Omron CPM2C-S100C, Operation Manual, Page: 60 / 269

38
Specifications Section 2-1
High-speed Counter Inputs
The following CPU Unit input bits can be used as high-speed counter inputs.
The maximum count frequency is 5 kHz in differential phase mode and
20 kHz in the other modes.
The minimum pulse widths for inputs IN00000 (A-phase input) and IN00001
(B-phase input) are as follows:
The minimum pulse width for input IN00002 (Z-phase input) is as follows:
Interrupt Inputs
CPM2C-S PCs are equipped with inputs that can be used as interrupt inputs
(interrupt input mode or counter mode) and quick-response inputs. The mini-
mum pulse width for these inputs is 50
µ
s.
Inputs IN00003 and IN00004 can be used as interrupt inputs.
Input Function
Differential phase mode Pulse plus direction
input mode
Up/down input mode Increment mode
IN00000 A-phase pulse input Pulse input Increment pulse input Increment pulse input
IN00001 B-phase pulse input Direction input Decrement pulse input Normal input
IN00002 Z-phase pulse input or hardware reset input
(IN00002 can be used as a normal input when it is not used as a high-speed counter input.)
100
µ
s min.
T
1
T
2
T
3
T
4
: 12.5
µ
s min.
Phase A
Phase B
50
µ
s min.
12.5
µ
s
min.
Pulse plus direction input mode, Up/down input
mode, Increment mode
Differential phase mode
12.5
µ
s
min.
T
1
T
2
T
3
T
4
50
µ
s min.
500
µ
s min.
Phase Z