jerrymahan007 (Customer) asked a question.
There are 3 CLICK PLC’s on the network.
The model numbers are C0-10DD2E-D (Firmware Version 2.10),
C0-11DD2E-D and C0-12DRE-D (Both Firmware Version 3.30).
My PC is using Win 11 with ClickPLC software 3.30
and my client uses Win 10 with ClickPLC software 3.30.
Everything is working on the C0-10DD2E-D PLC with Firmware Version 2.10.
When my client has their program opened I can connect to their PLC and see my clients program and even activate Overrides on the program.
I cannot see the programs on the C0-11DD2E-D and C0-12DRE-D (Firmware Version 3.30).
When my client has their program opened I cannot connect to their PLC.
When I try to connect a PTC-019 fault appears: (Cannot log into PLC. There is already an active session detected with the PLC.)
It sounds like you are trying to open two different programming sessions to one PLC at the same time. I wouldn't expect this to ever work. Can you use a remote desktop session and observe their PC desktop? That would seem more practical.
Thank You responding on Fathers Day!
"It sounds like you are trying to open two different programming sessions to one PLC at the same time. I wouldn't expect this to ever work."
The thing is, it does work on the C0-10DD2E-D PLC with Firmware Version 2.10.
I do like your suggestion about using a remote desktop session. I will give that a try.
Thank You so much for your input.
Version 3.00 (and later) implemented Session Security so that only one Programming Software connection is allowed at a time.
Thank You for your response! You solved the mystery of why the older software could achieve what the brand new software could not.
There are PLC's that allow multiple connections so multiple people can work on different areas of the program, however CLICK does not allow this and likely doesn't have the infrastructure needed to facilitate it, nor would I expect it to for its price/target market.
If the customer needs a constant connection to the PLC with their IDE (not sure why they would), then the best option is to use appropriate methods to remote into their PC as bcarlton mentioned. If they only occasionally need a connection or accidentally leave it connected, some simple communication with site personnel would mitigate things.
According to ADC TechnologyGroup_01 and my own experience, Click PLCs had the capability for multiple connections but that was discontinued with Version 3.00.
The reason why I need this capability is that I am trying to train technicians remotely and I need to help my trainees with their programs in real time.
The solution to my predicament appears to be remote desktop as bcarlton had mentioned earlier. I have tried it and it's giving me the results I need.Thank You bcarlton!