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LD Language Elements
SR2MAN01 11/2007 123
Latching:
Symbol of the Latching parameter:
This function is used to save the status of the fast counter's current values in the
event of a power failure.
Illustration: configuring a counter from the front panel of the smart relay:
Description:
Current Counter
Value
Value at any given instant resulting from successive up/down counts since the last
counter reset to its initial state.
If the current value of the counter exceeds the upper limit: +32,767, it is set to -32,768.
If the current value of the counter exceeds the lower limit: -32,767, it is set to +32,768.
Number Parameter Description
1 Cycle type Single/Repetitive
2 Duration of pulse Only if the cycle is repetitive
3 Parameter lock This parameter is used to lock the counter parameters. When
the block is locked, the preset value no longer appears in the
PARAMETERS menu.
4 Type of counting Counter configuration: Counting to the preset value (TO) or
from the preset value (FROM).
5 Preset value Counter preset value.
6 Latching Backup of state of the current counter value in the event of a
power cut.
Activé Non activé
2
Menu / OK
-+
R E P E T I T I V E
D C T : F R O M
K 1
I = 0 0 0 0 1 P = + 0 0 0 1 3
6
1
2
3
5
4