1-5
Section
Comparison with the CPM1A
23
Item
CPM1A
CPM2A
Pulse output
control
Trapezoidal acceleration/
deceleration
Supported with ACC(––). The
initial frequency can be set.
Not supported.
co
o
PWM(––) output
Supported.
Not supported.
Number of simultaneous pulse
outputs
2 max.
1 max.
Maximum frequency
10 kHz max.
2 kHz max.
Minimum frequency
10 Hz
20 Hz
Pulse output quantity
–16,777,215 to 16,777,215
0 to 16,777,215
Direction control
Supported.
Not supported.
Positioning to absolute positions
Supported.
Not supported.
Bit status while pulses are being
output
No effect
Turned ON/OFF by pulse
output
Reading PV
Read SR 228 through SR 231
or execute PRV(62).
Not supported.
Resetting PV
Supported.
Not supported.
Status outputs
Accelerating/decelerating
PV overflow/underflow
Pulse quantity set
Pulse output completed
Pulse output status
Pulse output status
Analog controls
2
2
Clock function
Internal
None
Words containing time info.
AR 17 to AR 21
---
Analog I/O
Analog I/O Units can be
connected.
Same as CPM2A.
Temperature monitoring
The CPU Unit can receive
temperature sensor input from
either thermocouples or
platinum resistance
thermometers.
Same as CPM2A.
CompoBus/S communications
A CompoBus/S I/O Link Unit
can be connected to provide
CompoBus/S Slave functions.
Same as CPM2A.
DeviceNet communications
A DeviceNet Link Unit can be
connected to provide
DeviceNet slave functions.
Same as CPM2A.
Communications switch
This switch determines
whether communications are
governed by the standard
settings or PC Setup settings.
None
Battery
Battery
Lithium
None (capacitor backup only)
y
Battery replacement
Possible
---
Life expectancy/backup time
5-year lifetime at 25
°
C
20-day backup at 25
°
C
Battery error detection
Supported.
---
Communications
(in CPU Unit)
Peripheral port
Programming Console
(auto-detect)
Peripheral bus (auto-detect)
Host Link (with Slave-initiated
communications)
No-protocol
Programming Console
(auto-detect)
Peripheral bus (auto-detect)
Host Link
1:1 PC LInk
1:1 NT Link
RS-232C port
Host Link
No-protocol
1:1 PC LInk
1:1 NT Link
None
Input time constant
Can be set to 1, 2, 3, 5, 10, 20,
40, or 80 ms. (Default: 10 ms)
Can be set to 1, 2, 4, 8, 16, 32,
64, or 128 ms. (Default: 8 ms)
