Protocols & Communication

compared with
Current by Stefan Schlatter
on May 21, 2010 05:55.

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* When using TCP it is important to consider socket inactivity timeouts. If the system is configured for polling at a rate of more than 10 seconds, then it is likely that the RTU will close sockets which will fail comms. It is important in this case to either:
** increase the inactivity timeout in the RTU
** use the Ethernet keep alive poll in the DNP3 outstation objects in {{product}} ClearSCADA
** Reduce the polling so that some comms happens to the outstation before it times out the socket.
** The last two options will increase the overall load on the network.