Wiring and Connections

Section 3-4

 

 

 

3-4-8 One-to-one PC Link Connections

A CPM1A can be linked to a CPM1A, CQM1, CPM1, CPM2A, CPM2C, SRM1(-V2), C200HS or C200HX/HG/HE PC through an RS-232C Adapter. One PC acts as the Master and the other as the Slave to link up to 256 bits in the LR area (LR 0000 to LR 1515).

RS-232C Adapter (see note)

RS-232C Cable

CPM1A CPU Unit

RS-232C Adapter

(see note)

CPM1A CPU Unit

LR 00

WRITE

LR 07

LR 08

READ

LR 15

Link bits

WRITE area

READ area

Link bits

READ area

WRITE area

LR 00

READ

LR 07

LR 08

WRITE

LR 15

Note One-to-one PC connections can only be used when the RS-232C Adapter (CPM1-CIF01) is connected.

Set the DIP switch of the RS-232C Adapter (CPM1-CIF01) to the NT (bottom) side.

The following diagram shows the wiring in the RS-232C cable used to connect a CPM1A to another PC.

RS-232C Adapter

Signal

Pin No.

 

 

 

 

 

 

 

 

FG

1/Cover

 

 

 

 

 

 

SD

2

 

 

 

 

 

 

 

 

RD

3

 

 

 

 

 

 

 

 

RS

4

 

 

 

 

 

 

 

 

CS

5

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

SG

9

 

 

 

 

 

 

 

 

 

 

 

RS-232C Adapter

Pin No.

Signal

1/Cover

FG

 

 

2

SD

 

 

3

RD

 

 

4

RS

 

 

5

CS

 

 

6

 

 

7

 

 

8

 

 

9

SG

 

 

63

Page 76
Image 76
Omron CPM1A operation manual One-to-one PC Link Connections