Omron NT31 NT31C manual C500-LK203 3G2A6-LK202-EV1

Models: NT31 NT31C

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Connecting to the Host’s RS-422A/485 Port

Section 5-2

114

1325

NT31/NT31C side

 

Abbreviation

Pin number

 

FG

Connector

 

hood

 

 

 

1

RS-232C/

SD

2

422A/485

RD

3

connector

 

 

RS

4

 

 

CS

5

 

 

 

 

6

 

 

 

 

SG

7

 

 

 

 

8

 

TRM

9

 

 

 

 

RDB (+)

10

 

 

 

 

SDB (+)

11

 

12

 

 

 

 

13

 

 

 

 

14

 

SDA ()

15

 

RDA ()

16

 

 

 

 

 

C500-LK203 3G2A6-LK202-EV1

16

 

PC side

 

 

Pin number

Abbreviation

 

 

Connector

FG

 

 

hood

 

 

 

 

 

1

RDB

RS-422A

 

 

 

 

2

connector

9

3

5

 

4

5SDB

6RDA

7FG

8

9SDA

 

 

RSB (+)

23

 

 

RSA ()

24

 

 

25

(25-pin type)

Shielding wire

(9-pin type)

In order to avoid an FG ground loop, do not connect the functional ground of the NT31/NT31C to the shielding of the RS-422A cable.

Wiring When Connecting CPM1, CPM2A, CPM2C, or SRM1 Applicable units:

CPM1-10CDR-jCPM1-20CDR-j

CPM1A-10CDj-jCPM1A-20CDj-j

CPM1A-30CDj-jCPM1A-40CDj-j

CPM2A-30CDjj-jCPM2A-40CDjj-jCPM2A-60CDjj-j

CPM2C-10jjjjjj-jCPM2C-20jjjjjj-jSRM1-C02-V2

Connect to the PC through a CPM1-CIF11 RS-422A Adapter.

114

1325

NT31/NT31C side

 

Abbreviation

Pin number

 

FG

Connector

 

hood

 

 

 

1

 

 

 

RS-232C/

SD

2

422A/485

RD

3

connector

 

 

RS

4

 

 

 

 

 

CS

5

 

6

 

SG

7

 

 

 

 

8

 

 

 

 

TRM

9

 

RDB (+)

10

 

 

 

 

SDB (+)

11

 

 

 

 

12

 

13

 

14

 

SDA ()

15

 

RDA ()

16

 

 

 

 

 

 

 

 

 

 

RSB (+)

23

 

RSA ()

24

 

25

PC side

Abbreviation

FG

 

SG

 

 

RS-422A

SDB (+)

terminal

 

SDA ()

block

 

 

RDB (+)

 

 

 

RDA ()

 

(9-pin type)

Shielding wire

FG

SG

SDB

SDA

RDB

RDA

(25-pin type)

In order to avoid an FG ground loop, do not connect the functional ground of the NT31/NT31C to the shielding of the RS-422A cable.

118

Page 129
Image 129
Omron NT31 NT31C manual C500-LK203 3G2A6-LK202-EV1