Omron CJ1W-CT021 Operation Manual page 36

Quick Start Up Reference Guide
Exchanging data with CPU
16
The diagram below shows you all the functional blocks that the Unit has available
to you to exchange data with the CPU (refer to SECTION 4 "Exchanging Data with
CPU").
CJ-series CPU Unit
IOWR
13
IORD
13
Interrupts
14
Interrupts
15
Section 1-4
CJ 1W-CT021
O1
O0
Unit Output Pattern
I0
I1