Modular Temperature Controller EJ1 11
■ 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.
Restrictions When Connecting with the
G3ZA
• Up to 8 G3ZA Multi-channel Power Controllers can be connected to
one Basic Unit (EJ1N-TC4/TC2).
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.
Wiring for Distributed Placement
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.
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-HFU
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EJ1N-TC4 or
EJ1N-TC2
One HFU can manage up to 16 Basic Units
(when using the EJ1N-TC4: 4 channels x 16 Units = 64 channels)
EJ1C-EDU
EJ1C-EDU
Port B
Port B
EJ1N-HFU
Port C
EJ1N-TC4
or
EJ1N-TC2
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.
To the host device
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EJ1C-EDU
U
to 8 G3ZA Power Controllers can be connected to one Basic Unit.
EJ1N-TC4 or EJ1N-TC2
G3ZA
G3ZA connection port
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
Port B
To the host device
Port B
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EJ1C-EDU
EJ1N-TC4 or EJ1N-TC2
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EJ1C-EDU
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.
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
Group A
Group B
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
Port A
Port B
Port A
Port B
Host
devices
FG
24 VDC
RS-485
RS-485
24 VDC
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