Hello experts !

I need some help with following problem – I have three PC-s running standalone InTouch scada connected to PLC S7-315 over CP 343-1 Lean. If I connect two PC everything work fine, but if I add third PC to network, second PC looses communication to PLC and third starts to work.

Configuration of DASSIDirect is:

Local TSAP

1 1

Remote TSAP:

Remote rack no: 0

Remote slot no: 2

Connection Resource: 4

Reply timeout: 10000ms

Connection timeout: 30000ms

And it is the same for all three PCs.

If you need any additional information don’t hesitate to ask.

Any help will be appreciated.