Racking my brain on this one.
Set up a primary and a standby server on a project with 7 I/O devices. A little oddity here - all on the same IP address, using different ports. Modbus RTU over UDP protocol.
I've done just about the same thing before on at least 6 systems, and never had a problem.
Primary server works fine..
Communicates everey second or so
If I shut off the primary server, the standby communications rate is about every thirty seconds. Getting #BAD for many of the variables - but not all.
And they switch around -sometimes #BAD and sometimes a good value.
Switched IP Addresses, and the problem follows the standby computer.
Configurations look different where they should.
I'm not 100% clear what the purpose of the port number in the <componenets and mapping><Ports> column is used for. After searching the knowledge base, it seemed appropriate that they were the same for the primary and the standby (not to be confused with the <IODevices><Number> entry.
NO port level control is being done.
Not sure where to go from here. Any suggestions?
