Node Number Setting - Omron EJ1N-TC4 Operation Manual

■ Connection Precautions

Node Number Setting

• Nodes 1 to 16 can be used on EJ1@-HFUs. Node 0 is allocated to
the host device for programless communications.
• Nodes 0 to 63 can be used on Basic Units.
Restrictions on the Number of Units
That Can Be Connected
Restrictions for HFUs
• One EJ1N-HFU can manage up to 16 Basic Units (EJ1N-TC4/
TC2).
• Up to 16 Units can be connected side by side including the EJ1N-
HFU. The End Unit is not included in the 16 Units.
One HFU can manage up to 16 Basic Units
(when using the EJ1N-TC4: 4 channels x 16 Units = 64 channels)
To the host device
PWR PWR PWR
COM1 COM1 COM1
RUN EJ1-HFU COM2 RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
ERR COM3 ERR COM3 ERR COM3
ALM ALM ALM
SW1 SW1 SW1
ON ON ON
Port C
SW2 SW2 SW2
EJ1N-HFU
Up to 16 Units can be connected side by side.
Note: End Units are not included in the number
of Units that can be connected.
Restrictions When Connecting with the
G3ZA
• Up to 8 G3ZA Multi-channel Power Controllers can be connected to
one Basic Unit (EJ1N-TC4/TC2).
EJ1N-TC4 or EJ1N-TC2
EJ1C-EDU
PWR COM1
RUN COM2
EJ1-TC4
ERR COM3
ALM
SW1
ON
SW2
G3ZA connection port
READY READY
SD/RD SD/RD
SW1 SW1
OCC OCC
SW2 SW2
ERROR ERROR
Up to 8 G3ZA Power Controllers can be connected to one Basic Unit.
PWR PWR
COM1 COM1
RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
ERR COM3 ERR COM3
ALM ALM
SW1 SW1
Port B
ON ON
SW2 SW2
EJ1N-TC4
or EJ1C-EDU
EJ1N-TC2
PWR COM1
RUN COM2
EJ1-TC4
ERR COM3
ALM
SW1
Port B
ON
SW2
EJ1N-TC4 or
EJ1C-EDU
EJ1N-TC2
READY READY
SD/RD SD/RD
SW1 SW1
OCC OCC
SW2 SW2
ERROR ERROR
G3ZA
Restrictions for Basic Units
• When the system is configured of only Basic Units (EJ1N-TC4/
TC2), up to 64 Units can be connected.
• Distributed placement is possible by using End Units (EJ1C-EDU).
• Up to 16 Units can be connected side by side. The End Unit is not
included in the 16 Units.
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
SW1 SW1 SW1
ON ON ON
SW2 SW2 SW2
EJ1N-TC4 or EJ1N-TC2
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
SW1 SW1 SW1
ON ON ON
SW2 SW2 SW2
EJ1N-TC4 or EJ1N-TC2
Up to 64 Basic Units can be connected using distributed placement.
Using EJ1@-TC4 models: 4 channels x 64 Units = 256 channels
Using EJ1@-TC2 models: 2 channels x 64 Units = 128 channels
Note: End Units are not included in the number of Units that can be connected.
Wiring for Distributed Placement
Group A
PWR COM1 PWR COM1
RUN COM2 RUN COM2
EJ1-TC4 EJ1-TC4
ERR COM3 ERR COM3
ALM ALM
1
SW1 SW1
2
3
ON ON
4
5
6
SW2 SW2
7
8
9
Group B
PWR COM1 PWR COM1
RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
ERR COM3 ERR COM3
ALM ALM
1
SW1 SW1
2
3
ON ON
4
5
6
SW2 SW2
7
8
9
Note: Wire the dotted line when settings for all distributed Units are
being made from one port A connector.
If the dotted lines are not wired, make the settings for group A
using the port A connector for group A and make the settings
for group B using the port A connector for group B.
Modular Temperature Controller
To the host device
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
SW1 SW1 SW1
Port B
ON ON ON
SW2 SW2 SW2
EJ1C-EDU
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
SW1 SW1 SW1
Port B
ON ON ON
SW2 SW2 SW2
EJ1C-EDU
Host
Port A
devices
FG
Port B
24 VDC
Port A
RS-485
Port B
RS-485
24 VDC
EJ1
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