Changing a bit with plc and hmi

Let's say you want to store an integer on MW0.

Inside the plc you can use the MOVE-function or use the result of a calculation.

With WinCC-flexible you can create a tag e.g. 'name_value' or you can make use of the symbolic names of the plc-program but then you need to work integrated between WinCC-flex and STEP7.

Go to your screen and make use of a IO-field (it shoudl be on the right side of the screen).

In the TAB 'General':

Define the 'Type-mode' as input or input/output.
Define the 'process-tag' as 'name_value'.
Define the format-type 'decimal'.
Define the format-pattern according on how big your value is.
 

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