question

Steven Chen asked Jul 27 2022 at 2:30 AM Luciano Cavallero commented Aug 31 2022 at 12:23 PM

OPC DA output signal not received

Hello,

I have a setup that using OPC DA to connect PLC. It's fine to send input signal to PLC (sensor), but FlexSim doesn't receive output signal from PLC (control) even "Subscribe for Changes" checked.

I tried other tool to test signal transmission and IO are both okay.

Do I have wrong configuration? And how can I debug this?

Software Version:

FlexSim 22.1.3

· 5

Jeanette F ♦♦ commented · Aug 17 2022 at 5:23 PM

@Joshua S,

Are you able to help with this question?

0 ·

Luciano Cavallero commented · Aug 24 2022 at 10:15 AM

Hi Steven,

which OPC DA server are you using?

Could you share the emulation configuration are you using? May be that you are read a not-supported data type?

FlexSim OPC DA has been tested with standard product like KepServer OPC DA and work correctly with PLC Control Tag.

0 ·

Steven Chen Luciano Cavallero commented · Aug 30 2022 at 2:17 AM

Actually I use some kind of soft-PLC as OPC DA server, perhaps it's the reason why FlexSim can't receive signal from the soft-PLC. I will find some time to test connection on hardware PLC. Will update infomation here after test done.

0 ·

Luciano Cavallero Steven Chen commented · Aug 31 2022 at 12:23 PM

There is no reason why a OPC DA client (like Flexsim connector is) doesn't work with a soft-PLC DA server if the OPC DA prococol is correctly implemented.

It is possible to know which soft-PLC are you using?

0 ·

Andrew O commented · Aug 29 2022 at 6:45 PM

Hi @Steven Chen,

We haven't heard back from you. Were you able to solve your problem? If so, please add and accept an answer to let others know the solution. Or please respond to the previous comment so that we can continue to help you.

If we don't hear back in the next 3 business days, we'll assume you were able to solve your problem and we'll close this case in our tracker. You can always comment back at any time to reopen your question, or you can contact your local FlexSim distributor for phone or email help.

0 ·

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OPC DA output signal not received

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