Connect/communication issues with my C2-OPCUA module.

Bradford (Customer) asked a question.

October 6, 2025 at 2:41 PM

I hope I am posting this in the correct place.

I have followed the instructions to update the firmware on both my C2-01CPU and the C2-OPCUA. I have been using the recommended United Automation UaExpert to connect to it. I have set both to anonyms in an attempt to avoid certification issues.

I have enable the OPCUA server in the setup tab.

The error light on the module will eventually start blinking slowly indicating the application is disabled.

Any suggestions would be greatly appreciated.

Brad

C2-OPCUA

Top Rated Answers

Bradford (Customer)
6 months ago
This issue was resolved by adjusting the time and reloading the firmware.
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ADC Community_04 (AutomationDirect)
7 months ago
You should check Click system register SD308 for an error code, which may help determine where the issue is.
https://cdn.automationdirect.com/static/helpfiles/click/Click_Help.htm#110.htm?TocPath=Reference%257C_____23
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Bradford (Customer)
7 months ago
Thank you.

I checked and it is 0.

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ADC Community_04 (AutomationDirect)
7 months ago
If you want to PM me your project, I will take a look here.
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Bradford (Customer)
6 months ago
This issue was resolved by adjusting the time and reloading the firmware.
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Selected as Best
Shaneh72 (Customer)
4 months ago
I have enable the OPCUA server in the setup tab.

The error light on the module will eventually start blinking slowly indicating the application is disabled.

My SD308 error is error code 1: Undefined Error

How do I clear this error?
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