7/21/2021 5:50 PM | |
Joined: 4/23/2015 Last visit: 6/12/2023 Posts: 168 Rating:
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Dear all, could please someone help I have to connect S7-1200 via OPC UA (from OPCUA client) and read user data structure First I haven't had no S7-1200 in hands and used for development an S7-1512SP. And I have read those data with no problem. Please note attached is a screenshot from UaExpert program. You can see the data I read is SIGNALS_2_SCADA.ARR, the UaExpert can read it you can see the only tag I read is my user structure and the "statuscode" is "Good" When I obtained S7-1200 which is actually to be used in my project, I've just transferred my PLC program and my data structures over there. Of course, in this case I've created OPC UA server interface instance and attached my data block to it. But the problem is UaExpert cannot even add my variable to monitoring, and returns error "BadAttributeInvalid", please note another screenshot. I've also found and tried as well other two OPC UA clients, and behaviour is the same - all of them read correctly data from S7-1500 and cannot read data from S7-1200 More over, please note another screenshot from UaExpert, even when I just have connected to S7-1200 and read no tags, anyway UaExpert reports of periodical data read errors. What do I do incorrectly? Can someone please help. Thank you Attachment1.zip (232 Downloads) |
7/29/2021 11:18 PM | |
Joined: 4/23/2015 Last visit: 6/12/2023 Posts: 168 Rating:
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Dear all, please help Did someone try to read/write any user-defined type data structure via OPC UA from/to S7-1200? |
9/22/2021 5:38 PM | |
Joined: 4/23/2015 Last visit: 6/12/2023 Posts: 168 Rating:
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Dear All, the problem still persists. Any help is pretty much appreciated |
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