Omron CRT1 - 10-2008, Operation Manual

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Expansion Units Section 8-1
8-1 Expansion Units
One Expansion Unit can be combined with one Digital I/O Slave Unit (CRT1-
ID16(-1), CRT1-OD16(-1), CRT1-ROS16, or CRT1-ROF16). The following
Expansion Units are available. They can be combined in various ways for flex-
ible I/O capacity expansion.
Installing Expansion Units
1,2,3... 1. Remove the cover from the right side of the Digital I/O Slave Unit.
2. Align the connector on the Expansion Unit with the connector on the Digital
I/O Slave Unit and press the Units together.
3. Press the Expansion Unit and Digital I/O Slave Unit together until they click
into place with the connectors properly mated.
I/O Power Supply If an Expansion Input Unit is connected to a Digital Input Slave Unit, then I/O
power must be supplied only to the Digital I/O Slave Unit. If any other combi-
nation of Units is used, I/O power must be supplied to both the Digital I/O
Slave Unit and Expansion Unit. This includes connecting an Expansion Input
Unit to a Digital Output Slave Unit, an Expansion Output Unit to a Digital Input
Slave Unit, or an Expansion Output Unit to a Digital Output Slave Unit.
Model I/O points Input capacity Output capacity
XWT-ID08 8 DC inputs (NPN) 8 0
XWT-ID08-1 8 DC inputs (PNP) 8 0
XWT-OD08 8 transistor outputs (NPN) 0 8
XWT-OD08-1 8 transistor outputs (PNP) 0 8
XWT-ID16 16 DC inputs (NPN) 16 0
XWT-ID16-1 16 DC inputs (PNP) 16 0
XWT-OD16 16 transistor outputs (NPN) 0 16
XWT-OD16-1 16 transistor outputs (PNP) 0 16