An RS232 lead with the following connection will
be required to link the instrument with the PC
serial input.
Scale
PC
(3.5 mm jack plug)
(9W 'D" Connector)
Center Pin........................................ Pin 4
Ground/shield......................................Pin 2
2.2 K
resistor
Pin 5
The 16 digit data stream will be displayed in the following
format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each digit indicate the following status :
D15
Start Word
D14
4
D13
1
D12, D11
Annunciator for Display
g = 57
oz = 58
count = 30
D10
Polarity
0 = Positive
1 = Negative
D9
Decimal Point(DP), position from right to the left
0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D8 to D1
Display reading, D1 = LSD, D8 = MSD
For example :
If the display reading is 1234, then D8 to D1 is :
00001234
D0
End Word
RS232 FORMAT : 9600, N, 8, 1
Baud rate
9600
Parity
No parity
Data bit no. 8 Data bits
Stop bit
1 Stop bit
11
1109-GM300P
