CLX Comms stop after letting HMI sit idle

[mpshannon23]

I am using version 2.99w.  I am using the CLX comms driver.  When I start the HMI app I have comms.  If I keep activity on the screens by mouse clicks everything works ok.  If I walk away for  10 -15 minutes and come back the comms do not work anymore.

[Archie]

Is your PC going to sleep, hibernating, or shutting off the HDD?

[mpshannon23]

No I have all that turned off.  Even writes to the PLC do not work.

[Archie]

Running a Wireshark capture maybe the only way to see what is happening.

[mpshannon23]

Anything in particular that I need to look out for?  Not familiar with wireshark.  I'm new to C# and AHMI.  Have only used traditional COTS HMI software.

[Archie]

Start the Wireshark capture, then start AdvancedHMI. In the filter, you can put the address of your PLC as such   ip.addr==192.168.0.1

After it stops responding, stop the capture and save the file, then post it here.

[mpshannon23]

I have not seen this issue happen again.  I had RSLogix open and online at the time.  Maybe that caused it.  Good thing is the final HMI will not have anything Rockwell on it.

[Archie]

I haven't experienced it personally, but I have had reports of RSLogix stopping the AdvancedHMI communications.