Omron NT30 Operation Manual page 55

Connection to a PC by Host Link via RS-422A
Wiring Connections
Connect the shield for the cable to pin No. 7 of the connector at the Host Link Unit side only.
S Connecting the NT30/30C to a CVM1/CV-series Host Link Unit
CVM1/CV-series Host Link Unit Connector Specifications
- Applicable Host Link Units: CV500-LK201 (communication port 2)
- Electrical characteristics:
- Signal direction:
1
6
9
5
Wiring Connections
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 Send data A
2 Send data B
6 Receive data A
8 Receive data B
NT30/30C
Abbrevi-
ation
SDA
RS-422A
SDB
terminal
block
RDA
RDB
PC (Host Link Unit)
Shield
Pin
number
1
5
6
7
9
Connector cover
RS-422A cable
Abbreviation Abbrevi tion
FG
SDA (SD–)
SDB (SD+)
RDA (RD–)
RDB (RD+)
PC (Host Link Unit)
Pin
Shield
number
1
2
4
5
6
8
Connector cover
RS-422A cable
Section 2-6
Abbrevi-
ation
RDB
SDB
RS-422A
RDA
interface
FG
SDA
FG
Signal Direction
Input Output
– –
f
f
f
f
Abbrevi-
ation
SDA
SDB
RS-422A
interface
RDA
RDB
FG
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