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DeviceNet I/O Link Units Section 7-7
Output Hold Function
Note When using Expansion Unit/Expansion I/O Unit Error Flags (A436) in the pro-
gram, turn ON pin 4 on the DIP switch. If communications are set to be
cleared, the timing for clearing outputs and setting the Error Flags may not
agree.
Wiring the DeviceNet
Communications Path
When using a CPM1A-DRT21 DeviceNet I/O Link Unit, wire the DeviceNet
communications cable as shown in the following diagram.
DeviceNet Connectors
Use the following connectors.
Note Use the XW4B-05C4-TF-D when wiring multidrop connections using Thick
Cables.
Use the following screwdriver for the above connector.
Pin 4 DeviceNet baud rate
OFF Clears remote outputs when communications error occurs. (Outputs turned
OFF for each logic value.)
ON Holds remote outputs when communications error occurs.
Model XW4B-05C1-H1-D XW4B-05C4-TF-D
Form and
specifications
OMRON connector with screws
(provided with CPM1A-DRT21)
OMRON connector for multidrop
connections (See note.)
Black (V−)
Blue (CAN low)
Shield
White (CAN high)
Red (V+)
CPM1A-DRT21
DeviceNet I/O Link Unit
Connector for same CPM1A-DRT21
network (XW4B-05C1-H1-D)
Multidrop Connector
(XW4B-05C4-TF-D)
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