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Installation manual
CNC 8055
CNC 8055i
9.
PLC RESOURCES
SOFT: V02.2X
Counters
9.6.1 Operating mode of a counter
If the CEN counter input is initialized (CEN=1), the counter allows its count to be increased and
decreased by means of the CUP and CDW inputs.
Operation of CUP and CDW inputs
Every time a leading edge is produced at the CUP input the counter increases its count by one count.
Every time a leading edge is produced at the CDW input the counter decreases its count by one
count.
Operation of the CPR input
If a leading edge is produced at the CPR input the internal count value will take the new value
assigned.
Operation of the CEN input
If CEN = 0 is selected the counter ignores both up-count (CUP) and down-count (CDW) inputs, it
being necessary to assign CEN = 1 for the counter to take notice of these inputs.
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