8. RS232 OUTPUT
The RTN Series of scales can be ordered with an optional RS232 output.
SPECIFICATIONS:
» RS232 output of weighing data.
» ASCII code.
» 4800 Baud.
» 8 data bits.
» No Parity.
RS232 (9PIN D TYPE CONNECTOR)
1
2
3
4
5
6
7
8
9
PIN 2
PIN 3
PIN 4
9PIN D CONNECTER
INDICATOR
PIN 2
PIN 3
PIN 5
Data format: ASCII code, 10 bits per frame data, bit 1: start bit, bit2~bit8: data bits, bit 9: verify bit (even).
STX
±
p= 01x1xx2x3x4x5x6
Stable: x6=1 Unstable: x6=0
Over: x5=1
Otherwise: x5=0
Negative: x4=1
Plus: x4=0
Zero: x3=1
Otherwise: x3=0
Net zero: x2=1
Otherwise: x2=0
Tare: x1=1
Otherwise: x1=0
RXD
TXD
GND
COMPUTER/PRINTER
PIN 3
PIN 2
PIN 5
- WEIGHT DATA -
- WEIGHT UNIT -
Input
Output
-
k
g
p
CR
LF
USER MANUAL RTN ENG
Receiving data
Transmission data
Signal ground
59