Unsolicited message configuration

In order to support unsolicited messages from the devices, the MBTCP Communication Driver by default listens on Ethernet port 502.

To facilitate testing with software simulators residing on the same machine, listening on this Ethernet port can be disabled by setting the EnableListeningPort property in the TCPIP_PORT hierarchy of the MBTCP Communication Driver rule file (DASMBTCP.aarul).

With unsolicited messaging enabled (the default), you can use the Device Groups dialog to configure unsolicited messaging as a Device Group parameter for the PLC nodes directly connected to the TCPIP_Port node.

For the step-by-step procedure to configure the Device Group to receive unsolicited messages, see Device group definitions.