7
High-speed Counter CPM1 PCs have a high-speed counter that can be used in incremental mode or
up/down mode. The high-speed counter can be combined with input interrupts
to perform target value control or zone comparison control that isn’t affected by
the PC’s cycle time.
Count input
Reset input
Solenoid
Sensor Rotary Encoder
Motor
Controller
00000
00001
00002
Motor
controller
Mode Input functions Input method Count
frequency
Count
range
Control methods
Up/Down 00000: A-phase input
00001: B-phase input
00002: Z-phase input
Phase-difference,
4× inputs
2.5 kHz –32767
to
32767
Target value control:
Up to 16 target values and interrupt
subroutine numbers can be
registered.
Incremental 00000: Count input
00001: See note.
00002: Reset input
Individual inputs 5.0 kHz 0
to
65535
Zone comparison control:
Up to 8 sets of upper limit values,
lower limit values, and interrupt
subroutine numbers can be
registered.
Note In incremental mode, this input (00001) can be used as an regular input.
Refer to the CQM1/CPM1/CPM1A/SRM1 Programming Manual (W228) for set-
ting and using the high-speed counter.
CPM1 Features and Functions Section 1-1