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Open Discussion / Re: OPC Server
« on: March 21, 2018, 01:00:50 PM »Great, so the Pi you are referring to is not really a "Pi". Maybe a sketch would be helpfull
This is the Pi I have been referring to:
https://www.osisoft.com/pi-system/
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Great, so the Pi you are referring to is not really a "Pi". Maybe a sketch would be helpfull
While the Pi OPC Interface is running, no other clients can connect effective blocking Phoenix/AB connection.This is the part that I guess I am not clear on. Does the Pi software have an OPC server that you can start and stop, which then interferes with other OPC servers? Or does it just block communication between Pi and the PLCs?
Sorry for all the questions, I'm just tryingto make sure I have somewhat of an understanding of the system. I watched the intro video to the Pi software which made things a little more clear.
On the approach you are using, there is a component called the ComBridge that encapsulates this functionality so you do not have to write the code.
Just to throw this out there, shouldn't these both be declared as Integer (not that it wouldn't subscribe because of it but it might not unsubscribe properly):
Private SubscriptionID1 As Integer
Private SubscriptionID2 As Boolean
Also, even though I don't really understand your setup, shouldn't you be able to use the AdvancedHMI to pull data from the Phoenix Contact OPC Server and possibly communicate with your PLCs (via this same server, if the server is already communicating with your Phoenix PLCs)?
Where does RSLinx come into play?