D-I/O Connector - Epson RC520 Manual

6. D-I/O Connector

The D-I/O connector is for connecting your input/output equipment to the system. A
standard controller model has one D-I/O port on the rear panel of the Drive Unit. It has
pins for 16 inputs and 16 outputs.
The following table shows the applicable Drive Unit for the input/output bit numbers.
Input bit number
Refer to the Setup & Operation 7. Expansion I/O Board - Optional for the specified
model of an expansion I/O Board.
For cable wiring, refer to the Setup & Operation 3.4 Noise Countermeasures in order to
prevent noise.
RC520 Rev.7
Output bit number
0 to 15 0 to 15
16 to 31 16 to 31
32 to 47 32 to 47
Setup & Operation 6. D-I/O Connector
Applicable Hardware
Standard Drive Unit
Additional Drive Unit (DU2)
Additional Drive Unit (DU3)
(DU1)
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