Unit Configuration Example - Omron EJ1 User Manual

Unit Configuration Example

■ Minimal Configuration
Small Systems with 2 Channels or 4 Channels Communicating with the Host
Device via RS-485 (CompoWay/F Protocol)
• Alarms can be allocated to the auxiliary output for the End Unit.
• G3ZA outputs can be used.
EJ1N-TC4
or
EJ1N-TC2 EJ1C-EDU
Port A (connector): USB connection can be made
PWR COM1
RUN COM2
EJ1-TC4
ERR COM3
ALM
with the E58-CIFQ1 (sold separately).
SW1
ON
Port B: RS-485 (CompoWay/F)
SW2
■ Multiple Units without an EJ1N-HFU
Building Systems Communicating with the Host Device, such as a PLC, PT, or
Computer, via RS-485 (CompoWay/F Protocol)
• The 2 auxiliary alarm outputs provided on the End Unit can be used for integrated alarm systems.
• G3ZA outputs can be used.
• Distributed placement is possible by using multiple EJ1C-EDU End Units.
EJ1N-TC4
or
EJ1C-EDU
EJ1N-TC2
Port A (connector): USB connection can be
PWR COM1 PWR COM1 PWR COM1
RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
ERR COM3 ERR COM3 ERR COM3
ALM ALM ALM
made with the E58-CIFQ1 (sold separately).
SW1 SW1 SW1
ON ON ON
Port B: RS-485 (CompoWay/F)
SW2 SW2 SW2
G3ZA
G3ZA
connection
G3ZA
connection
port connection
port
port
READY READY READY
SD/RD SD/RD SD/RD
SW1 SW1 SW1
OCC OCC OCC
SW2 SW2 SW2
ERROR ERROR ERROR
G3ZA G3ZA G3ZA
■ Multiple Units with an EJ1N-HFU
Using the EJ1N-HFU@-NFL@ to Build a System Communicating 1:1 with a PLC
Using Programless Communications
• The 2 auxiliary outputs provided on the End Unit can be used.
• The 4 event inputs and 4 auxiliary outputs of the HFU can also be used.
• G3ZA outputs can be used.
• Distributed placement is possible by using multiple EJ1C-EDU End Units
RS-232C/RS-485
EJ1N-TC4
or
EJ1N-HFU EJ1N-TC2
EJ1C-EDU
PWR COM1 PWR COM1 PWR COM1 PWR COM1
RUN EJ1-HFU COM2 RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
ERR COM3 ERR COM3 ERR COM3 ERR COM3
ALM ALM ALM ALM
SW1 SW1 SW1 SW1
ON ON ON ON
SW2 SW2 SW2 SW2
Port C
G3ZA
G3ZA
connecti-
connection
on port
port
READY READY READY
SD/RD SD/RD SD/RD
SW1 SW1 SW1
OCC OCC OCC
SW2 SW2 SW2
ERROR ERROR ERROR
G3ZA G3ZA G3ZA
CX-Thermo for setting
PC
Host devices
PT PC
PLC
PLC
PLC
Port A (connector): USB connection can be made
with the E58-CIFQ1 (sold separately).
Port B
Port B is used for distributed placement.
G3ZA
connection
port
CX-Thermo for setting
PC
Host devices
PC
PT
CX-Thermo for setting
PC
Modular Temperature Controller
EJ1
9