L&G Toccata protocol
Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Literature
Changes and modifications
Document revisions
Supported device types and versions
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This protocol supports the following Landis&Gyr devices:
Table 1
Version | The version of the software in the device | Protocol version |
|---|
| PRU1.64, RWP80 |
|
| TOCCATA1 V.0 |
| PRU1.64, RWP80 |
|
| TOCCATA1 V.1 |
| PRU10.64, PRV2.128 |
|
| TOCCATA2 V.0 |
| RWP80 | AZA v. 07.10 | TOCCATA1 V.2 |
| Kotva |
|---|
| komunikacna_linka |
|---|
| komunikacna_linka |
|---|
|
Communication line configuration
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- Baud rate and transmission parameters according to a type of communication.
- 2400 Bd, 8 dat. data bits, no parity, 1 stop bit in direct connection point-point (TOCCATA1 V.0 and V1).
- 9600 Bd, 8 dat. data bits, no parity, 1 stop bit in direct connectionpoint-point (TOCCATA2 V.0).
- If devices communicates communicate via the communication concentrators (KPX, radio modems), the transmission parameters are defined in accordance with depend on the particular case.
| Kotva |
|---|
| komunikacna_stanica |
|---|
| komunikacna_stanica |
|---|
|
Communication station configuration
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- Communication protocol: L&G TOCCATA
- Station The station address is in the range of 0 up to 255 in decimal format. It is used only when communicating via the communication concentrators. In the case of direct communication, the address is ignored.
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You can define the following parameters:
Table 2
Key word| Keyword | Full name | Meaning | Unit | Implicit value |
|---|
| Retry Count |
Number of repeat calls | The number of request retries if the communication error occurs. | - | 1 |
| Retry Timeout |
Delay | The delay between repeating |
the call | the request if the communication error occurs. | ms | 1000 millisec. |
| Wait First Timeout |
First delay of response reading | The first waiting before reading the response after the |
call | request is sent. | ms | 300 millisec. |
| Wait Timeout |
Delay reading the it | the response is completed. | ms | 300 millisec. |
| Max Wait Retry |
Number retry | response reading retries until |
it | the response is completed. | - | 12 |
| Wait Before Request |
Delay that | The delay that is used before each request. | ms | 0 |
| KPX Route | The communication via the communication concentrator. The station address is used. | YES/NO | NO |
| Maximum PA Items |
Maximum | The maximum number of PA data in one data |
blocks| block. You must always define an even number. If communicating via concentrator, the maximum number is 10, otherwise, it is 24. | - | 10 |
| Log Events | It allows |
to save | saving the text messages to TRACE.LOG from the device. This file is in the current working directory of the communication process. | YES/NO | NO |
| KL Read Delay |
Time | The time period to obtain the values of KL data. KL data are read when starting the communication process and again after elapsing of the KLRD period. | min | 30 minutes |
| Send ACK | Sending ACK message (DLE-ACK) after the D2000 KOM receives the proper packet. A direct connection requires to set YES. Connection via concentrator (KPX=YES) requires to set NO (speeding up of communication). | YES/NO | YES |
| Send Enhanced ACK | Sending enhanced ACK message with station address (DLE-ACK-CR-LF-StationAddress-CR-LF) after the D2000 KOM receives the proper packet. | YES/NO | NO |
| PRU Version | TOCCATA protocol:- value 0: TOCCATA1 V.0
- value 1: TOCCATA1 V.1
- value 2: TOCCATA2 V.0
- value 3: TOCCATA1 V.2
| 0, 1, 2, 3 | 0 |
| PA First | At starting the communication, it gives priority to reading the PA instead of KL parameters. KL parameters will be read after PA ones are received from all stations. | YES/NO | NO |
| Full Debug | Activation of the debug information about received values. | YES/NO | NO |
String A string containing the protocol parameters is defined as follows:
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If there is used a keyword with an invalid value in the initialization string, there will be used corresponding default value according to the table 1.
I/O tag configuration
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I/O tags: AI, AO, CI, CO, DI, DO, TIR, TOR, TIA, TOA.
In the configuration you must define the following optionsparameters:
- point type PA or KL
- address (for KL it is a physical address in the device)
- size of the data block of a given point (for PA it is always 0)
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