S7-300 send data to PC with Ignition/OPC-UA

Is ‘S7 300 IP 125’ the name of the device as you’ve set it up in the Ignition gateway? If not, that’s what is supposed to go in that section.

Additionally, DB7,DBX0.0 is not a valid address. What address are you trying to read? Have you read the user manual section on Siemens addressing? inductiveautomation.com/support/ … ssing2.htm[/quote]

Yes that is the name in Ignition gateway.

Yes I read the user manual, I am trying to read the first bit of the DB7. It is a boolean data type. could be DB7,DBX0?

Thanks for your fast reply.

Okay, I get it, with DB7,X0.2

But I already create other tags, the same method, but they not appear on the tag tree, also if I try to create them again, a error window says that the tag is already created with this name.