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7 Digital I/O Slave Unit
GX-series EtherCAT Slave Unit User’s Manual
7-4 Specifications for Each Slave Unit
7
7-4-13 e-CON Connector Type 16-point Input and 16-point Output Slave Unit
GX-MD3218/MD3228
Terminal arrangement diagram
Names and functions
No. Name Function
(1) Communications connectors
Refer to "6-3 Specifications of Common Areas" in Page 6 - 4.
(2) Unit power supply connector
(3) Status indicators
(4) Node Address setting Switches
(5) Input indicators (0 to 15)
Indicates the state of an input contact (ON/OFF).
Not lit: Contact OFF (input OFF state)
Lit in yellow: Contact ON (input ON state)
(6) Output indicators (0 to 15)
Indicates the state of an output contact (ON/OFF).
Not lit: Contact OFF (output OFF state)
Lit in yellow: Contact ON (output ON state)
(7) I/O connectors (1 to 16 × 2)
Connects an external device.
<Left side>
For input device
<Right side>
For output device
(8) I/O power supply connector Supplies the I/O power. (For output device)
(9) DIN track mounting hook Fixes a Slave Unit to a DIN track.
(5)
(1)
(7)
(2)
(3)
(4)
(9)
(8)
(6)
01234567
1
2
3
4
NC
NC NC NC
NC
NC NC NC
01234567
1
2
3
4
V
VVVVVVV
NC
NC NC NC
NC
NC NC NC
GGGG
G
GGG
OUT
0
OUT
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
G0 G1 G2 G3
G4
G5 G6 G7
IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7
V
VVVVVVV
8 9 10 11 12 13 14 15
1
2
3
4
V
V VVVVVV
NC
NC NC NC
NC
NC NC NC
GGGG
G
GGG
OUT
8
OUT
9
OUT
10
OUT
11
OUT
12
OUT
13
OUT
14
OUT
15
8 9 10 11 12 13 14 15
1
2
3
4
V
V VVVVVV
NC
NC NC NC
NC
NC NC NC
G8 G9
IN8 IN9
G10 G11
G12
G13 G14 G15
IN10 IN11
IN12
IN13 IN14 IN15
Left side (input)
Right side (output)
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