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41
Control Linked to a Host Device
Section 3-3
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.
• 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 16 Basic Units can be connected to a single HFU to expand
the system to a maximum of 64 channels. When using version
, 32
Basic Units can be connected to a single HFU to expand the system to a
maximum of 128 channels.
M
3G3RV
Inverter
CJ1-series PLC
EJ1
HFU
TC4
TC4
EDU
CJ1W-CIF11
RS-422A Converter
G3NA
Solid State Relays
Sensor
inputs
Control outputs
RS-485
RS-232C
RS-422A/485
RS-232C
NS8
Programmable Terminal
RUN
TC4
Processing in
N
2
atmosphere
Workpiece
V1.2
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
Page 305: ......