Comparing Values - Siemens SIMATIC S7-1200 Function Manual

3.10.5.12

Comparing values

You can use comparison functions to compare the following memory values of a parameter:
● Start value project
● Start value PLC
● Snapshot
Requirements
● There is an online connection.
● The technology object is downloaded to the CPU.
● The program execution is active (CPU in "RUN").
● The Parameter view of the technology object is open.
● The "Monitor all" button
Procedure
To compare the start values on the various target systems, follow these steps:
1. Click the "Selection of compare values" icon
A selection list containing the comparison options opens:
– Start value project - Start value PLC (default setting)
– Start value project - Snapshot
– Start value PLC - Snapshot
2. Select the desired comparison option.
The selected comparison option is executed as follows:
– A scales symbol appears in the header cells of the two columns selected for
– Symbols are used in the "Compare result" column to indicate the result of the
PID control
Function Manual, 03/2017, A5E35300227-AC
comparison.
comparison of the selected columns.
is selected.
.
Configuring a software controller
3.10 Parameter view
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