Control Linked To A Host Device; Application - Omron EJ1 User Manual

Control Linked to a Host Device

3-3

Control Linked to a Host Device

3-3-1

Application

In this example configuration, a CJ1-series PLC controls a reflow oven and an
EJ1 performs temperature control on 6 zones and 12 control loops in the
oven.
3G3RV
Inverter
CJ1-series PLC
Workpiece
M
• If an EJ1@-HFU is used, a ladder program does not have to be created to
exchange data such as temperature readings and alarm status with the
PLC.
Also, up to 15 Basic Units can be connected to a single HFU to expand
the system to a maximum of 60 channels.
NS8
Programmable Terminal
RS-485
RS-232C
RS-232C
Processing in
N atmosphere
2
Section 3-3
RUN
CJ1W-CIF11
RS-422A Converter
RS-422A/485
EJ1
HFU TC4 TC4 TC4 EDU
Sensor
inputs
Control outputs
G3NA
Solid State Relays
41