Connecting to ModBus


I am working in an environment with several applications, each connecting to the same modbus network.

My question is whether it is wiser to create a separate connection for each application, or point them all using the same connection.

It would be a little more convenient for us to use different connections, because the PLCs are being planned to be swapped and we could just re-point the connections as they come, but on the other hand we are concerned about what overhead will come with each connection.

Any advice appreciated!



I’m not really sure what you are asking. Ignition requires that you make a connection to each Modbus device that you want to interact with. Any applications (other software?) would have to make their own connections to the devices.