Functions
17
Quick-response Inputs
There are two quick-response inputs for the CPM1A 10-point I/O CPU and four for the 20-, 30-, and 40-point I/O CPU (shared with the
interrupt inputs). Since an internal buffer is provided, the quick-response input function can even detect signals modified within one
cycle.
CPU
Input no. Minimum input pulse width
10-point I/O CPU 00003 to 00004
0.2 ms
20-point, 30-point, 40-point I/O CPU 00003 to 00006
Overseeing
processes
Program
execution
I/O
refreshing
Overseeing
processes
Program
execution
I/O
refreshing
Input signal
(00003)
IR 00003
One cycle
Application Example:
Calculating the Number of Chips
The metal sensor counts the number of parts
that have passed. Steady counting can be
achieved even when the input-ON time is short.
CPM1A-V1
F2LP-WK4
F2LP-W
0.2 ms min
High-speed Counter
The CPM1A has a high-speed counter function that can be used in the incrementing and up/down mode. Using this function together
with the input interrupts enables zone comparison control or target value control irrelevant of the cycle time.
Item Incrementing mode Up/Down mode
Input no.
00000 Count input A-phase input
00001 --- B-phase input
00002 Reset input Z-phase input
Input method Single-phase input Phase-difference, 4× inputs
Count frequency 5.0 kHz 2.5 kHz
Count range 0 to 65535 –32767 to 32767
Note: When using in the incrementing mode, the input 00001 can be used as an input contact.
Count input
Reset input
Solenoid
Inverter, etc.
Sensor
Rotary encoder
00000 or
00001
00002