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7 Digital I/O Slave Unit
GX-series EtherCAT Slave Unit User’s Manual
7-4 Sp
ecifica
tion
s fo
r Each Slave U
n
it
7
7-4
-13 e-
CON Connector
T
ype 16-
point Input and
16-point Output Slave
Unit
GX-MD3218
/MD3228
 GX-MD3218 (NPN)
 GX-MD3228 (PNP)
Wiring diagram
V
V V V V V V V
NC
NC NC NC NC NC NC NC
V V V V V V V V
NC NC NC NC NC NC NC NC
V
V V V V V V V
NC
NC NC NC NC NC NC NC
V V V V V V V V
NC NC NC NC NC NC NC NC
V
V
G
G
OUT
8
OUT
9
OUT
10
OUT
11
OUT
12
OUT
13
OUT
14
OUT
15
G G G G G G G G
OUT
0
OUT
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
G G G G G G G G G0 G1 G2 G3 G4 G5 G6 G7
IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7
G8 G9
IN8 IN9
G10 G11 G12 G13 G14 G15
IN10 IN11 IN12 IN13 IN14 IN15
2-wire sensor
(Limit switch, etc.)
Brown (white) Blue (black)
NPN output 3-wire
sensor
(Photoelectric sensor,
proximity sensor)
Blue (black) Black (white) Brown (red)
NPN input 3-wire
external device
(Emitter of photoelectric sensor)
Blue (black) Pink (white) Brown (red)
Solenoid valve, etc.
I/O power supply
(24 VDC)
V V V V V V V V
NC NC NC NC NC NC NC NC
V V V V V V V V
NC NC NC NC NC NC NC NC
V V V V V V V V
NC NC NC NC NC NC NC NC
V V V V V V V V
NC NC NC NC NC NC NC NC
V
V
G
G
OUT
8
OUT
9
OUT
10
OUT
11
OUT
12
OUT
13
OUT
14
OUT
15
G G G G G G G G
OUT
0
OUT
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
G G G G G G G G
G0 G1 G2 G3
G4
G5 G6 G7
IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7
G8 G9
IN8 IN9
G10 G11
G12
G13 G14 G15
IN10 IN11 IN12 IN13 IN14 IN15
2-wire sensor
(Limit switch, etc.)
Brown (white) Blue (black)
PNP output 3-wire
sensor
(Photoelectric sensor,
proximity sensor)
Blue (black) Black (white) Brown (red)
PNP input 3-wire
external device
(Emitter of photoelectric sensor)
Blue (black) Pink (white) Brown (red)
Solenoid valve, etc.
I/O power supply
(24 VDC)