Omron Profibus DP Gateway
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Omron Profibus DP Gateway
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Do not operate the Unit in the following places: Locations subject to direct sunlight. Locations subject to temperatures or humidities outside the range specified in the specifications. Locations subject to condensation as the result of severe changes in temperature. Locations subject to corrosive or flammable gases. Locations subject to dust (especially iron dust) or salt. Locations subject to exposure to water, oil, or chemicals. Locations subject to shock or vibration. Provide proper shielding when installing in the following locations: Locations subject to static electricity or other sources of noise. Locations subject to strong electromagnetic fields. Locations subject to possible exposure to radiation. Locations near to power supply lines. The operating environment of the PROFIBUS DP Gateway can have a large effect on the longevity and reliability of the system. Unsuitable operating environments can lead to malfunction, failure and other unforeseeable problems with the system. Ensure that the operating environment is within the specified conditions at installation time and remains that way during the life of the system. Follow all installation instructions and precautions provided in the operation manuals.
or less) when installing the
Failure to abide by the following precautions could lead to faulty operation of the Unit or the system or could damage the Unit or Temperature Controllers and R88A-MCW151-E. Always heed these precautions. Install double safety mechanisms to ensure safety against incorrect signals that may be produced by broken signal lines or momentary power interruptions. When adding a new device to the network, make sure that the baud rate is the same as other nodes.
When adding a new Host Link or Compoway-F node to the network, make sure that the PROFIBUS DP Gateway is powered down, to prevent unexpected results when starting up the new node. Use specified communications cables. Do not extend connection distances beyond the ranges given in the specifications. Always turn OFF the power supply to the personal computer, Slaves, and Communications Units before attempting any of the following. Mounting or dismounting the PROFIBUS DP Gateway, Power Supply Units, I/O Units, CPU Units, or any other Units. Assembling a Unit. Setting DIP-switches or rotary switches. Connecting or wiring the cables. Connecting or disconnecting connectors. Be sure that all the mounting screws, terminal screws, Unit mounting screws, and cable connector screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction. Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if foreign matter enters the Unit. Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction. Always use the power supply voltage specified in this manual. Double-check all the wiring and connection of terminal blocks and connectors before mounting the Units. Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Observe the following precautions when wiring the communications cable. Separate the communications cables from the power lines or high-tension lines. Do not bend the communications cables. Do not pull on the communications cables. Do not place heavy objects on top of the communications cables. Be sure to wire communications cable inside ducts. Use appropriate communications cables. Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied in places where the power supply is unstable. An incorrect power supply may result in malfunction. Install external breakers and take other safety measures against short-circuits in external wiring. Insufficient safety measures against short-circuits may result in burning. Double-check all the wiring and switch settings before turning ON the power supply. When transporting or storing the product, cover the PCBs with electrically conductive materials to prevent LSIs and ICs from being damaged by static electricity, and also keep the product within the specified storage temperature range.
Class 1 Master (DPM1)
Class 2 Master (DPM2)
Bus Access Protocol
The PROFIBUS bus access protocol is implemented by OSI layer 2. This protocol also includes data security and the handling of the transmission protocols and messages. The Medium Access Control (MAC) specifies the procedures which determine when a device is permitted to transmit data. A token passing procedure is used to handle the bus access between master devices, and a polling procedure is used to handle the communication between a master device and its assigned slave device(s). The token passing procedure guarantees that the bus access right (the token) is assigned to each master within a precisely defined time frame. The token message, a special message for passing access rights from one master to the next master, must be passed around the logical token ring - once to each master - within a specified target rotation time. Each master executes this procedure automatically. The polling or master-slave procedure permits the master, currently in possession of the token, to access its assigned slaves. The figure below shows a possible configuration The configuration shows three active devices (masters) and six passive devices (slaves). The three masters form a logical token ring. When an active device receives the token message, it can perform its master role for a certain period of time. During this time it can communicate with all assigned slave devices in a master-slave communication relationship, and a DPM2 master can take the initia-
OSI Layer 2: Bus Access Protocol Medium Access Control
tive to communicate with DPM1 master devices in a master-master communication relationship.
Multi-peer Communication Broadcast Communication Multicast Communication
In addition to logical peer-to-peer data transmission, PROFIBUS DP provides multi-peer communication (broadcast and multicast). In the case of broadcast communication a master device sends an unacknowledged message to all other devices (masters and slaves). In the case of multicast communication a master device sends an unacknowledged message to a predetermined group of devices (masters and slaves).
Extensive diagnostic functions defined in PROFIBUS DP enable the fast location of error at slave devices. Diagnostic messages are transmitted over the bus and collected at the master. Three levels of diagnostic messages are defined: Messages concerning the general operational status of the whole device, e.g. over temperature, low voltage. Messages indicating that an error is present in a specific I/O range of a device, e.g. an 8-bit output module. Messages indicating an error at a given input or output, e.g. short circuit on Output 5.
Device Related Diagnostics Module Related Diagnostics Channel Related Diagnostics
PROFIBUS DP provides effective protection functions against parameterization errors or failure of the transmission equipment. Time monitoring is provided both at the master and the slave devices. The monitoring interval is specified when the system is configured. The PROFIBUS DP Master monitors data transmission of the slaves with the Data-Control-Timer. A separate control timer is used for each slave. This timer expires if response data is not correctly transmitted by the slave within the monitoring interval. The user is informed when this happens. If the automatic error reaction (Auto-CLEAR) has been enabled, the PROFIBUS DP
Monitoring at the Master
PROFIBUS DP Network configuration
master exits its OPERATE state, switches the outputs of all assigned slaves to the fail-safe status and changes to the CLEAR state. Monitoring at the Slave Slave devices use a watchdog to detect failures of the master or the bus. If data communication with the master does not occur within the set watchdog time interval, a slave automatically switches its outputs to the fail-safe mode. Also, access protection is provided for the inputs and outputs of the slaves operating in multi-master systems. Only authorized masters can access their slaves.
OFF-LINE STOP CLEAR
Network Operation Modes
PROFIBUS DP distinguishes four different network operation modes: Communication with all PROFIBUS DP participants (masters and slaves) is stopped. The Master ceases to access the PROFIBUS network. Communication between the master and its slaves is stopped. Only communication between the master and other masters is still possible. The master tries to set parameters, check the configuration, and perform data exchange with its associated slaves. Data exchange involves reading the inputs of the PROFIBUS DP slaves and writing zeros to the outputs of the slaves. The master exchanges data with its assigned slaves, inputs are read and outputs are written. Also, the master cyclically sends its local status to all its assigned PROFIBUS DP slaves (using a broadcast message). If an error occurs during the data exchange phase of the master, the AutoCLEAR function determines the subsequent actions. If this function has been disabled, the master remains in the OPERATE mode. If the function has been enabled, the master automatically changes the network to the CLEAR mode, in which the outputs of the assigned PROFIBUS DP slaves are switched to zero, i.e. the fail-safe state. The master continues to read the inputs of the slaves.
In order to operate a PROFIBUS network, each master in the network needs to be configured. This process of PROFIBUS Master configuration involves: setting up the network topology, i.e. assigning the slave devices with which the master will be exchanging data, defining the parameterization data, which the master will send to each of the slave devices, before process data exchange can commence defining the configuration data, i.e. defining the process data, which will be exchanged, setting up the bus parameters, which define the baud rate and the bus timing parameters. downloading the configuration setup to the master device.
The configuration process is usually facilitated by a special Computer based program, often referred to as a Configurator. The Configurator requires special configuration files, defining the configuration options for each device, which is to participate in data exchange. The files must be provided by the manufacturer of the device.
Two types of configuration technology exist: Configuration technology based on FDT/DTM technology Configuration technology based on GSD-files FDT/DTM Concept
The FDT/DTM concept specifies the interfaces between the engineering systems called Field Device Tools (FDT), and the device-specific software components called Device Type Managers (DTM). The FDT/DTM concept separates the device dependent functionality (which is in the DTM) from the application. It provides separate interfaces for device configuration, monitoring and maintenance solutions, which before largely depended on the manufacturer of the application. Because of this concept, FDT/DTM technology is not limited to PROFIBUS applications. In concept, any type of network can be configured and accessed, provided the appropriate DTMs are available. CX-Profibus is an example of a FDT container application. It is described in detail in the following sections.
GSD file Technology
The older and most commonly used configuration technology is the based on GSD files (General Slave Data file). A GSD file is a text file, containing the characteristic features and configuration options of a device. The device data base file of each device is loaded in the configurator and downloaded to the master device. GSD files are usually supplied with a unit, or can be downloaded from the Internet, either from the manufacturer's site, or from the GSD library of the PROFIBUS Nutzer Organisation at http://www.profibus.com.
GSD File Language
The language used in the GSD file is indicated by the last letter of the file extension, *.GS?: Default = GSD English = GSE German = GSG Italian = GSI Portuguese = GSP Spanish = GSS The GSD files are prepared individually by the vendor for each type of device, according to a fixed format. Some parameters are mandatory, some have a default value and some are optional. The device data base file is divided into three parts:
Shock resistance Environment Front case I/O units + data Dielectric strength Conformance to EMC and Electrical safety standards Settings, rotary switches Settings DIP-switches
PROFIBUS Connector Number of GSD I/O Units Number of GSD I/O modules
Number of I/O data supported by slave Unit Number of diagnostics data supported by slave Unit Extended diagnostics supported by the slave Unit
Item Media types Specification
RS-422A, galvanically isolated. RS-485, galvanically isolated. Selection for RS-485 is made with Physical layer switch 1 (see2-1-3 Switch Settings). ON: RS-485 OFF: RS-422A Internal 220 Ohm resistor between receiver lines. Use of resistor can be enabled or disabled, using Physical layer switch 2 (see2-1-3 Switch Settings). ON: Termination resistor enabled. OFF: Termination resistor disabled. 5-pin Phoenix connector 9.6 kbit/s 19.2 kbit/s 38.4 kbit/s Selection via DIP-switches 1 and 2. (See 2-1-3 Switch Settings). Compoway-F Host Link K-Format Memobus
Connector Baud rates supported Protocol port physical layer
Protocol types supported via this port
Device address range Media type
1 ~ 15, set through the slot number of the PROFIBUS module configuration. Number 0 (zero) is reserved. RS-232C, located behind cover marked Peripheral Use the CS1W-CN226 connection cable for connecting the PRT1SCU11 with Thermotools Baud rate used on Auxiliary port is the same as the baud rate used on the main protocol port. Selection via DIP-switches 1 and 2. (See 2-1-3 Switch Settings). Compoway-F K-Format Memobus EN50170, Volume 2 PROFIBUS DP PROFIBUS DP slave RS-485, galvanically isolated 9-pin sub-D female connector (#4/40 UNC thread) Termination according to EN50170 provided by the cable connector
Baud rates supported Auxiliary port
Applicable standards Protocol type supported PROFIBUS Unit type PROFIBUS Media type PROFIBUS Connector Unit device address range Baud rates supported (Auto-detect) PROFIBUS DP interface
0 ~ 99, set through rotary switches
Remote setting not supported. 9.6 kbit/s 19.2 kbit/s 45.45 kbit/s 93.75 kbit/s 187 kbit/s 500 kbit/s 1.5 Mbit/s 3 Mbit/s 6 Mbit/s 12 Mbit/s
Item PROFIBUS services supported I/O Data PROFIBUS services Specification
Set_Prm Chk_Cfg Get_Cfg Slave_Diag Data_Exchange RD_Inp RD_Outp Global_Control - Sync / Unsync Freeze / Unfreeze/ Clear
Number of I/O data supported Number of diagnostics data supported
The illustration below shows the DIP-switches, physical layer switches, auxiliary RS-232C port (behind cover), the status LED indicators, the unit number selector switch, and a 9-pin female sub-D connector on the front side of the PRT1-SCU11. Each of these components is explained in the following sections.
DIP switches PROFIBUS address rotary switches
Peripheral port (behind cover)
Unit LED indicators
Power supply input
RS-422A / RS485 switch Termination switch
RS-422A / RS485 connector
The PRT1-SCU11 has six colored (red and green) LEDs to indicate the operational mode, and status of the Unit, the status of the PROFIBUS interface and the status of the RS-422A / RS-485 interface.
Indicator RUN Color Green Status Not lit Description Startup test failed, Unit not operational. Operation stopped due to a fatal error. Power is off. Initialization successful, Unit is in normal operation.
Lit ERR (unit error) Red Not lit Flashing Lit FCOM (RS-422A / RS-485 communication) Green Not lit
The PRT1-SCU11 is in normal operation (RUN LED is lit). The Unit was not able to initialize normally due to a fatal error during system startup. Fatal error during operation occurred. No communication with any devices attached to the RS-422A / RS-485 network. This may be caused by: a communication failure (broken wire). a non initialized PROFIBUS DP interface. the PRT1-SCU11 is not able to exchange data with all configured devices. Communication with the RS-422A / RS-485 network is performed through the auxiliary port. The PROFIBUS DP interface is bypassed. RS-422A / RS-485 communication active, no errors. No RS-422A / RS-485 network errors present. The PRT1-SCU11 is exchanging data with all configured devices. A failure occurred in the RS-422A / RS-485 network communication. The PRT1-SCU11 is not in Data_Exchange with the PROFIBUS DP master. Auxiliary port ready, PROFIBUS DP interface is not active. The PRT1-SCU11 is in Data_Exchange with the PROFIBUS DP master. No PROFIBUS DP communication errors, Set_Prm and Chk_Cfg messages have been accepted. Data_Exchange in progress. Either the Set_Prm or the Chk_Cfg message has been rejected by the PRT1-SCU11. The Unit is not in Data Exchange with the PROFIBUS DP master. All communication with the PROFIBUS DP master is lost. The PRT1SCU11 is awaiting a new Set_Prm message.
Flashing Lit FERR (RS-422A / RS-485 communication) COMM (PROFIBUS communication) Green Not lit Lit Green Not lit Flashing Lit BF (PROFIBUS Bus fail) Green Not lit Flashing
This section discusses the operational aspects of using the PRT1-SCU11 and the configuration software. The section has been setup, to follow the general process flow of setting up and configuring a network, downloading the configuration, and operating the PROFIBUS network, the Compoway-F, K-Format, Host Link or Memobus network. The PROFIBUS Master can communicate with the PRT1-SCU11 using fixed communication block and/or Free Communication blocks. In case Error messages are displayed, while using CX-Profibus, refer to the appropriate manual for more information on errors. Note 1. The maximum number of devices is 15. 2. The maximum of modules is 18. This number consists of 15 fixed communication blocks, 1 write, 1 read and 1 operation Free Communication block.
As mentioned in the previous section there are two ways of PROFIBUS communication. Communication with fixed communication blocks and Free Communication blocks.
Fixed Communication Blocks Example
Fixed communication blocks are pre-defined blocks of data to be read/written from/to a device. Fixed communication blocks can not be changed. The most common data can be read/written using fixed communication blocks. For an E5ZN connected to the PRT1-SCU11 a 2-channel basic fixed I/O block defines the data transfer of 1 Setpoint Value for each channel and 1 Process Value for each channel between the PROFIBUS Master unit and the E5ZN through the PRT1-SCU11. Free communication blocks are sent directly to the device connected to the PRT1-SCU11. The PRT1-SCU11 does not interfere with the data contents of the block. This allows Free Communication blocks to be used to access data in a device which can not be accessed through fixed communication blocks. Free Communication Blocks can be used for Compoway-F and the K-Format protocol. Flexible communication blocks are defined for the Memobus protocol and are a mix between the fixed blocks and the Free Communication blocks. The flexible communication blocks will contain 3 input words and 3 output words, for each of which a target register in the Varispeed F7 Inverter can be defined. The maximum amount of PROFIBUS data the PRT1-SCU11 can handle is 100 words input data and 100 words100 output data. If more capacity is needed an extra PRT1-SCU11 is required to access additional devices. Note As per PROFIBUS DP definition the I/O data words are sent in Big Endian format, i.e. the high byte is sent first.
For the K-Format protocol one Free Communication Block is available, which has however, a different format as compared to the Free Communication Block for Compoway-F. The one Free Communication block allows implementation of Read, Write and special Operation type of commands.
Free Communication Block Format
The Free Communication block reserves 3 words of input data and 3 words of output data. The output format is shown below.
Device address 1 byte Reserved 1 byte Command type 1 byte Parameter Number/ Command code 1 byte Data 2 byte
The table below lists the message parameters.
Message parameter Device address Reserved Command type Description The address number of the target device. A reserved byte, which will be ignored by the PRT1-SCU11 A command type code 1 = Read command 2 = Write command 3 = Special command 4 ~ FF = Invalid command Refer to the E5AK / E5EK Operation Manual. In case the Command type is set to 1 or 2, use the Parameter number to specify the parameter to be read or written. In case the Command type is set to 3, use the Command code to define the Special Operation. Data to be written. The PRT1-SCU11 will ignore this part in case of a Read command or a special operation command.
Parameter Number / Command Code
The input format is shown below.
Host Link Communication
Device address 1 byte
End code 1 byte
Command type 1 byte
Parameter Number/ Command code 1 byte
Data 2 byte
Message parameters Device address End code Description The address number of the target device. Indicates failure or success of the command transmission. If the End code is not equal to 0, the data part must be considered invalid. A command type code 1 = Read command 2 = Write command 3 = Special command 4 ~ FF = Invalid command This is the same as sent to the device via the output data. Refer to the E5AK / E5EK Operation Manual. In case the Command type is set to 1 or 2, use the Parameter number to specify the parameter to be read or written. In case the Command type is set to 3, use the Command code to define the Special Operation. Data read from or written to the E5AK / E5EK Controller.
In the following table the fixed communication blocks for Host Link communication are listed.
The PRT1-SCU11 provides extended diagnostics over PROFIBUS to notify the PROFIBUS DP Master of the Units status and the status of the RS-422A/ RS-485 communication. These extended diagnostics are sent to the Master unit via a PROFIBUS Diagnostics message. These messages are only sent up on occurrence of the error or status event. A PROFIBUS Diagnostics message will contain 6 standard diagnostics bytes, followed by the Extended diagnostics bytes, in case any extended diagnostics data is available. The extended diagnostics bytes as produced by the PRT1SCU11 are shown below.
7 Byte 1 Block length (Bytes) Including Header byte Fixed to 1 0
7 Byte 2
Device 01 Comm. error Device 02 Comm. error Device 03 Comm. error Device 04 Comm. error Device 05 Comm. error Device 06 Comm. error Device 07 Comm. error Device 08 Comm. error
7 Byte 3
Device 09 ~ 16 Comm. error
7 Byte 4
Device 17 ~ 24 Comm. error
7 Byte 5
Device 25 ~ 31 Comm. error
7 Byte 6, Byte 7
7 Byte 8, Byte 9
1. Byte 1 in the figure above represents the 7th byte in a diagnostics message. The first 6 bytes (not shown here) are standard diagnostics. 2. If a bit flag in byte 2 to 5 is ON, the corresponding device on the RS-422A/ RS-485 network is not responding or it has reported a communication error.
Auxiliary RS-232C interface
The PRT1-SCU11 provides an RS-232C interface, behind a cover lid on the front of the Unit. This interface allows a user to connected an IBM compatible computer with a serial port and send and receive data to a Compoway-F, or KFormat device using the software package CX-Thermo. Equally, when Memobus has been selected as the protocol, the RS-232C interface can be used to transfer commands from CX-Drive and the Varispeed F7 Inverter.
Before using CX-Thermo DIP-switch 4 must be set on, a group of four DIPswitches is located on the front of the PRT1-SCU11 Unit. Note CX-Thermo is not shipped with the PRT1-SCU11. When DIP-switch 4 is switched on, the PRT1-SCU11 will stop the data exchange with the PROFIBUS Master. The PROFIBUS DP interface will stay inactive until switch 4 is switch off. When DIP-switch 4 is set on: The diagnostics indicates Slave Not_Ready. FERR LED is switched off. COMM LED starts flashing. FCOM start flashing. BF LED is switched off. To connect with the PRT1-SCU11 use an auxiliary RS-232C compatible interface on an IBM compatible computer and a standard Omron RS-232C PLC cable e.g. (CS1W-CN226). Note The interface connection is not galvanically isolated. The baud rate settings are the same as used for the Compoway-F interface, as set through the associated DIP-switches.
RS-422A / RS-485 LEDs FCOM Not lit FERR Not lit Description No communication over RS-422A / RS-485. Probably a broken wire. Unit has not initialized. Not all devices configured in the PRT1SCU11 are communicating. No power connected to the Unit. No PROFIBUS communication. Unit has not been initialized with a configuration and cannot proceed with RS422A/ RS-485 communication. Communication with RS-422A / RS-485 devices fails, the Unit is unable to establish communication with all devices. Solution Check all cables and connections. Switch the Unit off and on, make sure the network configuration has been downloaded. Check Compoway-F, Host Link, K-Format or Memobus addresses, baud rate settings. If baud rate settings are changed a restart must performed Switch power to the Unit. The hardware does not correspond with the configured network in the software. -
Communication by auxiliary port selected. End your ThemoTools session and switch DIPswitch 4 to off. Switch to the old baud rate settings if these ware changed, when baut rate settings are changed a restart must performed. No communication with RS-422A / RS485 network. Check Compoway-F, Host Link, K-Format or Memobus addresses, baud rate settings, when baut rate settings are changed a restart must performed. Check all cables and connections.
PROFIBUS LED Indicators
The Unit LED indicators show the status of the communication with PROFIBUS. These are the two lowest LEDs. In the next table an overview of all possible LED states of the two PROFIBUS LED indicators, a description of the error and a possible solutions to solve the error are presented.
COMM Not lit Not lit
BF Not lit Lit
Description No power connected to the Unit No communication with PROFIBUS Master
Solution Switch power to the Unit Check if the PROFIBUS Master is running Check all PROFIBUS cables and connections, termination resistor.
The wrong module selected in the network The hardware does not correspond with the configconfiguration ured network in the software, Check also the PROFIBUS addresses of the Unit Compoway-F, K-Format or Memobus communication through the auxiliary port End your ThemoTools / CX-Drive session and switch DIP-switch 4 to off. Switch to the old baud rate settings if these ware changed, when baut rate settings are changed a restart must performed -
Communication in progress
This section describes the routine cleaning and inspection recommended as regular maintenance.
Clean the PRT1-SCU11 regularly as described below in order to keep it in an optimum operating condition. Regularly wipe the Unit with a dry, soft cloth. If a spot cannot be removed with a dry cloth, dampen the cloth with a neutral cleaner, wring out the cloth and wipe the Unit.
Be sure to inspect the system periodically to keep it in optimum operating condition. In general, inspect the system once or twice a year, but more frequently if the system is used in high temperature or high humidity environments or dirty/dusty conditions.
Never use volatile solvents such as paint thinner, benzine or chemical wipes. These substances could damage the surface of the Unit.
Prepare the following equipment before inspecting the system. Required Equipment Phillips type screwdriver, multimeter, alcohol, and a clean cloth. Optional Test Equipment Depending on system conditions, a synchroscope, oscilloscope, thermometer or hygrometer (to measure humidity) might be needed. Check the items in the following table and correct any that are below standard.
Item Environmental conditions Ambient temperature Ambient humidity Dust/dirt accumulation Installation Are the units installed securely? Are the communications connectors fully inserted? Are the external wiring screws tight? Standard 0 C to 55 C 10% to 90% None No looseness No looseness No looseness Equipment Thermometer Hygrometer -----------
Are the connecting cables undam- No damage aged?
Replacing the Unit
The PRT1-SCU11 is a network device. If the Unit is damaged, it will effect the entire Network, so always ensure repairs are undertaken immediately. It is recommended to have a spare PRT1-SCU11 on hand so that repairs may be conducted quickly.
Observe the following precautions when replacing the Unit. Always turn OFF the power before replacing the Unit. Ensure that the new Unit is not faulty. If a poor connection is suspected of causing the malfunction, clean the connectors using a clean, soft cloth and industrial-grade alcohol. Remove any lint or threads left from the cloth, and remount the Unit. When returning a faulty unit for repair, always attach a detailed fault report to the unit and return it to the nearest OMRON dealer.
1. In order to prevent faulty operation be sure to turn off the power to all master and slave devices before replacing the Unit. 2. When replacing the Unit, do not reconnect it to the Network before carrying out the procedures listed below.
PV monitor SP monitor Status A group Status B group Operation Execute Setpoint Special operation
R R R R R W W
-Special Command is used to read Status A/Status B. 0000 = Status group A 0001 = Status group B Response to Special Operation is returned. Special Command is used to initiate Run or Stop. 0000 = Run 0001 = Stop
Alarm Value 1 Alarm Value 2 PV monitor SP monitor Status A group Status B group Operation Execute
W W R R R R R
-Special Command is used to read Status A/Status B. 0000 = Status group A 0001 = Status group B Response to Special Operation is returned.
Parameter / Command Mapping for Memobus Devices
The table below lists the Mapping of individual parameters in the Fixed and Flexible I/O blocks on to the OYMC Varispeed F7 Inverter. Refer to the F7 Inverters Operation Manual (YEG-TOE-S616-55.1-OY) for more information
Parameter Command register Fixed block Frequency register Voltage register Status register Frequency register Voltage register Write register 1 Flexible block Write register 2 Write register 3 Read register 1 Read register 2 Read register 3 Read/ Write W W W R R R W W W R R R Register Number (Hex) 0000 ~ FFFF 0000 ~ FFFF 0000 ~ FFFF 0000 ~ FFFF 0000 ~ FFFF 0000 ~ FFFF The registers to read/write can be selected by the user when setting up the PROFIBUS I/O configuration. An invalid register address selection (i.e. non-existent or read-only) will result in a Memobus error. See Note Remarks
Note Being able to write to the voltage register, a special firmware version - VSF108981 - for the Varispeed F7 Inverter is required. Contact your supplier on how to obtain this firmware upgrade.
Function Block Programming
In order to facilitate the data transfer to and from Temperature Controllers from a CS1/CJ1W-PRM21 PROFIBUS DP Master via the PRT1-SCU11, OMRON provides a number of PLC Function Blocks. These function blocks can be used in the CS1/CJ1 PLC program to assemble the output data or extract the input data from the CS1/CJ1W-PRM21 PROFIBUS Master I/O data areas. This appendix describes these function blocks. Note Function Blocks are only supported by CX-Programmer version 5.0 and higher.
Bit A (BOOL) EN (UINT) StratWordOutput (UINT) StartWordInput (UINT) UnitNo (UINT) CommandCode (UINT) RelatedInformation (BOOL) ENO (WORD) ResponseCode (BOOL) Busy
Start Word Profibus output data &3200 Start Word Profibus input data &3300 Unit No of TC &1 Command Code #01 Related information to the operation command #10
Response code from TC Channel 2 Busy flag Bit B
The table below lists the Input and Output variables for the Operate function block.
Name EN Start Word PROFIBUS Output data Start Word PROFIBUS Input data Unit No of device Input variables Command code Information related to the operation command ENO Variable name EN StartWordOutput Data type BOOL UINT 3000 Default Range Description
1 (ON): Function block started. 0 (OFF): Function block not started. Start Word of PROFIBUS Output data in PROFIBUS Master Output data area. Start Word of PROFIBUS Input data in PROFIBUS Master Input data area. #0 - #63 Unit number of device. (0-99) Variable type in device. Specify the Write Start address.
1 (ON): Function block processed normally 0 (OFF): Function block not processed or ended in an error. Outputs the error code when execution ended in an error in the communications command level. Refer to section 3-3-4 Free Communication Blocks for more information. Automatically turns OFF when processing is completed.
Result of execution of the command Busy flag
Read Function Block
The Read Function Block facilitates the transmission of a READ command to a specific temperature Controller (refer to section 3-3-4 Free Communication Blocks). The table below lists the specifics of this function block.
Start Trigger (BOOL) EN (UINT) StratWordOutput (UINT) StartWordInput (UINT) UnitNo (UINT) VarType (UINT) ReadStartAddress (BOOL) ENO (WORD) ResponseCode (DWORD) DataRead (BOOL) Busy
Description Reads data from a Temperature Controllers variable area.
Start Word Profibus output data Start Word Profibus input data Unit No of TC Variable Type Read Start address from TC
Response code from TC Data read from TC Busy flag
PRT1_SCU11_Read_Data.cxf Sends a Read Data command to the CS1/CJ1W-PRM21 PROFIBUS Master I/O addresses allocated to the targeted Temperature Controller, specified by the Unit No. The data to be read is specified by the Variable Type and the Read Start Address.
Timechart Start Trigger ON OFF ON OFF
PROFIBUS-DP Gateway to Host Link / Compoway-F
Omrons intelligent PROFIBUS gateway
Supports all Compoway-F-equipped products (temperature controllers, digital panel meters, etc.). Can be used in Host Link mode for connecting MCW151-E. Enhanced for use with E5AK/E5EK temperature controllers and OYMC Varispeed F7 inverters. Cost-effectively integrates existing instruments into a PROFIBUS network. Requires no complex protocol conversion writing. Has function blocks for drag-and-drop configuration. Connects up to 15 instruments to a single PROFIBUS point.
Model Number Structure
1: 1: SCU: PRT1: Version Wired Serial Communication Unit PROFIBUS Remote Terminal
Operating temperature: 0 to 55C Storage temperature: -20 to 75C Ambient humidity 10 to 90% (non-condensing) Conformance to EMC EN61000-6-2: 2001 and safety standards EN61000-6-4: 2001/CISPR11 EN61131-2: 2003, IDT Power supply +24 VDC (+10% / -15%) Current consumption 85 mA (max), 75 mA typical at 24 Vdc Weight 130 g Communication RS-485 based PROFIBUS DP Interface RS-422A / RS-485 RS-232C Peripheral Port supporting connection to CX-Thermo and CX-Drive Ambient temperatures
PROFIBUS Communication Specifications
Applicable standard Type Bus connector Bus termination Baud rates in kbit/s (auto-detect) PROFIBUS address range Communication cable Minimum slave interval Input data Output data Supported DP functions (as responder) EN 50170 vol. 2 (PROFIBUS-DP) PROFIBUS-DP Slave 9-pin sub-D female, RS-485 NOT included 9.6, 19.2, 45.45, 93.75, 187.5, 500, 1500, 3000, 6000, 12000 01-99 Type A (EN 50170 vol. 2) 0.5 ms 200 bytes maximum 200 bytes maximum Data_Exchange Chk_Cfg / Set_Prm Slave_Diag Global_Control (SYNC/FREEZE/ CLEAR) RD_Inp / RD_Outp / Get_Cfg OC_0780.GSD
PROFIBUS Cable Only use shielded twisted pair cable, line type A as specified by EN 50170 vol. 2 (e.g. Belden 3079A). The maximum cable length per bus segment (32 stations) depends on the selected communication speed
Baud rate (kbit/s) 9.6, 19.2, 45.45, 93.75 187.1500 3000, 6000, 200 100
RS-422A / RS-485 Protocol Specifications
Compoway-F devices supported K-Format devices supported Host Link devices supported Memobus devices supported Max. No of devices Connection type Baud rates in kbit/s Slave address range supported E5AN / E5CN / E5EN / E5GN E5ZN E5ER / E5AR E5AK / E5EK R88A-MCW151-E OYMC Varispeed F7 Inverter 15 RS-422A (4-wire) RS-485 (2-wire) 9.6, 19.2, 34.~ 15 (Address and selected PROFIBUS I/O module must match)
I/O Configuration Options
Type Basic Fixed Comm. Compoway-F Extended E5_N E5ZN E5_R Free Comm. READ WRITE OPERATE Basic Extended Special Operation R88A-MCW151-E E5AK / E5EK E5_N / E5ZN / E5_ Device Description 2 word out / 6 word in 3 word out / 11 word in 5 word out / 21 word in 5 word out / 4 word in 7 word out / 2 word in 3 word out / 2 word in 2 word out / 5 word in 4 word out / 5 word in 3 word out / 3 word in E5_N / E5ZN / E5_R 1 word I/O per loop
Host Link Memob Fix us Free
K-Format Free Fixed Comm Com
5, 10, 15 word I/O
Peripheral Port The Peripheral Port is intended to allow communication between Personal Computer based software (i.e. Thermotools) and temperature controllers. Use OMRONs CS1W-CN226 cable to setup the connection.
OYMC Varispeed Fword out / 3 word in Inverter 3 word out / 3 word in
Note: Different protocols can not be intermixed on the same network. Total maximum I/O size: 100 words I/O. Fixed Communication Blocks are pre-defined I/O blocks designed for the listed devices. Free Communication Blocks require programming in the PROFIBUS master to assemble commands. Memobus Fixed I/O modules access pre-defined F7 registers, Free I/O module allows specification of F7 registers.
R UN ER R
C OMM x10 x1 BF FC OM FER R
NODE ADDR ES S PER IPHER AL
24 V dc
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. P05-EN-02 In the interest of product improvement, specifications are subject to change without notice.
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