NT31C-ST143-EV3 Omron, NT31C-ST143-EV3 Datasheet - Page 103
NT31C-ST143-EV3
Manufacturer Part Number
NT31C-ST143-EV3
Description
5.7 8-Color Dsp,STN,Ivory,Eng
Manufacturer
Omron
Datasheet
1.NT31-ST123B-EV3.pdf
(313 pages)
Specifications of NT31C-ST143-EV3
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Connecting to the Host’s RS-232C Port
5-1-3
86
1:N Connection between RS-422A/485 at the PT and RS-232C at
the Host
Wiring for a Memory Link Connection
Prepare the adapter cable while referring to the diagram shown below.
Since it is necessary to input a voltage of +5 V to the number 6 pin of NT-
AL001, supplying a voltage of 5 V from the host or an external voltage supply
for NT-AL001 is required.
The connection method in which the RS-422A/485 ports of multiple NT31/
NT31Cs are connected to the RS-232C port of one host in a 1:N connection is
described here.
An RS-232C/RS-422A Adapter (NT-AL001) is used to convert between the
RS-232C and RS-422A/485 communications methods.
1
5
NT31/NT31C
Max. 2 m
RS-422A/485 cable
(max. total length: 500 m)
Relay terminal block
6
9
25-pin connector
Serial port B
(RS-422A/485,
25-pin type)
RS-232C
connector
NT-AL001 side
(9-pin type)
Abbreviation Pin number
+5V
RS-422A terminal
block
FG
SD
RD
RS
CS
SG
−
−
−
A +5 V output is present at the host side
No +5 V output is at the host side
RS-232C/RS-422A
convertor unit
(NT-AL001)
Connector
hood
1
2
3
4
5
6
7
8
9
Shielding wire
9-pin connector
RS-232C cable with
connectors
Abbreviation
Connector
hood
(+5V)
SD
RD
RS
CS
SG
Host side
Host Link Unit/CPU Unit
9-pin connector
RS-232C
connector
Section 5-1
CS/CJ-series PLC,
C200HX/HG/HE(-Z)E
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