Omron NT30 Operation Manual page 54

Connection to a PC by Host Link via RS-422A
S Connecting the NT30/30C to a C-series Host Link Unit
C-series Host Link Connector Specifications
- Applicable Host Link Units: C200H-LK202-V1
- Electrical characteristics:
- Signal direction:
1
6
9
5
Wiring Connections
S Connecting the NT30/30C to a C-series Host Link Unit (insulated)
C-series Host Link Connector Specifications
- Applicable Host Link Units: C500-LK203 (insulated)
- Electrical characteristics:
- Signal direction:
1
6
9
5
44
C500-LK202-V1
C120-LK202-V1
Conform to EIA RS-422A
Signal input and output is relative to the Host Link Unit.
Connector Connector
Signal Name Sign l N me
Pin No.
1 Receive data B
3 Signal ground
5 Send data B
6 Receive data A
7 Frame ground
9 Send data A
NT30/30C
Abbrevi-
ation
SDA
RS-422A
SDB
terminal
block
RDA
RDB
Conform to EIA RS-422A
Signal input and output is relative to the Host Link Unit.
Connector Connector
Signal Name Sign l N me
Pin No.
Connector
Frame ground
cover
1 Receive data B
5 Send data B
6 Receive data A
7 Frame ground
9 Send data A
Abbrevi tion Abbreviation
RDB
SG
SDB
RDA
FG
SDA
PC (Host Link Unit)
Pin
Shield
number
1
3
5
6
7
9
Connector
cover
RS-422A cable
Abbreviation Abbrevi tion
FG
RDB
SDB
RDA
FG
SDA
Section 2-6
Signal Direction
Input Output
f
– –
f
f
– –
f
Abbrevi-
ation
RDB
SG
SDB
RS-422A
RDA
interface
FG
SDA
FG
Signal Direction
Input Output
– –
f
f
f
– –
f