agents listed at the end of the manual, and provide the catalog number shown on the cover of the manual.
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Warranty and Application Considerations
Read and Understand this Manual Please read and understand this manual before using the product. Please consult your OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability
Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
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Application Considerations
Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual. Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

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Disclaimers

Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
Copyright and Copy Permission
Copyright and Copy Permission COPYRIGHT AND COPY PERMISSION This document shall not be copied for sales or promotions without permission. This document is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this document in any manner, for any other purpose. If copying or transmitting this document to another, please copy or transmit it in its entirety.
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OMRON Product References

All OMRON products are capitalized in this manual. The word Unit is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

OMRON, 2003

A5 Prelim.fm Page ix Thursday, September 15, 2005 5:25 PM
Software License Agreement
Note Read this Agreement prior to using the software. This software (hereafter called the Software) shall be used only after the user (hereafter called the User and referring to either individuals or companies) has agreed to the following conditions for usage (hereafter called the Agreement). This Agreement is a legal contract that is formed between the User and OMRON Corporation (hereafter called OMRON). The act of installing, copying, or using the Software shall imply that the User agrees to the items of this Agreement. In the event that the User does not agree to the items of this Agreement, OMRON shall not grant the right for the User to install, copy, or use the Software. 1. In this Agreement, Software means the computer program and related documentation contained in the package of this program. Copyright of the Software remains the sole property of OMRON or the third party who has licensed the Software to OMRON and shall not be assigned to the User under this Agreement. OMRON grants the User a non-exclusive, non-transferable, and limited license to use the Software on one or more computer(s) owned by the User. The User shall not sub-license, assign, nor lease the Software to any third party without prior written consent of OMRON. The User may copy the Software for backup purposes only. The User may not decompile, reverse engineer, nor otherwise attempt to discern the source code of the Software. The user acknowledges that the software is provided on an as is basis and there are no warranties, expressed or implied, including but not limited to, warranty of merchantability or fitness for particular purpose. In no event, will OMRON be liable for any direct, indirect, incidental, special, or consequential damages arising out of this agreement or use of the software. If the User breaches this Agreement, OMRON may terminate this Agreement upon notice to the User. In that event, the User shall return the Software and all copies thereof.

Note On the ZEN Support Software displays, bits in ZEN memory are called relays, program input bits are called contacts, and program output bits are called coils. !WARNING Failure to read and understand the information provided in this manual may
result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.
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Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

Note 1,2,3. Precaution

Indicates information of particular interest for efficient and convenient operation of the product. 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
Indicates precautionary information that should be heeded in using the ZEN.
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TABLE OF CONTENTS

Warranty and Application Considerations. v OMRON Product References.viii Software License Agreement.ix Revision History. x About this Manual.xi Visual Aids.xii PRECAUTIONS.xv
3 General Precautions. xvi Safety Precautions. xvi Application Precautions. xvii
SECTION 1 Installation and Startup. 1
1-1 1-2 1-3 1-4 Before Operation. Installing and Uninstalling the ZEN Support Software. Starting and Quitting. Screen Configuration. 5 6
SECTION 2 Creating Ladder Programs.11
2-1 2-2 2-3 2-4 2-5 2-6 2-7 Circuit Diagrams and Ladder Programs. Inputting Ladder Programs. Checking Ladder Programs. Editing Ladder Programs. Editing Comments. Saving Ladder Programs. Printing Ladder Programs. 37
SECTION 3 Transferring and Monitoring Programs.41
3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 Connecting the ZEN and Communications Settings. Connecting Online. Transferring Programs to the ZEN. Transferring Programs from the ZEN. Verifying Programs with the ZEN. Operating and Stopping the ZEN. Monitoring Programs. Setting and Resetting Inputs. Clearing Errors. 52
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SECTION 4 System Settings. 53
4-1 4-2 4-3 4-4 4-5 ZEN Settings. 54 Setting a Password. 57 Protecting Programs. 58 Clearing the ZEN Memory. 59 RS-485 Communications Settings. 60
SECTION 5 Simulation Function. 61
5-1 5-2 5-3 5-4 Starting and Stopping the Simulation Function. 62 ZEN Image Display. 63 Present Value List Display. 65 Clock Display. 66
SECTION 6 Troubleshooting. 67
6-1 6-2 6-3 Online Errors and Warnings. 68 Program Check Errors and Warnings. 69 Protect Setting and Clearing Errors. 70

Appendices

A B Shortcut Keys and Hot Keys. 71 Support Software Version Upgrades. 73
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PRECAUTIONS

This section provides general precautions for using the ZEN Support Software for the ZEN Programmable Relays. The information contained in this section is important for the safe and reliable application of the ZEN. You must read this section and understand the information contained before attempting to set up or operate a ZEN.
General Precautions. xvi Safety Precautions. xvi Application Precautions. xvii
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General Precautions

The user must operate the product according to the performance specifications described in the operation manual. Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative. Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms. This manual provides information for installing and operating OMRON Motion Control Units. Be sure to read this manual before operation and keep this manual close at hand for reference during operation.
!WARNING It is extremely important that a PC and all PC Units be used for
the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PC system to the above mentioned applications.

Safety Precautions

Confirm safety before attempting any of the following operations. Transferring the user program Changing the user program Changing the operating mode of the ZEN Turning relays ON or OFF Always perform a program check on any program after writing it and before transferring it to the ZEN. Also confirm the operation of the program completely before using it for actual system operation. Always disconnect the output circuits before performing operating tests on systems in which the loads connected to the output circuits can have a serious effect on human life or property if incorrect operation occurs.
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Application Precautions

Observe the following precautions when using the ZEN Support Software. Observe the following precautions before starting the ZEN Support Software Close all software programs not related to the ZEN Support Software. It is particularly important to close all programs that start periodically or intermittently, such as screen savers, virus checkers, email and other communications programs, and schedulers. Do not share hard disks, printers, or other devices with other network computers while running the ZEN Support Software. Some notebook computers set the RS-232C port to modem or infrared application by default. Change the settings according to the operating instructions for your computer so that the RS-232C port can be used as a normal serial communications port. Some notebook computers set the RS-232C port to not supply power (5 V) to the port to save energy by default. Change the settings according to the operating instructions for your computer to provide power to the port. (There are Windows settings and also possibly settings for computerspecific utilities or BIOS settings to save power.) Do not turn OFF the power supply to the ZEN or disconnect the connecting cable while the ZEN Support Software is online with the ZEN. The computer may malfunction.

The Setup Screen will be displayed. Check the details, enter the required information, and click the Next Button.
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When the setup operation has been completed, the following screen will be displayed. Click the Finish Button.
Uninstalling the ZEN Support Software
Use the following procedure to uninstall the ZEN Support Software from a computer.
Select Settings/Control panel from the Windows Start Menu. Select Add or delete applications from the Windows Control Panel and then select and delete OMRON ZEN Support Software.
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Starting and Quitting

Section 1-3
Starting the ZEN Support Software
This section explains the procedure for starting and quitting the ZEN Support Software.
Select Program/Omron/ZEN Support Software/ZEN Support Software from the Windows Start Menu. After a moment the initial screen will be displayed.
When display of the opening screen is finished, the following screen will be displayed. Select Create a new program and click the OK Button.
Note a) Click Load programs from files and double-click the OK Button to open existing ladder programs when starting up the ZEN Support Software. Refer to 2-6-2 Opening Saved Files for the rest of the procedure for opening existing ladder programs. b) If uploading a program from the ZEN is selected, the following will be performed automatically. Using the ZEN online function, the contents of the property settings (ZEN model and Expansion I/O Unit configuration) will be read from the ZEN and the settings will be made. The program will be transferred from the ZEN to the computer. The ladder diagram will be displayed.
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Screen Configuration

Section 1-4
The Property Settings Screen will be displayed. Enter the ZEN model and configuration (i.e., whether or not Expansion I/O Units are connected), the project name, and a comment and press the OK Button.
Up to 31 characters can be entered.
The ZEN Support Software will start.
Quitting the ZEN Support Software
Select File(F)/Exit(E) from the Menu Bar to close the ZEN Support Software.
The ZEN Support Software allows the display to be set to either a Ladder Diagram Display or an Electric Circuit Display. The functionality of the ZEN Support Software is the same regardless of which display is used.
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Ladder Diagram Display

Menu bar Toolbars Mouse cursor

Rung comments

Ladder view of program
Bit information Status bar
Electrical Circuit Display
Menu bar Toolbars Mouse cursor Rung comments

Electrical diagram

Note To switch between the ladder diagram and electrical diagram displays, either click on the buttons in the Toolbar or else select View(V)/Circuit display method/Ladder rung diagram/ Electrical circuit diagram from the File menu.

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Circuit Diagrams and Ladder Programs

Section 2-1

In preparation for creating ladder programs, this section describes the relationship between relay circuits and ladder programs.

Ladder Programs

The ZEN uses ladder programs that appear like relay circuit diagrams.

Relay Circuit

Ladder Program

I0 I1 Q0

SW1 Ry

SW2 Ry Q0

Basic Configuration of the ZEN Ladder Programs
The ZEN can execute up to 96 lines of programming, with 3 inputs and 1 output per line. Outputs can be specified at the right ends of lines only. Inputs cannot be specified after outputs.

3 inputs 1 output

1st input

2nd input

3rd input

Output bit

The ladder program inputs and outputs are displayed on the ZEN Support Software screen as shown below. Ladder Diagram Display

3 inputs

1 output
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Memory Areas

The following table shows the memory areas that can be used in the ZEN ladder programs.

Symbol I X B

Name CPU Unit input bits Expansion I/O Unit input bits Button input bits Analog comparator bits
Function Correspond to CPU Unit input terminals. Correspond to Expansion I/O Unit input terminals. Turn ON/OFF when operation buttons are pressed on the CPU Unit during ZEN operation. Compares present analog values to setting values and outputs the compared results for CPU Units with DC power supply inputs. (The analog input terminals correspond to I4 and I5 in 10-point CPU Units, and to Ia and Ib in 20point CPU Units.) Compares timer/counter present values and timer/counter present values and settings and outputs the compared results. Compares 8-digit counter present value to preset value and outputs the compared results. Turns ON/OFF at the specified day/time
Usable as input condition Yes Yes Yes
Usable as output No No No
Timer/counter comparator bits 8-digit comparator bits Weekly timers
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Symbol Name Calendar timers CPU Unit output bits Function Turns ON/OFF between specified dates. Usable as input condition Yes Yes

Usable as output No Yes

Can specify Correspond to CPU Unit output Normal output ([), Set (S)/ terminals. Reset (R), or Expansion I/O Correspond to Alternate (A) Unit output bits Expansion I/O operation. Unit output terminals. Work bits Bits that can be used in the ladder program. Bits that maintain ON/ OFF status at power interruptions and can be used in the ladder program.

Holding bits

Timers

Yes Timers can be used for ON delay (X), OFF delay (), One-shot pulse (O), Flashing pulse (F), or Twin (W) operation. Timers that maintain the present value at power interruptions. (ON delay operation only.) Incremental or decremental counters Incremental or decremental counter with 8-digit capacity. Display character strings, month/ day, time, timer/counter present value, or analog conversion value on CPU Unit LCD display. Yes

Holding timers

Counters 8-digit Counter Display bits

Yes Yes No

Yes Yes Yes
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Memory Area Differences between Versions
The following table shows the differences between different models and different versions with respect to the memory areas that can be used.

Symbol

Name ZEN20C@@@@-V2
Bit number (See note 1.) ZEN10C@@@@-Vto 5 (6 bits) 0 to 3 (4 bits) (See note 5.) ZEN20C@@@@-Vto b (12 bits) 0 to 7 (8 bits) ZEN10C@@@@-Vto 5 (6 bits) 0 to 3 (4 bits) ZEN10C@@@@ 0 to 5 (6 bits) 0 to 3 (4 bits)
CPU Unit input bits CPU Unit output bits
0 to b (12 bits) 0 to 7 (8 bits)
Expansion I/O Unit input bits (See note 2.) Expansion I/O Unit output bits (See note 2.) Work bits Holding bits Button input bits (See note 3.) Analog comparator bits (See note 4.) Timer/counter comparator bits Timers Holding timers Counters

0 to b (12 bits max.)

M H B A P T # C
0 to f (16 bits) 0 to f (16 bits) 0 to 7 (8 bits) 0 to 3 (4 bits) 0 to f (16 bits) 0 to f (16 timers) 0 to 7 (8 timers) 0 to f (16 counters) 0 to 7 (8 timers) 0 to 3 (4 timers) 0 to 7 (8 counter s) 0 to 7 (8 timers) 0 to 7 (8 timers) 0 to 7 (8 bits) -----
Weekly timers (See note 3.) Calendar timers (See note 3.) Display bits (See note 3.) 8-digit counter 8-digit comparator bits
0 to f (16 timers) 0 to f (16 timers) 0 to f (16 bits) 0 (1 counter) 0 to 3 (4 bits)
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Inputting Ladder Programs Note

1. 2. 3. 4. 5.

Section 2-2
Bit numbers are specified in hexadecimal (0,1,2,3. 9, a, b,.e, f). The bit numbers that can be used depend on the Expansion I/O Unit connection configuration. Supported only by the LCD-type CPU Unit. Supported only by the CPU Units with a DC power supply. Three bits (0 to 2) for CPU Units with Communications.
Inputting Ladder Programs
This section describes how to input the following simple program using the ZEN Support Software. Example Ladder Program
If the ZEN Support Software has not been started, select Programs/Omron/ZEN Support Software/ZEN Support Software from the Windows Start Menu. Select Create a new program and press the OK Button.
If the ZEN Support Software has already been started, click the New Button on the Toolbar. Alternatively, select File(F)/New(N) from the Menu Bar.
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Bit type number

Replacing Inputs

To replace an input, select Edit(E)/Replace from the Menu Bar.
Replace the inputs while doing the search. (As each input is found, confirm whether or not it is to be replaced.) Replace all of the inputs in the ladder program (without confirming them individually). Bit type number
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Changing Inputs, Outputs, and Settings
Input positions for input and output bits can be changed by using the mouse or cursor keys to move to the input or output position and then use any of the following methods. Press the Enter Key. Double-click. Click the Insert Input or Insert Output Button on the Toolbar. Select Insert(I)/Contact (input bit)/Coil (output bit) from the Menu Bar. Select Edit(E)/Edit(E) from the Menu Bar. Right-click and select Edit.
For this example, double-click CPU unit output Q0.
The Edit Output Dialog Box will be displayed.
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Change the bit type in the Edit Output Dialog Box from Q to M (holding bit), specify the function and bit number, and enter a comment if necessary.
The output change has now been completed.

Inserting Inputs

Input positions for input and output bits can be inserted by using the mouse or cursor keys to move to the input or output position and then Press the Enter Key. Double-click. Click the Insert Input Button on the Toolbar. Select Insert(I)/Contact (input bit)/Coil (output bit) from the Menu Bar. Select Edit(E)/Edit(E) from the Menu Bar. Right-click and select Edit.
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Editing Ladder Programs 1,2,3.
1. Double-click the ladder program connection line.
Use the Edit Input Dialog Box to insert a input at the connection line.
Deleting Inputs and Outputs
To delete an input or output, first use the mouse or the cursor keys to highlight the input or output that is to be deleted. Then use any of the following methods. Click the Delete Button in the Toolbar. Select Edit(E)/Delete from the Menu Bar. Right-click and select Delete(D). Press the Delete Key on the keyboard.

When Copying

When Moving
Note Either the pencil or arrow cursor can be used to copy, cut, and paste individual objects.
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Copying, Cutting, and Pasting a Specified Range
1. Click the Select objects Button on the Toolbar or select Edit(E)/ Select Objects from the Menu Bar.
Note Connection lines cannot be drawn while the Select objects Button on the Toolbar is pressed. To return to normal program edit mode, click the Select Objects Button again or press the Esc Key.
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Drag the mouse from the start of the range to the end of the range.
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When Copying When Moving Click the Copy Button on the Toolbar. Click the Cut Button on the Toolbar. Select Edit(E)/Copy(C) from the Menu Bar. Right-click and select Copy. Select Edit(E)/Cut(T) from the Menu Bar. Right-click and select Cut.
Note A program saved in a ladder program file can be pasted after copying the program and then starting up the ZEN Support Software in a separate window.
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Editing Comments

Section 2-5

Deleting Rungs

Using either the mouse or cursor keys, highlight the rung that is to be deleted. Then use any of the following methods to delete the rung. Select Edit(E)/Delete Rung from the Menu Bar. Right-click and select Rung(L)/Delete(R). 1. Highlight the position and then select Edit(E)/Delete Rung from the Menu Bar.
The highlighted rung will be deleted, and the next rung will be moved up.
The comment edit function is used to display or edit all I/O comments by bit type.
Select Edit(E)/Edit Comments from the Menu Bar.
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Saving Ladder Programs

2. Edit the comment in the Edit Comment Screen.

Section 2-6

Programs are easier to understand and manage if actual I/O device names or names relating to functions are used in the I/O comments. Click the Show Comments Button on the Toolbar or select View(V)/Show Symbol Comments from the Menu Bar to display or not display the I/O comments in ladder view on the screen.
This section describes how to save ladder programs to file.

Saving to File

1. 2. Select File(F)/Save As(A) from the Menu Bar. The Save As Dialog Box will be displayed. Select the save destination and enter the file name, and then click the Save Button.

Click the OK Button to save the settings in the project. Click the Cancel Button to discard the settings. Click the Defaults Button to return to the default settings.
Check communications with the ZEN before transferring or verifying programs. Connect the computer to the ZEN and perform the check operation with the project file open.
Select File(F)/Properties from the Menu Bar and make the ZEN model and Expansion I/O Units 1 to 3 settings in the Properties Dialog Box to match the system configuration of the ZEN to be connected online. Turn OFF the ZEN power, connect the ZEN to the computer with the Computer Connecting Cable, then turn ON the ZEN power again. When using a ZEN that supports external communications, a confirmation message that says, RS-485 will stop. Y/N will be displayed on the ZEN when you turn ON the power. Select Yes, then click the OK Button Open the project file. Click the Go Online Button on the Toolbar or select ZEN(Z)/Go Online/Offline(W) from the Menu Bar. A confirmation dialog box will be displayed. Click the OK Button.
Check that the Status Bar display has changed from Offline to Online. The background color for the ladder view area will change to gray when the ZEN is online.
Click the Go Online Button on the Toolbar again or select ZEN(Z)/Go Online/Go Offline(W) from the Menu Bar. The display on the Status Bar will return from Online to Offline. The background color for the ladder view area will change back to white.
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Transferring Programs to the ZEN Note

Section 3-3

Ladder programs cannot be edited when online. Always go offline before creating or editing ladder programs. Select ZEN/ZEN Information(S) from the Menu Bar while online to obtain information about the connected ZEN.
Transferring Programs to the ZEN
This section describes how to transfer ladder programs created using the ZEN Support Software to the ZEN. The ZEN must be connected and online and the project file opened before the program transfer operation can be executed.

Precaution 1,2,3.

Perform adequate safety checks before transferring the program to the ZEN. 1. Click the Transfer to ZEN Button on the Toolbar or select ZEN(Z)/ Transfer(R)/Transfer to ZEN(T) from the Menu Bar. The Transfer to ZEN Dialog Box will be displayed. Click the OK Button to transfer the program to the ZEN. Click the Cancel Button to cancel the transfer.
Settings Details Select The settings are downloaded too in the Transfer to ZEN Dialog Box to download the ZEN settings in the ZEN Support Software at the same time. Refer to 4-1 ZEN Settings for information on the various ZEN settings. Select Protection is set in the Transfer to ZEN Dialog Box if the ZEN is to be protected by the password set in the ZEN Support Software. Do not select this option if no password has been set. Refer to 4-2 Setting a Password for information on setting passwords.

Default None English 2 min OFF
Expansion I/O Unit 1 ON: With input filter (See note b.) Expansion I/O Unit 2 (See note b.) Expansion I/O Unit 3 (See note b.)
Send delay time (See note c.) Initialize modem (See note c.)
Send delay time for the initialization command to the modem set in the ZEN Initializes the modem set in the ZEN.
Note a) The display language and background settings can be used for LCD-type CPU Units.
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b) Input filters can be set only for Expansion I/O Units that exist in the system configuration. c) Do not change these settings. They are for future functional expansions.(These settings are not displayed for models with communications.) b) When Using a -V1 or Earlier CPU Unit
Setting Daylight saving time (See note a.) Display language (See note a.) Contrast control (See note a.) Backlight control (See note a.) Input filter CPU Unit
Details None, manually, EU Type, US Type English, Japanese, German, French, Italian, Spanish Light, Medium light, Medium, Medium dark, Dark 2 min, 10 min, 30 min, always OFF: No input filter

Default None English

2 min OFF
Note a) The display language and background settings can be used for LCD-type CPU Units. b) Input filters can be set only for Expansion I/O Units that exist in the system configuration. c) Do not change these settings. They are for future functional expansions.
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Click the OK Button to save the settings. Click the Cancel Button to discard the settings. Click the Initialization Button to return to the default settings. Settings can be sent between the ZEN and the ZEN Support Software if the ZEN is online. Click the Transfer to ZEN Button to transfer the settings to the ZEN or the Transfer from ZEN Button to transfer the settings from the ZEN to the ZEN Support Software. Press the Compare with ZEN Button to compare the settings on the computer and the ZEN.

Time Settings

With the LCD-type CPU Units, time and date settings are preformed online.
Select ZEN(Z)/Set Protection(E)/Time Setting(T) from the Menu Bar. The Time Settings Dialog Box will be displayed. Set the date and time for the ZEN internal clock.
Settings ZEN internal clock PC time Date Time Date Time
Details Edit the ZEN date. (Date read from the ZEN at startup or same date as computer) Edit the ZEN time. (Time read from the ZEN at startup or same time as computer) Displays the computer date. Displays the computer time.
Note To set the date and time display styles, select Settings/Control Panel/Regional Settings from the Start menu. Select Date to set a date style or Time to set a time style (when using Windows 2000). 3. Click the OK Button to send the settings to the ZEN. Click the Cancel Button to discard the settings. Click the Synchronization Button to use the computer date and time as the ZEN date and time. When the Synchronization Button

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Appendix A

Shortcut Keys and Hot Keys Shortcut Keys
Key Ctrl + A Ctrl + C Ctrl + F Ctrl + N Ctrl + O Ctrl + P Ctrl + R Ctrl + S Ctrl + V Ctrl + W Ctrl + X Ctrl + Y Ctrl + Z Alt + LEFT Alt + RIGHT Alt + F4 I Q X Y M H B T # @ * C F A P G D Delete Copy Find Create Open Print Edit Rung comments Save Paste Cut Redo Undo Zoom Out Zoom In Quit CPU Unit Input Bit Edit Dialog Box Display CPU Unit Output Bit Edit Dialog Box Display Expansion I/O Unit Input Bit Edit Dialog Box Display Expansion I/O Unit Output Bit Edit Dialog Box Display Work Bit Edit Dialog Box Display Holding Bit Edit Dialog Box Display Button Switch Edit Dialog Box Display Timer Edit Dialog Box Display Holding Timer Edit Dialog Box Display Weekly Timer Edit Dialog Box Display Calendar Timer Edit Dialog Box Display Counter Edit Dialog Box Display 8-digit Counter Edit Dialog Box Display Analog Comparator Edit Dialog Box Display Comparator Edit Dialog Box Display 8-digit Comparator Edit Dialog Box Display Display Edit Dialog Box Display Delete File (F) Save (S) Edit (E) Paste (P) Edit (E) Cut (C) Edit (E) Undo (U) Edit (E) Redo (Y) Insert (I) Rung (M) View (V) Zoom Out View (V) Zoom In Function Select All Menu bar equivalent Edit (E) Select All (A) Edit (E) Copy (C) Edit (E) Find (F) File (F) New (N) File (F) Open (O) File (F) Print (P)
Online Connect/Disconnect ZEN (Z) Go Online/Offline (W)
Ctrl + Alt + DOWN Insert Rung
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Shortcut Keys and Hot Keys
Key F3 F1 Help Function Find Next Edit (E) Find Next

Menu bar equivalent

Hot Keys
Hot keys can be used to insert a programming element into a selected cell. If inputs and outputs are already set, however, the existing data will be given priority.
Key SHIFT + I SHIFT + O I Function Insert Input (Input Edit Dialog Box Display) Insert Output (Output Edit Dialog Box Display) Insert Horizontal Connection Line Insert Vertical Connection Line
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Appendix B

Support Software Version Upgrades
The following table shows the relationship between the version and functions of the ZEN Support Software and the ZEN CPU Unit.
Date of revision January 2002 ZEN CPU Unit System Software (See note 1.) The system software was upgraded to version 1.1. Main Changes The following display functions have been added to LCD-type CPU Units. Clear display function The display object DAT1 (day/month) System Software (See note 1.) The system software was upgraded to version 2.0. (-V1 was added to the CPU Unit model number.) Main Changes (See note 2.) The number of timers, counters, weekly timers, calendar timers, and display bits was increased from 8 to 16. The number of holding timers was increased from 4 to 8. A 20-point CPU Unit was added to the lineup. System Software (See note 1.) The system software was upgraded to version 3.0 (-V2 was added to the CPU Unit model number.) Main Changes (See note 2.) Addition of multiple-day operation and pulse-output operation to the weekly timers Addition of twin time operation to the timers Addition of an 8-digit counter and 8-digit comparators Addition of models with communications (10-point models only) and economy CPU Units Addition of daylight saving time settings for Australia and New Zealand Deletion of contrast control ZEN Support Software Changes Applicable from Version 2.0 (ZEN-SOFT01-V2) Changed to handle additional display functions. Simulation function added. Improvements made to functions, operability, and display. Changes Applicable from Version 3.0 (ZEN-SOFT01-V3) Changed to handle the memory area expansion in -V1 CPU Units. Changed to handle addition of 20-point CPU Units.

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When reading out the program from the ZEN, the following items will be determined based on the display function (D) settings contained in the program. If "DAT1: day/month" is set, CHR (character designation) will be set. If "C (clear)" is set, the display function (D) will be deleted from the program. Note The above operations were not supported by ZEN Support Software versions lower than 2.0.
Cannot be used with 20-point CPU Units. Restricted to use within the memory area range of Pre-V1 CPU Units.
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Address_new.fm Page 1 Thursday, September 15, 2005 4:42 PM
OMRON Corporation Industrial Automation Company Control Devices Division H.Q. Analog Controller Division Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530 Japan Tel: (81)75-344-7080/Fax: (81)75-344-7189 Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69, NL-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC 1 East Commerce Drive, Schaumburg, IL 60173 U.S.A. Tel: (1)847-843-7900/Fax: (1)847-843-8568 OMRON ASIA PACIFIC PTE. LTD. 83 Clemenceau Avenue, #11-01, UE Square, 239920 Singapore Tel: (65)6835-3011/Fax: (65)6835-2711 OMRON (CHINA) CO., LTD. Room 2211, Bank of China Tower, 200 Yin Cheng Road (M), Shanghai, 200120 China Tel: (86)21-5037-2222/Fax: (86)21-5037-2200
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In the interest of product improvement, specifications are subject to change without notice.

Authorized Distributor:

Cat. No. Z184-E1-03

Printed in Japan 0905