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The above-mentioned method allows the starting of several processes D2000 KOM with identical names at the same time.
The individual processes will execute the following actions according to their status:
- Active KOM process - executes an active capturing of data from telemetry and sending them to the system. Only one process can execute this action.
- Passive KOM process - generally, it does not interfere with telemetry, i.e. it does not open the communication channels and does not send any data. In some cases, however, it can watch passively the communication of the active KOM process with the devices. More information is in the document SerialOverUDP Device Redundant and SerialOverUDP Line Redundant.
Note: The /DBSH startup parameter for Serial, Serial Line Redundant, and Modem communication lines causes the serial port to be closed if the D2000 KOM process is connected to the SBS Server or if the D2000 KOM process becomes a passive instance. See note for more information.
The activeKOM process becomes the one that logs in connects to the D2000 Server first. Other processes are passive KOM processes. The active KOM process can be set with the command INSTANCE SET ACTIVE. In addition, an instance can be set as the preferred with the INSTANCE SET PREFERRED command, so that it becomes active immediately when it connects to the D2000 Server.
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