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20. COMMUNICATION PROTOCOL
20.1. General information
A. A character protocol scale-terminal has been designed
for communication between RADWAG scales and external
devices via RS-232 interface.
B. It consists of commands sent from an external device to the
scale and a responses from a scale.
C. Responses are sent every time after receiving a command
(reaction for any command).
D. Using commands allows users to receive some information
about the state of scale and/or influence the operation e.g.:
Requesting weighing results,
Display control,
20.2. A set of commands for RS interfaces
Commands
Description of commands
Z
Zeroing
T
Tarring
TO
Get tare
S
Send the stable result in basic unit
SI
Send the result immediately in basic unit
SU
Send the stable result in current unit
SUI
Send the result immediately in current unit
C1
Switch on continuous transmission in basic unit
C0
Switch off continuous transmission in basic unit
CU1
Switch on continuous transmission in current unit
CU0
Switch off continuous transmission in current unit
PC
Send all implemented commands
Notice:
1. Each command have to be terminated in CR LF;
2. The best Policy for communication is not sending another
command until the former answer has been received.
