5-1
Chapter
5
PARALLEL I/O INTERF
ACE
1. Standard I/O interface overview
To connect the RCX controller to an external device such as a PLC, signal input/output
DIO option boards are available. Up to two DIO option boards can be installed in each
unit of the RCX22 series. There are two types of DIO option boards: NPN and PNP
specifications. Inputs to the controller are referred to as DI (Digital Inputs) and outputs
from the controller as DO (Digital Outputs).
n
NOTE
See "7. I/O connections" in Chapter 3 for a defi nition of NPN and PNP
specifi cations.
■
DIO option board
(1)
(2)
(3)
(1) Power connector..... Connector for DC 24V power supply
(2) IO connector .......... Connector for I/O signals
(3) DIP switch ............. Switch for setting the board ID
1. Standard I/O interface overview
Summary of Contents for CEmarking RCX221
Page 2: ......
Page 6: ...4 MEMO...
Page 16: ......
Page 30: ......
Page 38: ......
Page 62: ...3 24 MEMO...
Page 68: ......
Page 342: ......
Page 366: ...5 24 MEMO...
Page 368: ......
Page 384: ......
Page 396: ......
Page 404: ...8 8 MEMO...
Page 406: ......
Page 467: ...MEMO...