Retention (non-volatile
data storage)
223
1SVC 440 795 M0100
Deleting retentive actual values
The retentive actual values are cleared if the following is
fulfilled (applies only in STOP mode):
• The program’s retentive actual values are reset to 0 when
it is transferred to the logic relay from CL-SOFT or from the
memory module. This also applies when there is no
program on the memory module, in which case the old
circuit diagram is retained in the logic relay.
• When the selected retentive markers, function relays or
text display are deactivated.
• When the circuit diagram is deleted via the DELETE FUNCT
menu.
The operating hours counters are always retentive. The
actual values can only be reset by means of a special reset
operation from the circuit diagram.
Transferring retentive behaviour
The setting for retentive behaviour is a circuit diagram
setting; in other words, the retention setting is on the
memory module and is transferred with the circuit diagram
when uploading or downloading from the PC.
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