MICROTEL 700 communication protocol
Supported device types and versions
Communication line configuration
Communication station configuration
Alternative communication path
I/O tag configuration
Redundant system
Errors and problems
Detail implementation of protocol
Tell commands
Literature
Changes and modifications
Document revisions
Supported device types and versions
...
| Key word | Full name | Description | Unit / size | Default value |
|---|
| Scan | Permanent passive mode (Scan only) only for data reading (mode 2). | YES/NO | NO |
| Moxa Timeout | Setting of timeout for change to other communication device on SerialOverUDP Device Redundant line. If the valid data are not received from communication device till timeout, the other device is used (backup or primary, if it is configured). | 20 | sec |
...
| Key word | Full name | Description | Unit / size | Default value |
|---|
| Retry Count | Number of retry calls when error in communication occurs. | - | 2 |
| Retry Timeout | Delay between retry call if a communication error occurs. | ms | 500 millisec. |
| Wait First Timeout | The first waiting for a response after sending a call. | ms | 300 millisec. |
| Wait Timeout | Delay between the readings of a response until it is completed. | ms | 200 millisec. |
| Max Wait Retry | Number of retry response reading until it is completed. | - | 20 |
| Module Count | Maximum number of modules that are required in one call. The value must be in the range of 1 to 5. If not, the default value is used. | - | 5 |
| Inversed Modules | An analyze of sectors that have been changed (the function COS - CHANGE OF STATE) is done in inverse order: bit 0 LSB - modules 0..7,
bit 1 - modules 8..15, ...
bit 7 MSB - modules 56..63. | YES/NO | NO |
| Alternative Path Host(s) 1, 2 | The configuration of so-called alternative communication path.
It is IP address, hostname or several IP addresses/hosts separated by commas or semicolon. The total number of alternate communication paths entered under these parameters is 12.
Empty value means than an alternative path is not used. |
|
|
| Alternative Path Port 1,2 | UDP ports to which data will be sent when using the alternative communication path. |
| 0 |
| Alternative Path Retry Count | Number of retry call if the alternative communication path is used. | - | 2 |
| Alternative Path Use Timeout | After the elapse of the defined time since the start of using alternative communication path, the viability of communication through standard path is tested again according to the communication line configuration.
Value 0 turns off the testing (communication uses an alternative path while it works).
Note: The parameter value also changes the order of trying the alternative communication paths in case of their malfunction. If the value is nonzero, the standard communication path is always tried after an alternate communication path. If the value is zero, then all alternative communication paths are tried first and only then the standard communication path. | sec | 600 |
...
The value reading of the modules. It optimizes the reading of the configured (configured only!) adjacent modules en bloc until completing of MODULE_CNT by one datagram.
COMMAND 7 - High Security Relay
...