Omron Pt (Host Link Or 1:N Nt Link); Direct Connection From Rs-232C To Rs-232C - Omron CJ2 CPU UNIT User Manual

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Appendices

OMRON PT (Host Link or 1:N NT Link)

Direct Connection from RS-232C to RS-232C

PT
RS-232C
Host Link or NT Link (1:N)
CPU Unit
Pin
Signal
name
No.
FG
Hood
FG
SD
RD
RS-232C
RS
Interface
CS
5V
DR
ER
SG
D-sub, 9-pin
connector (male)
• Communications Mode: Host Link (unit number 0 only for Host Link)
• OMRON Cables with Connectors:
XW2Z-200T-1: 2 m
XW2Z-500T-1: 5 m
RS-422A/485 Ports with 1:1 Connection
CPU Unit
Signal
name
RS-
SDA−
422A/485
SDB+
Option
RDA−
Board
RDB+
FG
Terminal block
• Communications Mode: Host Link (Host Link unit number 0 only)
* Switch Settings on RS-422A/485 Option Board
• Terminating resistance: ON
• 2-wire/4-wire setting: 4-wire
Note The terminating resistance setting example is for the NT631/NT631C.
The setting method depends on the PT model. Refer to the manual for your PT.
A-122
RS-232C port
Pin
No.
Hood
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
D-sub, 9-pin
connector (male)
NT Link (1:N, N = 1 Unit only)
Short pin
Signal name
Pin
No.
3
4
1
2
5
Functional ground
Terminal block/D-sub connector
NT Link (1:N, N = 1 Unit only)
PT
Signal
name
FG
SD
RD
RS-232C
RS
Interface
CS
5V
SG
PT (See note.)
RDA
TRM
RDB
RS-
422A/485
SDA
interface
SDB
RSA
RSB
CJ2 CPU Unit Hardware User's Manual

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