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4.LED indicator and Physical dimensions
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Indication Contents
PWR Green Lights up when power for DeviceNet line is supplied.
Lights off SI unit isn’t on line or power supply for communication
line isn’t turned on.
Green
flashing
Waiting for connection (ON line)
Green
lights up
Connection completed (ON line)
Red
flashing
Connection time out (Minor communication error)
MOD / NET
Red
lights up
MAC ID duplication error or BUS OFF error
(Major communication error)
4-1 LED indication
EX120-SDN1
EX121-SDN1
EX122-SDN1
EX124D-SDN1
EX124U-SDN1
4-2 Physical dimensions
SI unit (EX120-SDN1)
SMC CORPORATION
Doc.No.EX
##-OME0015
1
1
1
1
0
0
2
2
3
3
4
4
5
5
6
6
7
7
8
8
0
0
1
1
2
2
4
4
8
8
16
16
32
32
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
2
2
1
1
0
0
0
0
0
0
0
0
0
0
62
62
1
1
0
0
1
1
1
1
1
1
1
1
63
63
1
1
1
1
1
1
1
1
1
1
1
1
STATION
STATION
ADDRESS
ADDRESS
TRANSMIT
TRANSMIT
SPEED
SPEED
125K
125K
250K
250K
500K
500K
0
0
0
0
1
1
0
0
0
0
1
1
1
1
1
1
SWITCH
SWITCH
SETTINGS
SETTINGS
ON
ON
SERIAL UNIT
SERIAL UNIT
SMC
SMC
28.8
28.8
10.2
10.2