Severe error in logviewer when starting two modbus driver

[rajkumar.krishnan]

Dear All,

I am getting an issue in log viewer

If two modbus drivers are started, and configured to use the same TCP port, the error message is very misleading:

WCCOAmod (2), 2014.07.18 16:22:24.594, IMPL, SEVERE, 54, Unexpected state, ModPrLayer, startServer, Cannot start Server
WCCOAmod (2), 2014.07.18 16:22:24.614, IMPL, WARNING, 54, Unexpected state, ModPrLayer, startServer, Under UNIX root privilege is required to open ports

[leoknipp]

Hello,

this error can occur when the port is already in use which is defined for the modbus-driver. The text is a bit misleading in this case.
Please define another (free) port for the second modbus driver.

Best Regards
Leopold Knipp
Senior Support Specialist