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CommandHMI with Siemens S7-1200

TIA Portal

Some versions of the S7-1200 firmware have a security setting to allow or disallow put-get communications. Put-get communications must be allowed.

Port 102 must be used

There are two methods of accessing data: “symbolic” and “absolute”.
In the case of a link with S7-1200 data blocks: the data blocks do not have to be defined on an optimised data structure. Access to M-bits (structured in bits/word/word size) will not be a problem.


IP Address Setting



Port 102 must be used

Bit Switch M2.0

Bit Lamp Q0.0