Omron NX Series User Manual page 106

4 Installation and Wiring
Insertion Locations and Patterns of Coding Pins
Insert three Coding Pins of each on the terminal block and on the Unit at the positions designated by
the numbers 1 through 6 in the figure below.
As shown in the following table, there are 20 unique pin patterns that can be used.
Holes used by
OMRON
Holes for incorrect
attachment prevention
(pin locations)
4 - 46
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Terminal Block
1
2
3
4
5
6
Pin locations for
Terminal Block
Pattern
1 2 3 4 5
No.1 ○ ○ ○
No.2 ○ ○ ○
No.3 ○ ○ ○
No.4 ○ ○
No.5 ○ ○ ○
No.6 ○ ○ ○
No.7 ○ ○
No.8 ○ ○ ○
No.9 ○ ○
No.10 ○ ○
No.11 ○ ○ ○
No.12 ○ ○ ○
No.13 ○ ○
No.14 ○ ○ ○
No.15 ○ ○
No.16 ○ ○
No.17 ○ ○ ○
No.18 ○ ○
No.19 ○ ○
No.20 ○ ○
Unit
1
2
3
4
5
6
○: Pin inserted
Pin locations for Unit
6 1 2 3 4 5 6
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○
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○
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NX-series System Unit User's Manual (W523)
Holes used by
OMRON
Holes for incorrect
attachment prevention
(pin locations)