Hello, I have a question. I purchased a CPU 1200 (order code 6ES7 212-1HE40-0XB0) V.04.05.02, to use it in an OPC UA communication: which version of TIA should I use? I have a TIA V16, but in the HW the version does not go beyond V.4.4.

Hello,

Please have a look at the following links:

Modeling the S7-1200 OPC UA Server interface in TIA Portal

and

How do you load a project into an S7-1200 CPU if its firmware version cannot be selected in the hardware catalog of STEP 7 (TIA Portal)?

(It is possible to use TIA Portal v16 and use in your project CPU1200 fw 4.4)

Best regards,

Wizard