Checking Operation - Omron EJ1 User Manual

Programless Communications
MELSEC-Q/QnA Series
Note
5-1-2

Checking Operation

Checking Operation
with SYSMAC CS/CJ
Series PLCs
1,2,3...
Name
Q-compatible Serial QJ71C24N
Communications Unit QJ71C24
QJ71C24N-R2
QJ71C24-R2
QJ71C24N-R4
QnA-compatible Serial A1SJ71QC24N
Communications Unit
A1SJ71QC24N-R2
Direct connections to the EJ1 are possible only with RS-232C or RS-422.
This section describes how to check operation for the configuration shown
below.
SYSMAC CS/CJ Series
1. Connect the EJ1 and PLC.
Connect the EJ1@-HFU and Serial Communications Unit as shown in the
following diagram.
Model Communications port
Channel 1
RS-232C
RS-232C
RS-422/485
RS-232C
RS-232C
EJ1
HFU
Port 1
RS-232C/485
Section 5-1
Channel 2
RS-422/485
RS-232C
RS-422/485
RS-422/485
RS-232C
TC EDU
Unit Unit
No. 0 No. 1
109