I created an OPC tag from the OPC server on an S7-1500 CPU. The OPC item path to the tag I’m reading is below. I can’t find anything in the forums or manuals that describe why the item path has a internet address to siemens.com. Can someone explain this please?
- In the gateway I only have the CPU OPC server configured, the gateway does not have a device connection to the CPU. I thought you needed both but it seems that isn’t necessary. Any thoughts?
- The manual states the gateway can’t read optimized data blocks yet the global data blocks in my PLC are optimized. Any thoughts?
- The manual states the you have to provide direct addressing for PLC tags based on memory area and offset…this is a VERY OLD method…I’m able to look at the tags in the data blocks just like I do when working in TIA Portal. Any thoughts?
Responses are very much appreciated!