Hardy Instruments A Series - Zero Command (ZEROCMD); Tare Command (TARECMD)

HI 1756-WS WEIGH SCALE MODULE
4-12
Reply data contains 3 fields
• Command (DINT): The command number
• Channel (DINT): The channel number
• Status (DINT): Status information
NOTE: Some commands will produce longer replies.
Zero Command
(ZEROCMD)
The Zero Command requests that the current gross
weight be set to zero.
Command Number: 1 (Hexadecimal)
Channel Number: 0 or 1
Number of Elements: 8
Error Return Values:
• OUTOFTOLERANCE - the current weight
value is beyond the limits set by the zero toler
-
ance parameter.
NOTE: The amount of weight zeroed off is cumulative. The
Autozero command will fail if the current gross weight
plus any previously zeroed amount exceeds the zero
tolerance value.
• “STATUSWORD” - the command failed
because either the weight was not stable (in
motion) or there was some kind of A/D error.
Tare Command
(TARECMD)
The Tare Command requests the current net weight be
set to zero.
Command Number: 2 (Hexadecimal)
Channel Number: 0 or 1
Number of Elements: 8
Error Return Values:
• “STATUSWORD” - the command failed
because either the weight was not stable (in
motion) or there was some kind of A/D error.