Bidirectional Rs-232 Interface - Contech CT series User Manual

Set the above parameters (a) to (d) to your requirements and effect printing. These
parameters are available in SETUP functions.

BIDIRECTIONAL RS-232 INTERFACE.

Bi-directional RS-232 interface is provided to communicate with peripheral
devices like computer, printer etc. The interface is provided through a nine pin D-type
connector provided. Connections are as below.
Pin 2 – RXD – Receive Data
Pin 3 - TXD – Transmit Data
Pin 7 – Ground.
The Serial data transmitted and received are in standard ASCII
mode - ASYNCHRONOUS , 8 BITS, NO PARITY, 1 STOP BIT.
Baud rate : 2400 OR 4800 SELECTABLE.
The data format for weight output is
<+/->WWWW.WWb <UU>bPPPPPPnos <CR><LF>
where WWWWWW.WW is the weight
PPPPPP - count
b – blank space
CR- Carriage Return – 0D hex( 13 DEC)
LF – Line feed
UU – weighing unit ( for example
The balance could be controlled by an external device like computer with the
Sr.No. Date
001 12.05.2010 13:25:00 2.354 kg
002 12.05.2010 13:27:05 2.323 kg
ii)
Details will be printed vertically in a slip form.
For ex. Sr.No. : 001
- 20 hex (32 DEC)
- 0A hex (10 DEC)
kg
)
Time Weight
– Vertical
Date : 12.05.2010
Time : 13:25:00
Weight : 2.445 kg
Pcs : 100nos
Pcs
100nos
99 nos