NT31C-ST143B-EV3 Omron, NT31C-ST143B-EV3 Datasheet - Page 98
NT31C-ST143B-EV3
Manufacturer Part Number
NT31C-ST143B-EV3
Description
5.7,8-color,dis,stn,black,eng
Manufacturer
Omron
Datasheet
1.NT31-ST123B-EV3.pdf
(313 pages)
Specifications of NT31C-ST143B-EV3
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Quantity
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Part Number:
NT31C-ST143B-EV3
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Quantity:
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5-1-1
Settings at the RS-232C/
RS-422A Adapter (NT-
AL001)
Connecting to the Host’s RS-232C Port
The Type of Host and Settings
Reference:
Note
One end of the wire must always be connected to the host (PLC), and there
must be no branching. Branching will cause problems such as transmission
delays and communications failures.
CS/CJ-series CPU Units cannot be connected with the 1:1 connection NT link
method. Use the 1:N connection NT Link method (standard or high-speed) in-
stead to make the 1:1 connection. For details, refer to Using the NT link (1:N)
method (page 64) or Using the High-speed NT link (1:N) method (page 69).
The using condition is the same as the connecting PT side RS-232C and the
host side RS-232C.
For the available type and settings of the host, refer to the pages listed below.
When making a connection between RS-232C and RS-422A/485 ports using
an RS-232C/RS-422A Adapter, set the DIP switches on the NT-AL001 as fol-
lows.
(Not at
termination)
Host link
NT link (1:1)
NT link (1:N)
High-speed NT link (1:N) Using the High-speed NT Link (1:N) Method (page 69)
Memory link
NT31C
PLC
Example of Good Connection
(At termination)
(Not at
termination) (Not at
Method
NT31
termination)
NT31
Relay terminal block
Max. 2 m
(At
termination)
PT
NT31
Host Link Method (page 46)
NT Link (1:1) method (page 61)
Using the NT Link (1:N) Method (page 64)
Memory Link Method (page 72)
RS-485 cable
(max. total length
500 m)
NT31
RS-232C/RS422A
convertor unit
NT31C
PLC
RS-232C
cable
(max. 2 m)
Examples of Bad Connections
Reference
NT31
Host
NT31
NT31C
Section 5-1
PLC
Relay terminal block
NT31
81
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