Gicam WIN6, Manual

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Serial protocol
Continuous transmission protocol
This protocol is used for continuous transmission, usually towards the repeater panel.
COMMUNICATION PARAMETERS ARE SELECTABLE (see serial menu on page 39)
STRING TRANSMITTED AT A FREQUENCY OF 10 Hz:
STX <state> <net> ETX <csum> EOT
<state> = character coded as in the following table (bit = 1 if condition TRUE)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 1 1
Tare in-
sertet
Minimum
weighing
Weight
stable
Center
zero
<netto> = fields consisting of 8 ASCII characters with the weight value justified on the right.
In overweight conditions, the field assumes the value: “^^^^^^^^”.
In underweight conditions, the field assumes the value: “_ _ _ _ _ _ _ _”.
Under weight reading error conditions, the field assumes the value: “ O-L ”.
<csum> = checksum of string data. It is calculated by executing the exclusive OR (XOR) of all the characters
from STX (or from <Ind>) to ETX excluding the latter; the result of the XOR is decomposed into 2 characters
considering separately the 4 upper bits (first character) and the lower 4 bits (second character); the 2 charac-
ters obtained are then ASCII coded; (example: XOR = 5Dh; <csum> = "5Dh" that is 35h and 44h).
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