Omron CPM2C User Manual

25
Comparison with the CPM1A and CPM2A Section 1-5
Interrupt inputs
(counter mode)
Counter mode Incrementing counter
Decrementing counter
Same as CPM2C. Decrementing
counter
Counter upper limit 2 kHz Same as CPM2C. 1 kHz
SR 244 to SR 247 Contains counter PV. Same as CPM2C. Contains counter
PV–1.
Method(s) to read counter
PV
Read SR 244 to SR 247.
Execute PRV(62).
Same as CPM2C. Read SR 244 to
SR 247.
(Counter PV – 1)
Method to change counter
PV
Execute INI(61). Same as CPM2C. Not supported.
Interval timer One-shot mode Yes Same as CPM2C. Same as CPM2C.
Scheduled interrupt mode Yes Same as CPM2C. Same as CPM2C.
Item CPM2C CPM2A CPM1A
Item CPM2C/CPM2A CPM1A
Quick-response
inputs
Setting the quick-response
function
PC Setup PC Setup and INT(89)
(Unmask interrupt input.)
INT(89) (Mask) Not supported (ignored) Supported.
INT(89) (Read mask) Reads mask status. Reads result of mask set-
ting.
INT(89) (Clear) Not supported (ignored) Supported.
Minimum pulse width 50 µs min. 200 µs 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 direc-
tion 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 tar-
get 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.

Omron CPM2C Specifications

General

Brand	Omron
Model	CPM2C
Category	Controller
Language	English