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Digital I/O
Unit
Connec-
tor-Terminal
Block Con-
version Unit
Connecting
Cable
Wd m
COM0
Connection
diagram
COM0
24 VDC
Note 1. The polarity for input power supply connections
indicated with dotted lines (- - - - -) can be con-
nected in either direction provided that the same
polarity is used for the commons.
2. Both COM0 and COM1 have two pins each. They
are internally connected inside the Unit, but they
must all be wired.
NX-series Digital I/O Unit User's Manual (W521)
NX-ID6142-6
XW2D-40G6
XW2D-40G6-RF
XW2Z-
B
+
Wd (m
1)
NC
B20
NC
A20
NC
B19
NC
A19
COM1
B18
A18
15
B17
15
A17
14
B16
14
A16
13
B15
13
A15
12
B14
12
A14
11
B13
11
A13
10
B12
10
A12
09
B11
09
A11
08
B10
08
A10
COM1
B9
A9
07
B8
07
A8
06
B7
06
A7
05
B6
05
A6
04
B5
04
A5
03
B4
03
A4
02
B3
02
A3
01
B2
01
A2
00
B1
00
24 VDC
A1
Digital I/O
Unit
Connec-
tor-Terminal
Block Con-
version Unit
Connecting
Cable
Wd (m+1)
COM1
Connection
diagram
COM1
24 VDC
Note 1. The polarity for input power supply connections
indicated with dotted lines (- - - - -) can be con-
nected in either direction provided that the same
polarity is used for the commons.
2. Both COM0 and COM1 have two pins each. They
are internally connected inside the Unit, but they
must all be wired.
Appendices
NX-ID6142-6
XW2R-J40G-T
XW2Z-
B
Wd m
NC
B20
NC
A20
NC
B19
NC
A19
B18
COM0
A18
15
B17
15
A17
14
B16
14
A16
13
B15
13
A15
12
B14
12
A14
11
B13
11
A13
10
B12
10
A12
09
B11
09
A11
08
B10
08
A10
B9
COM0
A9
07
B8
07
A8
06
B7
06
A7
05
B6
05
A6
04
B5
04
A5
03
B4
03
A4
02
B3
02
A3
01
B2
01
A2
00
B1
00
A1
24 VDC
A - 113
A
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Troubleshooting
