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SLAVE TRANSMISSION PROTOCOL
LIST OF THE CONTROLS AVAILABLE:
• Request of the current gross weight.
• Request of the current net weight.
• Request of the current peak value.
• Control of self-calibration.
• Control of semi-automatic zero.
• Control to reset the peak value.
The unit connected to the instrument (typically a personal computer) acts as a MASTER and is the only
unit that can start a process of communication.
The process of communication must be made by the transmission of a string by the MASTER, followed
by a reply from the SLAVE concerned.
CONTROLS FORMAT DESCRIPTION:
The double quotes enclose constant characters (observe upper and lower case); the <and> symbols
contain variable numeric fields.
REQUEST OF THE CURRENT GROSS WEIGHT
Master: <Addr> "L" EOT
DAT 200: <Addr> "L" <status> <gross> ETX <chksum> EOT
REQUEST OF THE CURRENT NET WEIGHT
Master: <Addr> "N" EOT
DAT 200: <Addr> "N" <status> <net> ETX <chksum> EOT
REQUEST OF THE CURRENT PEAK VALUE
Master: <Addr> "P" EOT
DAT 200: <Addr> "P" <status> <peak> ETX <chksum> EOT
CONTROL OF SELF-CALIBRATION
Master:
<Addr> "A" EOT
DAT 200: <Addr> "A" ACK EOT
CONTROL OF SEMI-AUTOMATIC ZERO
Master: <Addr> "Z" EOT
DAT 200: <Addr> "Z" ACK EOT
CONTROL TO RESET THE PEAK VALUE
Master: <Addr> "X" EOT
DAT 200: <Addr> "X" ACK EOT
In the case of communication error or otherwise unrecognized command from DAT 200, it will respond
with the following string:
DAT 200: <Addr> NAK EOT
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