How to make function block in PLC using codesys v3.5?

[obi87]

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Hello

I have to make function block in PLC using codesys v3.5 and have to map the variables in OPCUA server. I am new with PLC and needed help to fulfill this task.

Thanks a lot
Obaid

 

[HausSPSler]

Hi,

-add a pou (function block) -> rightclick on Application
-use your new functionblock - add instance to a prg pou (for example PLC_PRG) and call it
-add Symbol configuraion (tag OPCUA the setting), specify which variables you want to publish from your functionblock (instance)
-download it to the plc and start it

connect with OPCUA Client - browse the plc - now you should see our publsihed OPCUA symbols

There is an Example Project here if you are using CODESYS on Raspberry Pi plc. (If you have a different plc type, just open this an rightclick in the device tree -> update device to your plc type)

"c:\Users\<yourWindowsUsername>\CODESYS Control for Raspberry PI\3.5.10.20\Examples\OPCUA.project"

Best Regards

 

[obi87]

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Hi
thanks for the feedback. I will gonna try this method and comeback If I face some problem.

Thanks a lot
Obi