Counter (C) - Mitsubishi Q00JCPU User Manual

10
DEVICE EXPLANATION

10.2.11 Counter (C)

(1) Definition
(2) Counter types
(3) Count processing
A counter is a device which counts the number of input condition leading edges in
sequence programs.
When the count value matches the set value, the counter counts up and its contact
turns ON.
The counter is of an up-counting type.
There are two counter types: counters which count the number of input condition
start-ups (leading edges) in sequence programs, and counters which count the
number of interrupt factor occurrences.
(a) When OUT C instruction is executed
When and OUT C instruction is executed, the following counter processing
occurs: coil ON/OFF, current value update (count value + 1), and contact ON/OFF.
Counter current value update and contact ON/OFF processing are not performed
at END processing.
[Ladder example]
X0
[Processing at OUT C0 Instruction (X0: OFF to ON)]
END
Sequence
program
Figure 10.28 Execution and processing of OUT C
K10
C0
OUT C0 END
Processing content
Coil ON/OFF
Current value update
Contact ON/OFF
instruction
10.2 Internal User Devices
10.2.11 Counter (C)
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