200
Timer and Counter Instructions Section 3-5
Specifying the SV in a Word
In the following example, the SV for CNTR(012) 0007 is determined by the
content of CIO 1. The content of CIO 1 can be controlled by an external switch
so that the set value can be changed manually from the switch.
3-5-9 RESET TIMER/COUNTER: CNR(545)/CNRX(547)
Purpose Resets the timers or counters within the specified range of timer or counter
numbers.
Ladder Symbol BCD
Binary
SV:
CIO 1
0.00
0.01
0.02
0.03
0.04
0.05
200.07
200.08
Increment input
Decrement input
Completion Flag
Roll-over Roll-back
Fixed SV:
5000
CNR(545)
N1
N2
N
1
: First number in range
N
2
: Last number in range
CNRX(547)
N1
N2
N
1
: First number in range
N
2
: Last number in range
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