Unable to communicate with PVP+ 1000 serial DF1

[LowRange]

We have an HMI that when an application is loaded the HMI it asks if you want to change the terminal configuration settings to match the applications configuration settings yes/no. If yes is pressed the terminal will no longer communicate with the PLC and the fix is to go back into the terminals Networks and Communication tab and set auto-configure from false back to true. Re auto-configuring the terminal is normally the remedy to this problem but something has gone a bit wrong today.

Tonight I discovered that this HMI is again not communicating with the PLC. Assuming the usual I go into the Networks and Communications settings to set auto-configure to True and then run the application only to discover that it still will not communicate. After a bit of troubleshooting, here is where I am at.

What I have:

PVP+ 1000 2711P-T10C4A1 and an SLC 5/04 talking through RS232.


What I can do:

I can communicate with the PLC through RSlinx on RS232

I can run the application on the laptop with 'test application' and communicate with the PLC

What I can't do:

I can't communicate between the HMI and PLC

I can't see the HMI in Factorytalk ME

I can't auto-configure (fails) a DF1 driver in RSlinx when connected to the HMI through RS232

 

[DwSoFt]

Your application project doesn't have the proper settings set up in it. When it asks you this it is getting it from the project. U can transfer projects with the USB stick as well

 

[LowRange]

I still don't understand why the HMI and PLC cannot communicate. They were and then they stopped. I don't have a spare pass through RS232 so I'd have to borrow one off another production line to troubleshoot the cable. I'm off to borrow a cable I suppose.

 

[Firejo]

How is the PLC's channel 0 port configured and how is the communications port on the PV configured?

 

[Crammed77]

I have a few panelviews talking serial DF1 to the processor. I never use the autoconfiguration setup and I always manually configure everything through the manual configuration on the communications tab in FactoryTalk View ME. I also will ensure that I do not copy the config across from design to runtime, rather I will manually configure the design tab as well. I have found this setup to be a bit hit and miss, but the more regimented I am in this setup, the more success I have had in setting up the comms.