Siemens SIMATIC S7-1500/ET 200MP System Manual page 254

• The control data record is stored retentively in the CPU. Note:
– The retentivity of the control data record is independent of the retentivity settings in
– If you write a control data record with modified configuration, the original data record
Automation system
System Manual, 01/2023, A5E03461182-AK
Example in FBD: Use the LABEL (jump label) and JMP (jump at RLO=1) instructions to
program a loop.
Figure 11-8 WRREC
the STEP 7-memory area. The memory area in which the control data record is
configured does then not have to be configured as retentive for this purpose.
196 is deleted and the new data record 196 is saved retentively. The CPU will then
restart with the modified configuration.
Flexible automation concepts
11.2 Configuration control (option handling)
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