Technical data

Testing with the Variable Table
20.4 Entering Variables in Variable Table
Programming with STEP 7
446 Manual, 05/2010, A5E02789666-01
20.4 Entering Variables in Variable Table
20.4.1 Inserting Addresses or Symbols in a Variable Table
Select the variables whose values you want to modify or monitor and enter them in the variable
table. Start from the "outside" and work "inwards"; this means you should first select the inputs and
then the variables that are influenced by the inputs and which influence the outputs, and finally the
outputs.
If you want, for example, to monitor the input bit 1.0, the memory word 5, and the output byte 0,
enter the following in the "Address" column:
Example:
I 1.0
MW5
QB0
Example of a Completed Variable Table
The following figure shows a variable table with the following visible columns: Address, Symbol,
Display Format, Monitor Value, and Modify Value