NT631C-ST153-EV3 Omron, NT631C-ST153-EV3 Datasheet - Page 138
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NT631C-ST153-EV3
Manufacturer Part Number
NT631C-ST153-EV3
Description
10.48-ColrDisplay,TFT,Ivy,Eng
Manufacturer
Omron
Datasheet
1.NT-AL001.pdf
(315 pages)
Specifications of NT631C-ST153-EV3
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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5-2-5
Connecting to the Host’s RS-422A/485 Port
1:N Connection among RS-485 Ports
Reference:
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
422A/485 Cables on page 125.
The connection method in which the RS-485 ports of multiple NT631/
NT631Cs and one host are connected in a 1:N connection is described here.
• Communications using the RS-485A standard NT link (1:N) method is
• Communications using the RS-485A high-speed NT link (1:N) method is
Note A Serial Communications Board cannot be installed.
possible only when a Serial Communications Board is installed in a CS-
series PLC, a Serial Communications Unit is installed in a CS/CJ-series
PLC, a Communications Board is installed in a C200HX/HG/HE(-Z)E, or a
CQM1H-SCB41 Serial Communications Board is installed in a CQM1H.
possible only when a Serial Communications Board is installed in a CS-
series PLC or a Serial Communications Unit is installed in a CS/CJ-series
PLC.
RDA
TRM
RDB
SDA
SDB
RSA
RSB
24V
+DC
NT631/NT631C
NT631/NT631C
NT631/NT631C
NT631/NT631C side
RS-422A/
485
interface
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
Abbreviation
RDB (+)
RDA (-)
SDB (+)
RSB (+)
Functional
ground
SDA (-)
RSA (-)
TRM
Next PT
Serial port B
(RS-422A/485, terminal block)
Shielding wire
RS-485 cables
(max. total length 500 m)
Pin number
Connector
hood
1
2
3
4
5
6
7
9
8
(9-pin type)
PLC side
Abbreviation
SDB (+)
SDA (-)
RDA (-)
RDB (+)
FG
−
−
−
−
−
RS-422A
interface
CPU Unit
1
5
Section 5-2
9-pin connector
CS/CJ-series or
C200HX/HG/HE(-Z)E
PLC
121
6
9
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