Mitsubishi L02CPU User Manual

246
(4) Maximum counting speed
The counter can count only when the on/off time of the input condition is longer than the execution interval of the
corresponding OUT instruction. The maximum counting speed is calculated by the following formula:
*1 Duty (n) is the ON-OFF time ratio of count input signal, and is expressed as a percentage value.
The maximum counting speed can be increased by placing multiple counters within one scan. At this time, use the direct
access input (DX) for the counter input signal. (
Page 48, Section 2.6)
• n: Duty (%)
*1
• T: Execution interval of the OUT instruction (sec)
n
100
T
1
Maximum counting speed (Cmax) =
[times/s]
OFF
ON
T1 T2
T2
When T1 T2, n =
When T1 < T2, n =
T1 + T2
T1 + T2
T1
100%
100%
Count input signal
END END
OUT
C
OUT
C
OUT
C
OUT
C
OUT
C
Execution interval of
the OUT C instruction
Program

Mitsubishi L02CPU Specifications

General

Brand	Mitsubishi
Model	L02CPU
Category	Controller
Language	English