ErikSN

Hi, I was wondering if there is a way to limit the number of allowed on-line connections at a time to a PLC? Like can you somehow set in the PLC parameters that only 1 'connection' can be on-line in the device at a time? Thanks Edit: I'm referring to connections from the TIA portal - not HMI / ethernet connections and so forth

Joe E. Thanks! Those seem like good options to confirm that comm between PLC and SCADA are up. Will look into it.

Hi, I was wondering if it's possible to detect a changed/updated value in a data block even if the value remains the same as before. The reason I ask is because we have a SCADA system providing a setpoint for a temperature every x minutes. The value of the setpoint can remain unchanged for hours even days. However we still want the PLC to be able to detect wheather it's setpoint is updated every x minutes or not. Any good solutions? Thanks!

Hi, I was wondering if anyone have experience with Tia Portal Step7 v.14 and Step7 Classic v.5.5 located on a remote server? We have several persons working on our PLC's. As it is they all have their own PC with Step7 + licenses. We were thinking about moving the software environment onto a server to reduce license and maintenance costs. Does anyone else have this setup? If yes do you have any tips or comments? Pros/cons? I already know now that you cannot autodetect/configure new devices from a remote server as the Step7 detection protocol doesn't work through a router. We can live with that. We need both TIA Portal and the Step7 Classic on the same server. Thanks