Setting of cartridge type
Use the mini-switches (3, 6) on the rear panel to set the P2 to MM or MC depending on the cartridge type. All switches must be in the same position. For high output MC cartridges set the P2 to "MM" position.
Adjusting the cartridge load
The P2 has two load terminals (5) where You can plug in RCA connectors with resistors or capacitors soldered in. Refer to the manual of Your cartridge to chose the correct impedance. MM: The capacitive load of a MM-cartridge influences the reproduction of high frequencies. First find out the recommended capacitive load (see manual of cartridge). Subtract from this value 150 pF for input capacitance of the P2 and cable. Solder the resulting capacitance into the RCA plugs connected to the P2's load terminals. Use only high quality polypropylene capacitors. MC: First find out the recommended resistive load (see manual of cartridge). Then see table below for additional resistance values to be soldered into the RCA plugs connected to the P2's load terminals. Use only high quality metal film resistors. Total load 100 resistor none Total load 10 resistor 10
Operating instructions Phono pre-preamplifier /equalizer P2

Technical data P2

Sensitivity Input impedance S/N ratio Frequency response Power supply Dimensions Weight
1,5 mV 47 kOhms/47 pF 79 dB /85 dB(A)
180V 1 kOhm / 1 nF 74 dB / 80 dB(A)
30 Hz 20 kHz +/- 0,3 dB (RIAA courve) 230V / 50 Hz / 3VA (AC adaptor) 145 x 48 x 70 mm 0,3 Kgs AVM Next Generation GmbH, Daimlerstrae 8, 76316 Malsch
Issued: 12/2007. Changes reserved without notice

Dear customer,

thank You for purchasing this AVM product. You own now a versatile, excellent sounding hi-fi component. Before enjoying music, please read this manual carefully. After that You will know how to use your new AVM component in the optimal way. Sincerely Yours Your AVM-Team

Rear Panel

Declaration of conformity (for EC only)
We herewith confirm, that the unit to which this manual belongs fulfills the EC rules necessary to obtain the sign
1 power supply connector 2 audio output 3 MM / MC-selector right channel 4 audio input from cartridge
5 load terminals 6 MM / MC-selector left channel 7 ground connector

Power supply

insert the supply plug of the AC adapter into the power supply connector (1). Connect the AC adapter to the mains outlet. Use only the original AC adapter, other adapters can damage the unit. CAUTION: In case of thunderstorm or if You leave the house for a longer time we recommend that You disconnect the unit from mains.
the necessary measurements were taken with positive results.

Connection to hi-fi set

NOTE: We recommend that You disconnect mains before You make the connections. Turntable: Connect the right and left channel of the turntable's output to the corresponding audio inputs (4) of the P2. Connect the grounding cable of the turntable or tone arm to the ground connector (7) of the P2 AVM Next Generation Audio Technologies GmbH, Daimlerstrae 8, D-76316 Malsch Website: www.avm-audio.com, E-mail: info@avm-audio.com Amplifier: Connect the audio output (2) of the P2 to any high level input of Your amplifier. Do NOT use the phono input because the P2 already amplifies and equalizes the cartridge signal to a high level signal.

REC 501 RP 570 Protocol Description
Technical Description Manual

1MRS 750751-MUM EN

Issued 97-09-18 Version A Checked SK Approved HM
Data subject to change without notice

Contents

Protocol RP 570.... 3 The lowest protocol levels... 4 Messages.... 9 Messages in direction FE - substation.. 9 Messages in direction substation - FE... 10 Address space.... 11 The highest protocol layers... 11 Retransmission of messages... 11 Priority levels.... 12 Polling principle.... 13 Protocol Implementation.... 14 Input Messages.... 14 Output Messages.... 15 Address Mapping of REC 501... 16 IDM Type Addresses... 16 AVM Type Addresses... 17 DVM Type Addresses.... 17 PCM Type Addresses... 17 GOM Type Addresses.... 18 SPM Type Addresses... 18 CBX Type Addresses... 18 TSTA Message Content... 19 TEV Message Content.... 19 FCOM Message Format... 19 Communication Parameters.... 20 Configuration Example... 20

Protocol RP 570

The RP 570 protocol is a high-level communication protocol used between the front-end computer (FE) and the substation to be controlled. The protocol is based on the low-level protocol recommended by IEC TC57, format class 1.2. The designation RP 570 is an abbreviation of
"RTU Protocol based on IEC 57 part 5-1 (present IEC 870) version 0 or 1. The RP 571 protocol is an extension of RP 570 and intended to be used in gateway-type devices. The RP 570 protocol is a standard protocol generally used by ABB in onelevel networks (Figure 1).

Gateway substation

RP 571

RP 570 Substation RP 570

Front-end computer RP 570

Substation

RP 570

RP 570 Substation

Figure 1. Network hierarchy according to RP 570 and RP 571 protocol specifications. Compared to the ISO/OSI reference model the RP 570 protocol fulfills the layer division of a stripped three-layer stack model as follows: RP 570 Physical layer Link layer Application layer ISO/OSI Layer 1, physical layer Layers 2 - 4, data link, network and transport layer Layers 5 - 7, session, presentation and application layer layer model. The purpose of the protocol is to offer communication services for this layer.
The other software of the device operates on the so called user layer located above the three-
The lowest protocol levels
The link layer determines the bit-level parameters. The protocol is an asynchronous protocol, in which the message is transmitted one byte at a time. The byte is specified as follows: - start bit - data bits - parity bit, even parity - stop bit - in total 11 bits.

Transmission sequence

The frame structure defined by IEC is used above the bit level. The frame consists of either a fixed or a variable number of bytes. There are two start characters: a decimal 16 for frames of fixed length and a decimal 104 for frames of variable length (Figures 2 and 3).
D7 (MSB) Start character (16 decimal) 0 Address (1st user byte) Function (2nd user byte) Checksum Stop character (22 decimal) 0

D0 (LSB) 0

Fig. 2: Frame of fixed length When a frame of fixed length is used, both the sender and the receiver know the length of the message. The frame contains two data octets,
Transmission sequence D7 (MSB) Start character (104 decimal) 1 Length Length Start character (104 decimal) 1 Address (1st user byte) Function (2nd user byte). 0<=N<=253 user byte Checksum 0 Stop character (22 decimal) 0 Terminator for communication unit. 0 D0 (LSB) 0 Header for communication unit
the address and a function code byte. Simple commands and acknowledgements, which do not contain real data, are of fixed length.

'LENGTH' information

Fig. 3: Frame of variable length A frame of variable length contains 2 - 255 data octets. The double length field of the frame header indicates the length of the data part. The
address and the function code at the beginning of the data part identify the message.
The receiver of the message is identified by the address, which has to be unambiguous and in the range from 1 to 255. The address zero is a special case recognized by each device in the network. The device does not respond to a zeroaddress message received. Function code XX100001 XX100101 XX101001 XX101011 Command RA (Request A) FTAB (Function TABle) RX (Request X) CBXC (Check Back before eXecute Command)
The function octet depends on the message direction. The task of the octet is to provide information about the type of message concerned. (Tables 1, 2 and 3). In addition, the byte contains encoded information defining the message.
Explanation of command Request of priority level 1 Process value setting Parameterization of substation Cancellation of command preselection Request for specific process value Preselection of 2-step command Control of internal substation functions Resetting of sequence number Request of priority level 2 Command to be immediately executed

XXX00011 SPM (Set Point Message) XXX00111 IHC (InHibit Command)
XXX01101 FCOM (Function COMmand) XXX01111 RSEQ (Reset SEQuence) XX110001 RB (Request B) XXX10011 IXC (Immediate eXecute Command) XXX11001 TSI (Time Sync Instruction) XX111011 EXC (EXecute Command) XXX11101 TDC (Transparent Data in Command Direction) XXX11111 SCI (Status Check Instruction)
XXX10111 GOM (General Output Message) General command for setting a process value Time synchronization Execution of 2-step command Transmission of transparent message Instruction for return of all data from substation, i.e. status/data check
Table 1: Function code in message direction FE - substation

Function code 00111110

Response message

Explanation of command

CCR1 (Cycle Complete Response, Sequence termination, highest priority priority level 1) CCR2 (Cycle Complete Response, Sequence termination, lower priorities priority level 2) EXRR (EXecute Response Restarted) EXR (EXecuted Response) NXR (Not eXecuted Response) TSTA (Terminal STAtus message) TEV (Terminal EVent message) CBR (Check Back Response) SYSM (SYstem Message) PRI (Polling Request Instruction) TDR (Transparent Data in Response direction) AVM 12 bit P1 (Analogue Value Message) AVM 12 bit P2, P3 (Analogue Value Message) AVS P1 (Analogue Value with Status) AVS P2, P3 (Analogue Value with Status) IDM P1 (InDication Message) IDS P1 (InDication message with Status) IDS P2, P3 (InDication message with Status) DVM P1 (Digital Value Message) DVM P2, P3 (Digital Value Message) PCM P1 (Pulse Counter Message) PCM P2, P3 (Pulse Counter Message) First message after restart Positive acknowledgement Negative acknowledgement Internal status of a device Change in internal status of a device Command preselection accepted Return of internal substation fault codes Polling start request using dial-up line Transfer of message transparent to protocol Analogue value of high priority Analogue value of lower priority data P2, P3 High-priority analogue value with status information Lower-priority analogue value with status information Indication data of high priority High-priority indication data with status information Lower-priority indication data with status information Digital value of high priority Digital value of lower priorities High-priority pulse counter value Lower-priority pulse counter value
IDM P2, P3 (InDication Message) Indication data of lower priorities
Table 2: Function code in message direction substation - FE

Function code 10000100

Response message ERMI (Event Recording Message for Instructions)
Explanation of command Time-tagged status data
ERMA (Event Recording Message Limit violation of analogue value, for Analogue measured values) with time tagging AVM, 12-bit, incl. CCR1 AVM, 12-bit, incl. CCR2 AVS, incl. CCR2 High-priority analogue value combined for sequence termination (only if RA) Lower-priority analogue value combined for sequence termination High-priority analogue value with status information, combined for sequence termination (only if RA) Lower-priority analogue value with status information, combined for sequence termination High-priority indication data, combined for sequence termination (only if RA) Lower-priority indication data, combined for sequence termination High-priority indication data with status information, combined for sequence termination (only if RA) Lower-priority indication data with status information, combined for sequence termination High-priority digital value combined for sequence termination (only if RA) Lower-priority digital value combined for sequence termination High-priority pulse counter value combined for sequence termination (only if RA) Lower-priority pulse counter value combined for sequence termination

10000110

AVS, incl. CCR2

10001100

IDM, incl. CCR1 IDM, incl. CCR2 IDS, incl. CCR1

10001110

IDS, incl. CCR2

10010100 10010110

DVM, incl. CCR1 DVM, incl. CCR2 PCM, incl. CCR1 PCM, incl. CCR2
Table 3: Function code in message direction substation - FE
In the message direction FE - substation the type of message is indicated with the D1 - D4 (F0 - F3) bits (Fig. 4, Table 1). The D0 bit is always one. Bit D5 (M/D) is a monologue/dialogue bit indicating whether the master device wants its message to be responded to or not. In D7
general, the message is in the dialogue mode. When the FE wants to send the same message to all substations at the same time, it uses the monologue mode. Then the substation address is zero.
D0 Function code S0 M/D F3 F2 F1 F0 1
Fig. 4: Function code octet in message direction FE - substation The D6 and D7 bits (S1, S0) indicate the sequence number. For dialogue-mode messages the sequence runs in the number order 0, 1, 2, 3, 0, 1, 2,. and the substation verifies that the next number of the sequence of the request message is in order. Should the sequence number be another than that expected, the substation repeats the last message it sent with the concerned sequence. For certain messages, the sequence can start from the beginning. In the monologue mode the sequence number is unimportant. In the message direction substation - FE the whole octet length is used for identifying the message (Fig. 5, Tables 2 and 3), except for the D0 bit, which is constantly zero. The table length is primarily increased by the fact that the same message appears twice according to the priority level ( priority in the table: P1, P2 and P3). Secondly, if the device has no new message to send after the present message, it can add the sequence-ending CCR1 or CCR2 character to the message. The message checksum is calculated as an arithmetic sum over the data part. Overflow is not considered in the calculation. Irrespective of the type of message, a message always ends with the end character 22 (decimal). D0 Function code F6 F5 F4 F3 F2 F1 F0 0

Fig. 5: Function octet in message direction substation - FE.

Messages

Above the messages to be used in the protocol have been presented in connection with the frame structure (Tables1, 2 and 3). In the protocol, the messages from the FE to the substation are grouped as - RTU messages - data request messages - process commands. The RTU message group includes a number of special messages for the control of the substation itself. - SCI, Status Check Instruction, is sent to the substation when - the FE wants to start polling the substation - the substation does not respond to the polling - the FE wants all possible information from the substation. After restart, the substation approves no other message. The SCI sets the sequence number to zero and so the first request message has the sequence number one. If the substation stops operating, and the communication with the FE is interrupted, the FE starts polling the concerned substation for status information with repeated SCI messages. The SCI can be received frequently, if there are disturbances on the channel and messages are lost. - RSEQ, Reset SEQuence number is a message to be used in test situations. This message forces the sequence to start from the beginning. The message arrives with the sequence number zero and the next message with the sequence number one. - FCOM, The Function COMmand message, is used for controlling the station itself. The substation incorporates a lot of functions, for instance, restart of the station, which can be commanded by this message. - FTAB, Function TABle, is intended to be used for parameterizing the substation. There is a great number of tables which include very detailed parameters for handling various process variables. All tables are sent with the same function code and they are identified with a special subcode. - TSI, Time Synchronization Instruction, synchronizes the calender time of the substation with the FE time. The handling time has to be compensated for in the substation by recording the local time when the receipt of the message is started and adding it to the calender time.
The messages in the direction substation - FE are divided into the groups - process data messages - time-tagged event messages - response messages - status messages - special messages.
Messages in direction FE - substation
Via data request messages the master requests the substation to send the new values of the process points that have changed. - RA, Request A, is the request message of the highest priority. The response to the message contains process data of the highest priority alone. - RB, Request B, is a normal request message used to poll the substation for new process data. - RX, Request X, the message refers to one process value. Process commands are used to instruct the substation to perform a specific action, which typically relates to the process to be controlled. - IXC, Immediate eXecute Command, is sent to the substation, when the FE wants the command to be executed at once. - CBXC, Check Back before eXecute Command, is the preselection of a command. In a two-step command the object is first selected (step one) and then the command is executed (step two). - EXC, EXecute Command, executes a given command in the preselected object. If no object has been preselected, the command will not be executed. - IHC, InHibit Command, allows the preselected command to be cancelled. - SPM, Set Point Message, sets the setting value for the process value. The setting value can be digital or analogue. - GOM, General Output Message, is a general command used for setting a digital or analogue object relating to the process. - TDC, Transparent Data in Command Direction, transmits a transparent message to the substation. This message may be a message of another protocol, encapsulated in the data part of the RP 570 protocol.

Messages in direction substation - FE
With process data messages the substation communicates the new values of changed process data. - IDM, InDication Message. One- and two-bit status information can be packed as 16-bit blocks in the message. - IDS, InDication message with Status. Oneand two-bit status information can be packed as 16-bit blocks in the message. In addition, the message contains status information about each bit. Status value one indicates that the status data is faulty or out of use. - AVM, Analogue Value Message, includes one or more analogue values. - AVS, Analogue Value message with Status, includes one or more analogue values. In addition, the message includes status information of each data element, block. - DVM, Digital Value Message, includes one digital value. - DVS, Digital Value message with Status, includes one digital value. In addition, the message includes status information of the data element, block. - PCM, Pulse Counter Message, contains the value of one pulse counter, and, in addition status data and other counter-related information. - TDR, Transparent Data in Response direction, is sent to the FE, when the substation wants to send general information to it, typically, a message in response to a TDC message. The message content is transparent to the protocol. Time-tagged event messages forward timetagged information about changes in process data. The messages are replies to the request messages RA and RB. - ERMI, Event Recording Message for Indication, transfers one time-tagged one- or twobit status data item after the change of a value. The message contains the new value. - ERMA, Event Recording Message for Analogue value, contains time-tagged information about exceeding of an analogue process data limit value. - ERMD, Event Recording Message for Digital value, contains time-tagged information about exceeding of a digital process data limit value.
By response messages the substation communicates that it has received and accepted the message sent. - CCR1, Cycle Complete Response of priority 1. The message is sent as a response to the FE, when the substation no longer has any messages of the highest priority level. The polling sequence ends with this message. - CCR2, Cycle Complete Response of Priority 2, is sent as a response to the FE, when the substation has no more changed process point values on levels below the highest priority level. A polling sequence ends with this message. - EXR, EXecuted Response, is given as an indication of positive acknowledgement. - EXRR, EXecuted Response - Restarted, is an acknowledgement of the first SCI message received after restart. - NXR, Not eXecuted Response, is a negative acknowledgement. - CBR, Check Back Response, is sent in response to an accepted preselection made by the FE. The message contains an identification of the command object. The most important status messages are TSTA and TEV. - TSTA, Terminal STAtus. This message is sent by the substation in response to an RA/RB request. The message may contain information about 16 internal status indications. - TEV, Terminal EVent, is also sent in response to an RA/RB request. By this message the substation reports on a change in the internal status of a device. The group of special messages includes one message: - PRI, Polling Request Instruction. This message is used when the device is connected to a public switched telephone network. The substation dials up the FE, when it has reason to communicate. Once the line is open the substation sends the PRI message without a preceding RA or RB request message. The FE identifies the calling substation by this message

Address space

Data to be read from the device is called blocks and data to be written to the device is called objects. Each message type has its own address space, the size of which, with the exception of the command object space, can be in the range Type of message IDM AVM DVM PCM CBX SPM GOM Format 16 bits 12 bits 16 bits 32 bits 1 bit digital value 15 bits analogue value 12 bits digital value 1, 2 or 15 bits analogue value 12 bits
1.255 (Table 3: Address spaces). It should be observed that the address space starts from the address one and not from zero as in C language indexing.
Possible address space 1255 indication analogue value digital value pulse counter control setting value general setting
Table 3: Address spaces The highest protocol layers Some rules for the operation of the protocol on the application layer have been specified for the highest layers of the RP 570 protocol. The proA message can be destroyed in the transmission channel so that it does not pass the check in the FE end or the substation end. Then the FE goes on requesting retransmission of the message, until the message arrives correctly or the maximum limit for retransmissions is reached. If all the messages received from the substation have been false, the substation is assumed to be out of operation. In the monologue mode, on the other hand, the FE does not necessarily notice that the message was not correctly received by the substation. The sequence number described before is used for the control of retransmissions (Fig. 4). If the FE does not receive a message that passes its checks, it repeats, with the same sequence number the last message sent, until the repetition limiter trips. After this the substation concerned is assumed to be out of use and the FE starts sending SCI messages to the substation. No other messages are sent to a substation being out of use. cedures for retransmission of messages, priority handling and polling have been separately specified. The substation stores the function byte of the last four messages correctly received, together with the sequence number and the whole message sent. The substation may receive a message in which the sequence number does not follow the sequence 0, 1, 2, 3, 0, 1, 2. In such a case the substation checks whether the same function byte has been stored with the sequence number of the received message and, if so, the stored message will be sent. The action requested in the message will not be repeated. If the substation receives a message that forces the sequence to zero, i.e. an SCI or RSEQ message - it destroys all the messages and function bytes stored. However, such event-type messages, which cannot be regenerated from e.g. the database have to be sent. Typically such messages are TEV, SYSM, ERMI and ERMA.

Retransmission of messages

Priority levels

The process data messages from the substation to the FE are identified by the type and the block number of the message. Each message is of a specific priority level: P1, P2 or P3. P1 is the highest priority level. The priority of the messages IDM, IDS, AVM, AVS, DVM and PCM is indicated by the function byte of the message (Fig. 4, Table 2 and 3). A priority defining field for the messages TDR, ERMI, ERMA, TSTA, TEV and SYSM has not been separately specified. The priority has been specified for each process data item. Messages sent in response to request message, i.e. IDM, IDS, AVM, AVS, DVM or PCM, are generated according to priority. TSTA and TEV messages are high-priority messages and always of priority level P1. ERMI, ERMA and TDR messages contain less important data and are of priority level P2. SYSM messages are of priority level P3. The FE uses priority data
and CCR1 and CCR2 response messages to specify the type of the next request message to be sent. On the basis of the same information it also decides which substation has to be polled next. Once the substation receives an RA or RB request message it has to check the station data and return a response message. This response message includes the process point value of the right process level, provided the value has changed. Only process points of priority level P1 are used to respond to an RA request message (Fig. 6), whereas messages of any priority level can be sent in response to an RB request message. (Fig. 7). A value that has already been sent after a CCR1 or CCR2 message was sent must not be used in reply to a request message. Of messages which always have a defined priority cannot be sent but one between CCR1 and CCR2 messages.

P1 cycle

IND P1

AVM P1

DVM P1
Fig. 6: Example of RA sequence

1 message from P2

P2 cycle

IND P2

AVM P2

DVM P2

ERMI/A

1 message from P3

P3 cycle

IND P3

AVM P3

DVM P3

Fig. 7. Example of RB sequence

Polling principle

The main principle of polling is that only data that has changed since the previous poll is transmitted from the substation. The FE uses a specific method of using RA and RB request messages and controlling a number of substations. The substation knows nothing but how the priority levels behave and how to respond to RA and RB request messages. RA sequence The RA sequence is a set of messages between CCR1 messages. The substation responds to an RA request message with one process data message of priority level P1. The process point must not be sent but once during a sequence. One TSTA and one TEV message alone may be sent during a sequence. The sequence has to be terminated by sending a CCR1 message or adding the CCR1 data to the process data message (Fig. 6). RB sequence The RB sequence is a set of messages between CCR2 messages. The substation responds to an RB request message with a process data message of any priority level. The process point cannot be sent in the process data message but once during a sequence. All the messages of priority level P1 and one from the next level are returned during the sequence. The sequence is terminated: - by sending a CCR2 message - by including CCR2 data in the process data message - automatically when one message of priority level P2 or P3 has been sent.

During the following sequence all the messages of the highest priority level have to be given, provided that some of the values have changed, and one message from one of the lower-priority levels. It is permitted to send just one ERMI, ERMA or TDR message from the P2 level. It is also possible to send just one message from level P3, if higher-level messages already were sent. Only one SYSM message is permitted during a sequence. During an RB sequence no CCR1 message can be sent (Fig. 7). Command messages The FE can send a command message to the substation between any request messages. Actions related to these have to be performed irrespective of polling sequence. For request messages the FE uses a special method trying to collect as quickly as possible the most important information from all substations. The substation has to be ready to receive any of the request messages, however, so that the sequence is completed first.
Protocol Implementation Input Messages
RP 570 protocol of REC 501 accepts following input messages: Command Meaning RA RB IXC CBXC EXC IHC SPM GOM SCI RSEQ TSI FCOM Request A. Request B Immediate eXecute Command Check Back before eXecute Command EXecute Command InHibit Command Setpoint Message General Output Message Status Check Instruction Reset SEQuence number Time Sync Instruction Function COMmand Only Function Command Number 1 and 4 accepted. 1 - Cold start 4 - Generate event message with PROM version Types - Basic Function Table, Indications NR 0x00 - Basic Function Table, Analogue Measured Value NR 0x0A, - Basic Function Table, Digital Value NR 0x14 - Basic Function Table, Pulse Counter NR 0x1E accepted. Fields Block NR, Priority and Blocked/Deblocked have a meaning, others are ignored. Only message class 6 accepted, transparent SPA. SPA message bytes cannot exceed 30 bytes. Notes Polls priority 1 blocks Polls all blocks Just for Reset module status, C. Block 5 of CBX type addresses Open/close select objects, V1-V2. Blocks 1 and 2 of CBX type addresses Execute selected open/close object, V3. Blocks 1 and 2 of CBX type addresses Inhibit selected open/close object, V3. Blocks 1 and 2 of CBX type addresses Object range 1-5 used Object range 1-11 used

Function Table

Transparent Data in Command direction
Table 5: Accepted Input Messages

Output Messages

RP 570 protocol of REC 501 uses following messages: Command Meaning CCR1 CCR2 EXR EXRR NXR CBR AVM DVM PCM IDM TEV Notes
Cycle Complete Response, Ends the poll cycle. priority level 1 Each block may be sent once in a cycle. Cycle Complete Response, Ends the poll cycle. priority level 2 Each block may be sent once in a cycle. EXecuted Response EXecuted Response, device Restarted Not eXecuted Response Check Back Response Analogue Value Message without status Digital Value Message without status Pulse Counter Message InDication Message without status Terminal EVent message Only Event Numbers 1, 6 and 13 used. SPA event E50 causes event number 1 FCOM #4 causes event number 6 NXR response also causes TEV 13. One TEV per poll cycle

Terminal STAtus message

Only TSTA ident 1 used. Bits D4, D7, D8, D9, D13, D14, D15 used. See Table 15. Only message class 6 used, transparent SPA. SPA message bytes cannot exceed 252 bytes Sent spontaneously without RA/RB poll, when the dial-up line is opened by REC 501 built-in modem (if PSTN line used).

TDR PRI

Transparent Data in Response direction Polling Request Instruction
Table 6: Outgoing messages used
Address Mapping of REC 501
The addresses for values to be read from the device are called blocks. Addresses for values to be written to the device are called objects.
The addresses are divided into four sub-areas. The data is arranged according to the data type so each message type has its own area. The following table collects possible message types, address ranges used and formats. Used address range 12, 111 Indications Analogue values Digital values Pulse counters Controls Setpoints General outputs
Data type IDM AVM DVM PCM CBX SPM GOM
Format 16 bit 12 bit 16 bit 32 bit 1 bit digital 15 bit analogue 12 bit digital 1, 2, 15 bit analogue 12 bit
Table 7: Address Map Data items type IDM, AVM, DVM and PCM are used for process data read from the device. The value is sent to the master device as an acknowledge message of the poll. The CBX type is used for commands given by the operator and SPM and GOM for parameters. IDM Type Addresses Note that AVM 12 bit is 11 bit for value and highest bit for sign. Value range is -2048.2048.
Block Bits in Priority Relevant SPA event or parameter block 2 0-1 2-2 Status of an object on channel 1 (value represents new 2-state status), I3 Status of an object on channel 2 (value represents new 2-state status), I3 Battery voltage, I11 Power supply temp, I9 (overHeat) Aux. Supply, I10 (acFail) Cumulative or wrap-around pulse counting on channel 1 (0=cumulative, 1=wrap), S12 Cumulative or wrap-around pulse counting on channel 2 (0=cumulative, 1=wrap), S12 Heating, I12 Local blocking in channel 1 (0=not blocked, 1=blocked) Local blocking in channel 2 (0=not blocked, 1=blocked) Input X2 (1/2) (0=not active, 1=active), I4 Input X2 (3/2) (0=not active, 1=active), I5 Input X2 (4/5) (0=not active, 1=active), I6 Input X2 (6/5) (0=not active, 1=active), I7 Input X2 (7/8) (0=not active, 1=active), I8

Table 8: IDM Type Addresses Note: If any of the inputs I3, I4, I5 is connected to operate as pulse counters, the application SW will mask the input.

AVM Type Addresses

Block Bits in Priority Threshold Relevant SPA parameter block (note 1) 0-12 0-12 0-12 0-2 5, V237 10, V238 10, V238 Temperature within enclosure, I1 Battery charging voltage, I2 Minimum battery voltage, V6 Delta for sending battery charging voltage, V238
Table 9: AVM Type Addresses General note: No scaling; always use 1 for block 1 and 10 for blocks 2 - 4. DVM Type Addresses Note 1: Threshold: delta for new value. If the change is smaller, nothing will be transferred.

Block 4 4

Bits in Priority Relevant SPA parameter block 0-7 8-15 0-7 8-15 0-5 8-13 0-7 8-2 Event mask for inputs, V155 Event mask for inputs, V156 Event mask for counters, V157 Event mask for outputs, V158 Event mask for open/close channel 1, V159 Event mask for open/close channel 2, V159 Delta for sending enclosure temperature, V237 Modem diagnostic interval, V224
Table 10: DVM Type Addresses PCM Type Addresses

Block 9 10

Priority Relevant SPA parameter Operation counter, channel 1, V5 Operation counter, channel 2, V5 Intermediate counter, channel 1, V11 Intermediate counter, channel 2, V11 Periodic counter 1, channel 1, V20 Periodic counter 1, channel 2, V20 Periodic counter 2, channel 1, V22 Periodic counter 2, channel 2, V22 Periodic counter 3, channel 1, V24 Periodic counter 3, channel 2, V24
Table 11: PCM Type Addresses Note: Blocks 5 - 10 will not be reported to the network controller in response to a polling message on normal sequence. They are reported only when requested by interrogation command SCI.

GOM Type Addresses

Object Relevant SPA parameter and notes 11 Reset minimum battery voltage, V7 (only binary 1 accepted) Reset pulse counter values on channel 1, V9 (only binary 1 accepted) Reset pulse counter values on channel 2, V9 (only binary 1 accepted) Cumulative or wrap-around pulse counting on channel 1, S12 (0=wrap, 1=cumulative) Cumulative or wrap-around pulse counting on channel 2, S12 (0=wrap, 1=cumulative) Event mask for inputs, V155 Event mask for inputs, V156 Event mask for counters, V157 Event mask for outputs, V158 Event mask for open/close on channel 1, V159 Event mask for open/close on channel 2, V159
Table 12: GOM Type Addresses SPM Type Addresses
Object Relevant SPA parameter and notes 5 Operation counter on channel 1, V5 Operation counter on channel 2, V5 Delta for sending enclosure temperature, V237 Delta for sending battery charging voltage, V238 Modem diagnostic interval, V224

Table 13: SPM Type Addresses CBX Type Addresses
Object Relevant SPA parameter and notes 5 Object on channel 1. Select, execute and inhibit. V1, V2, V3 and V4 Object on channel 2. Select, execute and inhibit. V1, V2, V3 and V4 Reset module status, C (IXC) (note 1)
Table 14: CBX Type Addresses Note 1: To be done via Event Handler. Clear event buffers E50, E51 (and the rest, too).

TSTA Message Content

Ident 1 is partly used by REC 501. Ident 1 Bit 15 Bit meaning and relevant SPA parameter 1 = At least one output relay is faulty; V= REC 501 is faulty. Checksum error in RAM, ROM or EEPROM; V= REC 501 is active. 0 = The unit has been subjected to automatic reset. Module status information, (note 1) 1 = REC 501 synchronised. At least one synchronisation message received (note 2) 1 = AC fail, REC 501 running on backup battery supply; I10 = = Battery low; I11 = 1 (low) 1 = No printer. Bit always set to 1.
Table 15: Module Status Information Note 1: Module status information to be read via event handler, events E50. Note 2: REC 501 will always report "not synchronised" after disconnecting the SPA-configuration cable. This is because the RP 570 protocol will be initialised on a change.

TEV Message Content

REC 501 uses only events number 1, 6 and 13. Event Meaning Additional info1 - info6
REC 501 restarted Program version info1 - info6 = program version identification. The whole version number is expressed as 1MRS11xxxxy, where 1MRS11 is fixed, xxxx is a four-digit number and y is the version letter. The last six characters, i.e. 1xxxxy are transferred. Command failed info1: 1 - object command 2 - not used 3 - set point command 4 - general output command info2 - info6: not used
Table 16: TEV message content. FCOM Message Format REC 501 allows the priority and blocking information of the AVM, IDM, DVM and PCM type process point to be changed. The function table includes several fields, but only those mentioned below have a function in REC 501, others are ignored: - FTAB type; identifies the table - block; identifies the target block - priority; new priority for target block, in range 13 - blocked; 1 if target block is to be blocked. All data types are blocked by the target block, also the IDM type.

Communication Parameters

Data Selection of active protocol (not valid at parameterization Station address Data transfer rate CTS delay RTS keep up delay Delta for spontaneous sending of enclosure temperature Delta for spontaneous sending of battery charging voltage
Channel Para- Data Values meter direction 0 V202 R,W 0 = SPA protocol 1 = remote protocol 0255 0.3; 0.6; 1.2; 4.8; 9.6; or 14.4 kBd 0255 = 02550 ms 0255 = 02550 ms 1.10

Default 0

V210 V211 V213 V214 V237

R,W R,W R,W R,W R,W

255 1.1 5

0.1.5.0 V dc

1.0 V dc
Table 17: Communication parameters Configuration Example The RP 570 protocol is to be used with a buildin modem. The REC 501 unit is to call the master once the temperature changes more than 4C. Parameters to be set Remote communication parameters Modem communication parameters Functional parameters RP 570 application layer parameters This configuration requires the following set-up: V202 = 1 Remote protocol to be used. V210 = 50 RP 570 device address 50. V211 = 9.6 Communication speed 9600 Bd. V220 = 1 Switched line in use. V221 = ATV0X0E0S0=2 This sets the modem initialisation string. Refer to the modem manual. V222 = ATH1d,1234567 This sets the dialling string. 1234567 is the phone number of the master station. V223 = ~~~+++~~~ATH Hang-up string. S5 = 80 S6 = 4 S8 = 8 1S11 = 60 V237 = 4 Default + input 4 pulse for counter. Input 5 is local / remote switch. Output 4 is heating. Counting period 60 min. Delta for spontaneous sending of enclosure temperature 4C. Further more, there is one pulse counter input with a counting period of 1 hour, local remote switch, heating and one object to control.
All other settings are default values.
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