Which restrictions you have to consider by the OPC UA server of S7-1500 CPU with the firmware V2.0.x or V2.1.x in compatibility mode of firmware V2.5?
The sampling interval of 50ms is currently not usable when operating a CPU configuration with firmware V2.0.x or V 2.1.x in compatibility mode of firmware V2.5. The smallest possible sampling interval in this case is 100ms.
you will find in the FAQs:
- Which system boundaries contains the OPC UA server of the S7-1500 with the firmware V2.0.x and V2.1.x?
- Which possible causes and corrective actions are there by the occurs status codes in OPC UA client when using subsciption?