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Omron NT31 User Manual

Omron NT31
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106
Connecting to the Hosts RS-232C Port
Section 5-1
Connecting an NT31/NT31C and NT-AL001 (RS-485)
The relay terminal board is not included in the figure below. Insert a relay terminal
board so as to achieve the wiring configuration indicated below.
RS-485
NT31/NT31C
Host
NT-AL001
1
14
13 25
7
5
3
1
8
6
4
2
NT31/NT31C side
Next PT
NT-AL001 side
Shielding wire
(25-pin type)
Abbreviation
FG
SD
RD
RS
CS
SG
TRM
RDB (+)
SDB (+)
SDA ()
RDA ()
RSB (+)
RSA ()
Pin number
Connector
hood
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
23
24
25
Pin number
6
5
4
3
1
Abbreviation
RDA
RDB
SDA
SDB
Functional
ground
RS-232C/
422A/485
connector
RS-422A
terminal
block
In order to avoid an FG ground loop, do not make the connections between the
functional ground of the NT-AL001 and the shielding.

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Omron NT31 Specifications

General IconGeneral
BrandOmron
ModelNT31
CategoryTouch terminals
LanguageEnglish

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