41
Count Function Available as Individual
Input Mode
Overview
Input increase pulse in R0.0 and decrease pulse signal in R0.1 and
measure the count number.
Counter current value is cleared with R0.2 clear instruction, and count
operation is paused with R0.3 mask instruction.
Timing Diagram
Count value changes according to the input status of each signal as
illustrated below. Count value changes at the pulse input edge rise
time.
Increase pulse input
Decrease pulse input
(CH0 IN-A)
(CH0 IN-B)
(CH0 clear)
(CH0 Mask)
0V (24V DC)
Install Pulse I/O unit in slot No.0
R0
R1
R2
R3
Occupied I/O areas
Clear instruction
Mask instruction
CH0 IN-A (R0.0)
CH0 IN-B (R0.1)
CH0 Clear (R0.2)
CH0 Mask (R0.3)
Count value
Count increases with R0.0
pulse edge rising and
direction control OFF.
Count stops while
mask signal is ON.
Count decreases
with R0.1 input
Count increases with
R0.0 input
Reset count value with
clear signal ON.