Price-compuing scale
RTN
The RTN Series of scales can be ordered with an optional RS232 output.
Speciications:
RS232 output of weighing data.
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ASCII code.
4800 Baud.
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8 data bits.
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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
User's guide
RXD
TXD
GND
COMPUTER/PRINTER
PIN 3
PIN 2
PIN 5
k
- WEIGHT DATA -
- WEIGHT UNIT -
Input
Output
-
g
p
CR
LF
ENG
FR
ES
8. RS232 OUTPUT
Receiving data
Transmission data
Signal ground
57