User manual

Publication 1760-UM001A-EN-P
7-2 Retention
Setting Retention
Requirement
RequirementRequirement
Requirement: Pico must be in Stop mode
Switch to the System menu. If Pico is protected by a password, the System menu is
not available until Pico is unlocked (see Unlocking Pico on page 6-3).
Enable the Retention function (see figure on previous page). The menu item
RETENTION ON/OFF is a toggle menu. The menu always displays the
operating mode into which you can change.
The default setting of Pico is the display RETENTION ON. With this setting,
Pico runs without retentive data, provided a valid circuit diagram is present. When
Pico is in Stop mode or has been switched to a de-energized state, all actual values
are deleted.
Deleting Retentive
Actual Values
The retentive actual values are cleared if the following is fulfilled (applies only to
Stop mode):
• When the circuit diagram is transferred from PicoSoft (PC) or from the
memory module to Pico, the retentive actual values are reset to 0 (marker =
off). This also applies when there is no program in Pico.
• When there is a changeover from retention enabled (the display shows
RETENTION OFF) to retention disabled (the display shows RETENTION
ON).
• When the circuit diagram is deleted via the DELETE PROG menu.
Retentive behavior Menu displayed Behavior: M13, M14, M15, M16, C8, T8, (D1 to
D8, C5, C6, C7, T7) when the unit is switched
off and on again
No retentive actual
values
RETENTION ON All actual values will be cleared when the unit
changes from Run to Stop mode or when power is
turned off.
Retentive actual
values
RETENTION OFF All actual values will be stored when the unit
changes from Run to Stop mode or when power is
turned off.
PASSWORD ...
SYSTEM
GB D F E I ..
DEBOUNCE OFF
P ON
STOP MODE
RETENTION ON
DEBOUNCE OFF
P ON
RUN MODE
RETENTION ON
3 X
and