Using Protocol Macros

Section 5-4

1:N Connections Using RS-422A/485 Ports

Serial Communications Board

Signal Pin

RS-422A/ 485 inter-

faceHood

D-sub, 9-pin connector (male)

Terminating resistance ON 4-wire

Serial Communications Board

Signal Pin

RS-422A/ 485 Inter- face

Hood

D-sub, 9-pin connector (male)

Terminating resistance ON 4-wire

Serial Communications Board

Signal Pin

RS-422A/ 485 Inter- face

Hood

D-sub, 9-pin con- nector (male)

Terminating resistance ON 4-wire

DIP Switch

Pin 1: ON

Pin 2: ON (terminating resistance)

Pin 3: OFF

Pin 4: OFF

Pin 5: OFF

Pin 6: ON

Device supporting RS-422A/485 communications (2-wire)

Signal

RS-422A/ 485 inter- face

Device supporting RS-422A/485 communications (2-wire)

Signal RS-422A/

 

 

485 inter-

 

 

face

Device supporting

 

 

RS-422A/485

 

 

communications

3G2A9-AL001

Shield (4-wire)

Pin Signal

Signal Pin

Signal

 

RS-422A/

RS-422A/

485 inter-

face

485 inter-

 

face

 

Signal

D-sub, 9-pin

connector (male)

Pin

 

 

Device supporting

 

RS-422A/485

 

communications

 

(4-wire)

 

Shield Signal

 

RS-422A/

 

485 inter-

 

face

NT-AL001-E Link Adapter

Pin

Signal

Signal

Pin

Shield

Signal

 

 

 

NC

 

 

FG

 

 

 

SD

 

 

SD

 

 

 

RD

 

 

RD RS-232C

 

 

RTS

 

 

RTS

Interface

 

 

 

 

 

 

 

CTS

 

 

CTS

 

 

 

5V

 

 

 

 

 

 

DSR

 

 

DSR

 

Shield

 

DTR

 

 

DTR

 

 

 

SG

 

 

SG

 

DIP Switch

D-sub, 9-pin con-

 

(+) 5-V

Pin 2: OFF,

nector (male)

 

(–) power

otherwise

 

 

 

 

 

 

 

 

same as below.

 

 

 

 

 

NT-AL001-E Link Adapter

 

 

 

Pin

Signal

Signal

Pin

Shield

Signal

 

 

 

NC

 

 

FG

 

 

 

SD

 

 

SD

 

 

 

RD

 

 

RD

RS-232C

 

 

RTS

 

 

RTS

 

 

 

 

Interface

 

 

CTS

 

 

CTS

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

DSR

 

 

DSR

 

Shield

 

DTR

 

 

DTR

 

 

 

SG

 

 

SG

 

Terminal block

D-sub, 9-pin

 

(+) 5-V

 

 

connector

 

(–) power

 

 

(male)

 

 

 

 

75

Page 86
Image 86
Omron CQM1H-SCB41 operation manual 3G2A9-AL001