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want to read values from another CPU (S7-1200) by OPC-UA

1/26/2024 9:06 AM	Rate (0)
milladt Member Joined: 10/30/2018 Last visit: 10/27/2025 Posts: 18 Rating: (0)	Hello to all I used S7-1500 (512-1CK01-0AB0) in my project. I want to read values from another CPU (S7-1200) by OPC-UA. I wrote the program using library blocks 1- OPC UA Connect 2- OPC UA NamespaceGetIndexList 3- OPC UA NodeGetHandleList 4- OPC UA ReadList 5- OPC UA Connection GetStatus 6- OPC UA Disconnect When the program runs, the values are all read and live, but after a period of time between 15 minutes and 1 hour, the values are frozen. In this case, none of the blocks have Error and their Status value 16# is 00700000. What suggestions do you have to fix this problem? Kind regards M.Tavasoli ------------------------------------------------------------------------------------------ Split from Errors during the communication through an OPC UA Server from a 1515F-2 PLC Client.
	Last edited by: Jen_Moderator at: 01/29/2024 08:25:59 New subject after splitting
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1/31/2024 10:33 AM	Rate (0)
Murof Platinum Member Joined: 8/3/2009 Last visit: 1/9/2026 Posts: 16629 Rating: (1944)	Hello milladt Which TIA Portal Version do you use and which Firmware Versions do the PLCs have? Do you get any error in the Diagnostic buffer of the PLCs(Server and Client) ? Use a OPC UA Test Client for example UAExpert. Check if you can reach still the OPC UA Server after this issue Bye Murof
	If this Information really helps, you could use the Rate function
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