Omron CPM1A Datasheet

Specifications
12
Analog I/O Unit
CPM1A-MAD01 CPM1A-MAD11
Voltage I/O Current I/O Voltage I/O Current I/O
Analog
it
Number of inputs 2 2 (2 words allocated)
g
inputs
Input signal range 0 to 10 V/1 to 5 V 4 to 20 mA 0 to 5 V/1 to 5 V/0 to 10
V/–10 to 10 V
0 to 20 mA/
4 to 20 mA
Maximum rated input ±15 V ±30 mA ±15 V ±30 mA
External input
impedance
1 MΩ min. 250 Ω rated 1 MΩ min. 250 Ω
Resolution 1/256 1/6,000 (full scale)
Overall precision 1.0% of full scale
25°C: ±0.3% of full scale 25°C: ±0.4% of full scale
p
0 to 55°C: ±0.6% of full scale 0 to 55°C: ±0.8% of full scale
Converted A/D data 8-bit binary Binary data (hexadecimal, 4 digits)
–10 to 10 V input range: Full scale = F448 to 0BB8 Hex
Other input ranges: Full scale = 0000 to 1770 Hex
Analog
tt
Averaging --- Supported (Set for each input using a DIP switch.)
g
outputs
(See
note 2 )
Disconnection
detection
--- Supported
no
t
e
2
.
)
Number of outputs 1 1 (1 word allocated)
Output signal range 0 to 10 V/
–10 to 10 V
4 to 20 mA 1 to 5 V/0 to 10 V/
–10 to 10 V
0 to 20 mA/
4 to 20 mA
External output max.
current
5 mA --- --- ---
External output allowed
load resistance
--- 350 Ω 1 kΩ min. 600 Ω max.
External output
impedance
--- 0.5 Ω max. ---
Resolution 1/256 (1/512 for output signal range –10
to 10 V)
1/6,000 (full scale)
Overall precision 1.0% of full scale
25°C: ±0.4% of full scale
p
0 to 55°C: ±0.8% of full scale
Data setting 8-bit binary with sign bit ---
Set D/A data --- Binary data (hexadecimal, 4 digits)
–10 to 10 V input range: Full scale = F448 to 0BB8 Hex
Other input ranges: Full scale = 0000 to 1770 Hex
Conversion time 10 ms/Unit max. (See note 1.) 2 ms/point (6 ms for all points)
Isolation method Photocoupler isolation between I/O
terminals and PLC (There is no isolation
between the analog I/O signals.)
Photocoupler isolation between analog I/O and internal
circuits (There is no isolation between the analog I/O signals.)
Note 1. The conversion time is the total time for 2 analog inputs and 1 analog output.
2. The voltage output and current output can be used at the same time, but the total output current cannot exceed 21 mA.
CompoBus/S I/O Link Unit
Specifications
Item Specification
Model number CPM1A-SRT21
Master/Slave CompoBus/S Slave
Number of I/O bits 8 input bits, 8 output bits
Number of words occupied in
CPM1A I/O memory
1 input word, 1 output word
(Allocated in the same way as other Expansion Units)
Node number setting Set using the DIP switch.
Note: See the CompoBus/S Catalog (Q103) for more details on CompoBus/S communications.

Omron CPM1A Specifications

General

Model	CPM1A
Type	Compact PLC
Communication Ports	RS-232C (optional)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Storage Temperature	-20 to 75°C
Humidity	10% to 90% RH (non-condensing)
Power Supply	24 VDC or 100-240 VAC
Expansion	Expansion I/O units available
Timers	128
Counters	256 counters
I/O Points	10, 20, 30, or 40 points (depending on model)