Siemens SIMATIC S7-1200 Function Manual page 61

Defining new start values
To define start values for parameters in the Parameter view, follow these steps:
1. Open the Parameter view of the technology object.
2. Enter the desired start values in the "Start value project" column. The value must match
the data type of the parameter and must not exceed the value range of the parameter.
The limits of the value range can be seen in the "Maximum value" and "Minimum value"
columns.
The "Status of configuration" column indicates the progress of the configuration with colored
symbols.
See also Status of configuration (offline) (Page 62)
Following adaptation of the start values and downloading of the technology object to the
CPU, the parameters take the defined value at startup if they are not declared as retentive
("Retain" column).
Error indication
When a start value is input, a check is made for process-related and syntax errors and the
result is indicated.
Bad start values are indicated by:
● Red error symbol in the "Status of configuration" (offline mode) or "Compare result"
(online mode, depending on the selected comparison type) columns
and/or
● Red background in the "Start value project" field
If you click on the bad field, a roll-out error message appears with information of the
permissible value range or the necessary syntax (format)
Correcting bad start values
1. Correct bad start values using information from the roll-out error message.
Red error symbol, red field background, and roll-out error message are no longer
displayed.
The project cannot be successfully compiled unless the start values are error-free.
PID control
Function Manual, 03/2017, A5E35300227-AC
Configuring a software controller
3.10 Parameter view
61