12
USER MANUAL
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Computer cooperation protocol:
A scale sends data with following settings:
Communication parameters: 8 bits, 1 stop bit, no parity, baud rate 4800bps.
Available orders and scale responses:
initialising signal (data send order):
Computer→Scale: S I CR LF (53h 49h 0Dh 0Ah),
Scale→Computer: scale response according to description below (16 bytes),
Description of response bytes:
Byte 1 - sign or space
Byte 2 - space
Byte
3÷4
- digit or space
Byte 5÷9 - digit, decimal point or space
Byte 10 - digit
Byte 11 - space
Byte 12 - k, l, c, p or space
Byte 13 - g, b, t, c or %
Byte 14 - space
Byte 15 - CR
Byte 16 - LF
scale tarring (calling
→
T
←
key press):
Computer→Scale: S T CR LF (53h 54h 0Dh 0Ah),
Scale→Computer: without response,
scale turning on / off (calling
I/
key press):
Computer→ Scale: S S CR LF (53h 53h 0Dh 0Ah),
Scale →Computer: without response,
scale zeroing (calling
→
0
←
key press):
Computer→ Scale: S Z CR LF (53h 5Ah 0Dh 0Ah),
Scale →Computer: without response,
entering to special function menu (calling MENU key press):
Computer→ Scale: S F CR LF (53h 46h 0Dh 0Ah),
Scale →Computer: without response,
setting low threshold value:
Computer→ Scale: S L D1...DN CR LF (53h 4Ch D1...DN 0Dh 0Ah)
D1...DN – threshold value, maximum 8 characters („-” – negative value, digits,
dot – decimal separator), number of digits after dot should be the same as on
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