Omron CRT1 - 10-2008 Operation Manual page 368

Expansion Units
Note
Refer to the following table and write the I/O power correctly when connecting
an Expansion Unit.
Combination
Digital Input Slave Unit with Expan-
sion Input Unit
Example: CRT1-ID16 + XWT-ID16
Digital Input Slave Unit with Expan-
sion Output Unit
Example: CRT1-ID16 + XWT-OD16
Digital Output Slave Unit with
Expansion Input Unit
Example: CRT1-OD16 + XWT-ID16
Digital Output Slave Unit with
Expansion Output Unit
Example: CRT1-OD16 + XWT-OD16
Do not connect Expansion Units while the power supply is ON.
I/O power supply to Expansion Slave Unit
Not required.
(The Expansion Unit uses the same I/O power
supply as the Digital I/O Slave Unit.)
Required (I/O power must be supplied to both
Units.)
Required (I/O power must be supplied to both
Units.)
Required (I/O power must be supplied to both
Units.)
Section 8-1
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