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Remote I/O Communications
CompoNet Gateway Unit for CC-Link Operation Manual
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• I/O Expansion for Word Slave Units
The number of I/O points for Word Slave Units in a CompoNet network can be increased by using
Expansion Units.
The following table shows the Slave Unit and Expansion Unit models that can be used.
• I/O Allocations when Expansion Units Are Used
Memory is allocated to a Basic Unit with an Expansion Unit in the same way as it would be allo-
cated to a Slave Unit of the same size as the combination of the sizes of the Basic Unit and the
Remote Input Registers (RWr) and remote output registers (RWw) of the Expansion Unit.
The following examples show the allocations when an Expansion Unit is connected to a Basic Unit
at node address m (m = 0, 1, 2,...).
Additional Information
For Slave Units with both inputs and outputs*1, the remote input register (RWr) node
address is used as the Slave Unit node address. Therefore, the Participation Flag and
Communications Error Flag correspond to the bits for the remote input register (RWr)
node address.
*1:
A Word Slave that combines a Basic Unit and Expansion Unit to provide both inputs and
outputs, or a CRT1B-MD Bit Slave, which provides both inputs and outputs.
Basic Unit
Expansion Unit
Inputs
Outputs
CRT1-ID16/ID16-1
None
16 0
XWT-ID08/ID08-1
24
0
XWT-OD08/OD08-1
16 8
XWT-ID16/ID16-1
32 0
XWT-OD16/OD16-1
16 16
CRT1-OD16/OD16-1
CRT1-ROS16/ROF16
None
0 16
XWT-ID08/ID08-1
8 16
XWT-OD08/OD08-1
0 24
XWT-ID16/ID16-1
16 16
XWT-OD16/OD16-1
0 32
Summary of Contents for GQ-CRM21
Page 1: ...OPERATION MANUAL Cat No W489 E1 01 GQ CRM21 CompoNet Gateway Unit for CC Link ...
Page 21: ...1 Overview 1 1 Overview 1 1 ...
Page 25: ...2 Description of Gateway Unit 2 1 Specifications 2 1 2 2 Component Names and Functions 2 4 ...
Page 38: ...2 13 CompoNet Gateway Unit for CC Link Operation Manual 2 2 Component Names and Functions 2 ...
Page 102: ......
