© Adam Equipment Company 2012 Page 11 Rev C5, January 2012
8.0 RS232 Communications
(Only applied for scale with RS232 interface)
The Interface parameters are:
Connection details are:
8.1 RS-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.
8.2 When 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.
RS-232 output of weighing data
ASCII code
9600 Baud rate (fixed)
1 start bit, 8 data bits,1 stop bit
No Parity
Connector: 9 pin d-subminiature socket
Pin 3 Output
Pin 2 Input
Pin 5 Signal Ground