1-5
Section
Comparison with the CPM1A
22
Item
CPM1A
CPM2A
Interval timer
One-shot mode
Yes
Yes
Scheduled interrupt mode
Yes
Yes
Quick-response
inputs
Setting the quick-response
function
PC Setup
PC Setup and INT(89)
(Unmask interrupt input.)
pu s
INT(89) (Mask)
Not supported (ignored)
Supported.
INT(89) (Read mask)
Reads mask status.
Reads result of mask setting.
INT(89) (Clear)
Not supported (ignored)
Supported.
Minimum pulse width
50
µ
s min.
200
µ
s min.
High-speed
counter
Count mode
Differential-phase (up/down)
mode
Pulse plus direction mode
Up/down pulse mode
Increment mode
Differential-phase (up/down)
mode
Increment mode
Max. counter frequency
5 kHz in differential-phase
(up/down) mode
20 kHz in pulse plus direction
mode, up/down pulse mode,
and increment mode
2.5 kHz in differential-phase
(up/down) mode,
5 kHz in increment mode
Counter PV range
–8,388,608 to 8,388,607 in
differential-phase (up/down)
mode, pulse plus direction
mode, and up/down pulse
mode
0 to 16,777,215 in increment
mode
–32,768 to 32,767 in
differential-phase (up/down)
mode
0 to 65,535 in increment mode
Check when registering target
value match table
Same direction, same SV not
possible
Same direction, same SV
possible
Method used to reference the
target value match interrupt
table
Comparison of all values in the
table, regardless of order of
appearance in table
Comparison in order of
appearance in table
Reading range-comparison
results
Check AR 1100 to AR 1107 or
execute PRV(62).
Check AR 1100 to AR 1107.
Reading status
Check AR 1108 (comparison in
progress), check AR 1109
(high-speed counter PV
overflow/underflow), or
execute PRV(62).
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Pulse synchronization
Supported.
Not supported.