18
System Configuration Section 1-2
Cables for 32-point I/O Units
1-2-12 Maximum Number of I/O Units and I/O Points
The maximum number of I/O Units, Dedicated I/O Units, Communications
Units, and Inner Boards that can be connected and the maximum number of I/
O points (i.e., allocated words) that can be controlled are listed in the following
table.
CPU Block Only
Note *Number of I/O points = Number of input points (
≤ 256) + Number of output
points (
≤ 256).
CPU Block and Expansion I/O Block
Purpose I/O Unit Connecting cable Connector-Terminal Block Conversion Unit
For connections to
Ter m i n al B l o cks
CQM1-ID112/213
(32 inputs)
CQM1-OD213
(32 outputs)
XW2Z-@@@B XW2B-40G5 M3.5 terminal screws
XW2B-40G4 M2.5 terminal screws
CQM1-ID112/213
(32 inputs)
XW2Z-@@@D XW2C-20G5-IN16 Common type
Purpose I/O Unit Connecting Cable I/O Relay Terminal for input
or output
For connections to Relay
Ter m i n al s
CQM1-ID112/213 (32 inputs) G79-I@C-@ G7TC-I@16
CQM1-OD213 (32 outputs) G79-O@C-@ G7TC-OC@@, G70D, G70A
CPU Unit No. of I/O Units and
Dedicated I/O Units
No. of
Communications
Units
No. of Inner
Boards
Max. I/O points*
(allocated words)
CQM1H-CPU61 11 max. 1 max. 2 max. 512 (32 words)
CQM1H-CPU51
CQM1H-CPU21 Connection not
supported
Connection
not supported
256 (16 words)
CQM1H-CPU11
CPU Unit No. of I/O Units and Dedicated I/O
Units (see note 1)
No. of
Communications
Units
No. of Inner
Boards
Max. I/O points
(see note 2)
(allocated words)
CPU Block Expansion I/O
Block
CQM1H-CPU61 5 max. 11 max. 1 max. 2 max. 512 (32 words)
CQM1H-CPU51
CQM1H-CPU21 Connection not
supported
Connection not
supported
256 (16 words)
CQM1H-CPU11
CPU Unit
Power Supply Unit
11 Units max.
Communications Unit
Inner Boards
(2 slots)
16 built-in inputs
(1 word)
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