
Set value
20
Current value
0
0
0
1
1
2
2
1
1
0
19
19
20
20
20
0
20
20
20
Input pulse
Input decrement
OFF
ON
OFF
ON
Reset input
ON
OFF
ON
Counter coil
OFF
ON
OFF
ON
OFF
I185 GB 06 15
LRX D01
49
COUNTER MODE 1 (FIXED COUNT, NON-RETENTIVE)
Mode 1 Counter will count up to a fixed preset value and stop counting when the current count is equal to the preset value, or count down to 0
and stop counting when the current count is equal to 0. Additionally, the current count value is non-retentive and will reset to init value on a
powering up to the LRD. In the example below, the counter will stop counting when it reaches the preset value of 20. Counter status bit C01 will
be ON when the current value is 20.
– Under this mode, the counter current value will be init value when the LRD is powered up or switching between RUN and STOP. The init value
is 0 if the counter is configured as counting up or else the preset value.
2
1
4
5
3
6
Mode = 1