8.0 RS232 Communications

(Only applied for scale with RS232 interface)

The Interface parameters are:

Connection details are:

 

 

 

 

 

 

RS-232 output of weighing data

 

 

Connector: 9 pin d-subminiature socket

 

 

ASCII code

 

 

Pin 3

Output

 

 

9600 Baud rate (fixed)

 

 

Pin 2

Input

 

 

1 start bit, 8 data bits,1 stop bit

 

 

Pin 5

Signal Ground

 

 

No Parity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.1RS-232 connection between the Scale and the Host:

Scale -----------------------

Cable---------------------------

Host

(DB9 female)--------

(DB9 male)----

(DB9 female)--------

(DB9 male)

TXD 2

2

2

2 RXD

 

RXD 3

3

3

3 TXD

 

GND 5

5

5

5 GND

 

NC 1

1

1

1

 

NC 4

4

4

4

 

NC 6

6

6

6

 

NC 7

7

7

7

 

NC 8

8

8

8

 

NC 9

9

9

9

 

Note: The indicator pin1,4,6,7,8 and 9 are not connected.

The RS232 function will only operate if PH has been set to 0 or 2.

8.2When Parameter S.F. in section 7 is set to 0 :

No RS232 function. The scale will not transmit or receive any data although the scale is equipped with RS232. The RS232 function can be only activated when the scale is in normal weighing mode.

© Adam Equipment Company 2012

Page 11

Rev C5, January 2012

Page 12
Image 12
Adams MDW-250L manual RS232 Communications