Omron NT21 - SETUP MANUAL 10-2001 Setup Manual page 97

Connecting to the Host's RS-422A/485 Port
Connecting the Link Adapter to the Host (RS-422A)
NS-AL002
NT-AL001
8
7
6
5
4
3
2
1
NT-AL001
8
7
6
5
4
3
2
1
86
When an NT-AL001 Link Adapter is being used, the RS-232C cable can be con-
nected to either serial port A or B on the NT21.
When an NS-AL002 Link Adapter is being used, the Link Adapter connects di-
rectly to serial port B on the NT21, so an RS-232C cable is not required.
NT21
Wiring to a C-series Host Link Unit
Applicable Unit: C200H-LK202-V1
Link Adapter
Pin number
NT-AL001
1
RS-422A
terminal
2
block
3
4
5
6
7
8
DIP Switch Settings
NT-AL001: Pins 1 and 2 ON
Pins 3 to 6 OFF
NS-AL002: Pin 4 ON
Pins 1 to 3 OFF
Note To avoid an FG ground loop, do not connect the Link Adapter's functional ground
to the shield wire of the RS-422A cable.
Wiring to a CPM1, CPM2A, CPM2C, or SRM1
Applicable Units:
Connect to the PC through a CPM1-CIF11 RS-422A Adapter.
NS-AL002
Link Adapter
Pin number
NT-AL001
1
RS-422A
terminal
2
block
3
4
5
6
7
8
DIP Switch Settings
NT-AL001: Pins 1 and 2 ON
Pins 3 to 6 OFF
NS-AL002: Pin 4 ON
Pins 1 to 3 OFF
Link Adapter
(NT-AL001 or
NS-AL002)
RS-422A
(500 m max.)
Abbreviation
Shield
NS-AL002
F. Ground
1
--- SG
SDB
3
7 SDA
RDB
2
6 RDA
--- CSB
--- CSA
CPM1-10CDR-j
CPM1-30CDR-j
CPM1A-10CDj-j
CPM1A-30CDj-j
CPM2A-30CDjj-j
CPM2A-60CDjj-j
CPM2C-10jjjjjj-j
SRM1-C02-V2
Abbreviation
Shield
NS-AL002
F. Ground
1
SG
---
SDB
3
7 SDA
2 RDB
6 RDA
--- CSB
--- CSA
Section
Host
1
PC (CPU Unit)
Pin number Abbreviation
Connector
FG
hood
1 RDB
RS-422A
connector
2 –
3 SG
4 –
5 SDB
6 RDA
7
FG
5
8 –
9 SDA
(9-pin type)
CPM1-20CDR-j
CPM1A-20CDj-j
CPM1A-40CDj-j
CPM2A-40CDjj-j
CPM2C-20jjjjjj-j
PC (RS-422A Adapter)
Abbreviation
FG
SG
RS-422A
SDB (+)
terminal
SDA (–) block
RDB (+)
RDA (–)
(9-pin type)
5-1
6
9
FG
SG
SDB
SDA
RDB
RDA