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9
System Configurations
Section 1-2
1-2-2
Expansion I/O Boards
The CPU Board can be connected with up to three Expansion I/O Boards,
which are available in five models, including 32, 40, or 64 I/O points, and with
either relay or sinking transistor outputs. For details on the number of Expan-
sion I/O Boards that can be connected, refer to 3-1-4 Number of Expansion
Boards.
A PLC with 168 I/O points (the maximum) can be assembled by connecting
two Expansion I/O Boards. The following configuration provides 88 inputs and
80 sinking transistor outputs:
Expansion I/O Boards
Note When an NT-AL001-E Adapter is connected to the RS-232C port, only one
Expansion I/O Board can be connected because of power supply limitations.
Expansion I/O Board with 32 I/O points
(Relay outputs)
Expansion I/O Board with 32 I/O points
(Transistor outputs)
CPU Board
Expansion connector
Expansion (I/O) Board
Expansion connector
Expansion I/O Board with 40 I/O points
(Relay outputs)
Expansion I/O Board with 64 I/O points
(Transistor outputs)
CPM2B-40C2DR-D
(24 inputs, 16 outputs)
CPM2B-64EDT
(32 inputs, 32 outputs)
×
1 Board +
×
2 Boards = 88 inputs, 80 outputs
Expansion I/O Board
Inputs
Outputs
Model
Number of
allocated words
32 I/O points
(16 inputs, 16 outputs)
16 inputs, 24 V DC 16 relay outputs
(Terminal-block)
CPM2B-32EDR
Input: 1 word
Output: 1 word
16 inputs, 24 V DC 16 sinking transistor
outputs (Connector)
CPM2B-32EDT
Input: 1 word
Output: 1 word
16 inputs, 12 V DC
CPM2B-32ED1T
40 I/O points
(24 inputs, 16 outputs)
24 inputs, 24 V DC 16 relay outputs
(Terminal-block)
CPM2B-40EDR
Input: 2 words
Output: 2 words
64 I/O points
(32 inputs, 32 outputs)
32 inputs, 24 V DC 32 sinking transistor
outputs (Connector)
CPM2B-64EDT
Input: 2 words
Output: 2 words
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