Omron NT21 - SETUP MANUAL 10-2001 Setup Manual page 102

Connecting to the Host's RS-422A/485 Port
Connecting the Link Adapters to the Host (RS-422A)
NT-AL001 NS-AL002
8
7
6
5
4
3
2
1
NT21
Wiring to one of the following Serial Communications Boards/Units
• CS-series CS1G/H(-H) Serial Communications Board
• CJ-series CJ1G Serial Communications Unit
• C-series C200HX/HG/HE(-Z)E Serial Communications Board
• CQM1H Serial Communications Board
Applicable Units:
CS1G-CPU42-E(V1)
CS1G-CPU44-E(V1)
CS1H-CPU63-E(V1)
CS1H-CPU65-E(V1)
CS1H-CPU67-E(V1)
CS1G-CPU42H
CS1G-CPU44H
CS1H-CPU63H
CS1H-CPU65H
CS1H-CPU67H
CJ1W-SCU41 (communication port 1)
C200HE-CPU32-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU53-(Z)E
C200HX-CPU34-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU65-ZE
CQM1H-CPU51
Link Adapter
Pin number Abbreviation
NT-AL001 NS-AL002
F. Ground
1 1
RS-422A
terminal
2 --- SG
block
SDB
3 3
4 7 SDA
RDB
5 2
6 6 RDA
7 --- CSB
8 --- CSA
DIP Switch Settings
NT-AL001: Pins 1 and 6 ON
Pins 2 to 5 OFF
NS-AL002: Pin 1 ON
Pins 2 to 4 OFF
To avoid an FG ground loop, do not connect the functional ground of the Link
Adapter to the shielding of the RS-422A cable.
Link Adapter
(NT-AL001 or
RS-422A
NS-AL002)
(Total length
500 m max.)
PC
Shield Pin number Abbreviation
Connector
FG
hood
1 SDA
2 SDB
3 –
4 –
5 –
6 RDA
7 –
8 RDB
9 –
Shield
(9-pin type)
Section 5-1
Host
CS1G-CPU43-E(V1)
CS1G-CPU45-E(V1)
CS1H-CPU64-E(V1)
CS1H-CPU66-E(V1)
CS1G-CPU43H
CS1G-CPU45H
CS1H-CPU64H
CS1H-CPU66H
C200HE-CPU42-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU85-ZE
CQM1H-CPU61
1
RS-422A
connector
5
6
9
91