Omron CPM2A - 11-2005 Manual page 31

Basic System Configurations
Expansion I/O Units
20-point I/O Unit
Unit
Expansion 20 I/O
I/O Units I/O Units points points
12 inputs 12 inputs
8 outputs
8 inputs
8 outputs p
10
A PC with 6 analog inputs and 3 analog outputs (the maximum) can be as-
sembled by connecting three Analog I/O Units. (Only one Analog I/O Unit can be
connected if an NT-AL001 Adapter is connected to the CPU Unit's RS-232C
port.)
A PC with up to 6 temperature inputs for input from thermocouples or platinum
resistance thermometers can be assembled by connecting Temperature Sensor
Units.
CompoBus/S I/O Link Units (Slave Units) can be connected to a CPU Unit. I/O
data (8 inputs and 8 outputs) is transferred between the CPU Unit and the area
allocated to the CompoBus/S Slave. (The I/O data exchanged with the Slave is
internal data; there are no external input or output terminals.)
DeviceNet I/O Link Units can be connected to a CPU Unit. I/O data (32 inputs
and 32 outputs) is transferred between the CPU Unit and the area allocated to
the DeviceNet I/O Link Unit. (The I/O data exchanged with the Slave is internal
data; there are no external input or output terminals.)
Note 1. Different types of Expansion I/O Units or Expansion Units can be connected
at the same time. For example, an Expansion I/O Unit, an Analog I/O Unit, a
CompoBus/S I/O Link Unit, and DeviceNet I/O Link Unit can be connected to
the CPU Unit.
2. When an NT-AL001 Adapter is connected to the RS-232C port, only one Ex-
pansion Unit or Expansion I/O Unit can be connected to the CPU Unit be-
cause of power supply limitations.
8-point Input Unit
Max. number Inputs
of Units
3 Units max. 24 VDC
(See note.) (See note )
24 VDC
24 VDC
24 VDC
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Note Only one Expansion I/O Unit can be connected if an NT-AL001 Adapter is con-
nected to the CPU Unit's RS-232C port.
8-point Output Unit
Outputs
Relays
Sinking transistors
Sourcing transistors
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Relays
Sinking Transistors
Sourcing Transistors
Section 1-2
Model
CPM1A-20EDR1
CPM1A-20EDT
CPM1A-20EDT1
CPM1A-8ED
CPM1A-8ER
CPM1A-8ET
CPM1A-8ET1