Can you provide a case of using OPC DA?

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liu Y2 Suspended asked Jun 19 2019 at 8:41 AM Joshua S commented Jun 15 2022 at 3:09 PM

Can you provide a case of using OPC DA?

I am using MatrikonOPC connect to flexsim, the connection is successful,but I can't receive any data.

flexsim2019.0.0_64bit

plc connection problem

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Answer 1 · 2019-06-19T15:18:28Z

Joshua S answered Jun 19 2019 at 3:18 PM Joshua S commented Jun 15 2022 at 3:09 PM

Here is an extremely simple example to test your connection, it gets the sin tag value from the server and prints it out in the console. I'm using a different server, but you should be able to point to the right tag on your server. This should be a baseline test to see if you can read tags in general.

opc-test.fsm

opc-test.fsm (99.8 KiB)

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liu Y2 commented · Jun 20 2019 at 5:27 AM

I use other OPC simulator can receive data，thank you！

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Cass Z commented · Jun 15 2022 at 2:41 PM

Hi, @Joshua S I am currently trying to get the Allen Bradley connect to FlexSim, it seems like there are some bugs for the AB protocol, so I am trying to use OPC DA, my question is how do you identity the server name of the OPC DA? I have my RSLinx locally running.

Thank you

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Joshua S Cass Z commented · Jun 15 2022 at 3:09 PM

You will need to have an OPC DA server running, and then the browser button next to the Server edit field will display the server you are running. I have noticed that sometimes there are multiple data accesses and each one of those can be expanded to select your server. You might need to try a couple of the data accesses to connect to your server, I've had to do that in the past.

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