Serial Communication
Output Formats
VT300 Technical Manual, Rev. A4
49
Doc
#
TM-VT300-EN
6.3.4
Alibi Transmit
Works With Ports
Port 1 (RS232).
Description
Alibi mode can be set in
SYSTEM
>
SET
>
1COM
>
OPERATION: ALIBI
. When the
key is pressed, the record is transmitted in the following format:
1234 _ 012340kg G
6.3.5
Alibi Mode Commands
The following operations can be executed in Alibi mode.
Transmit Displayed Weight
This is executed when the ASCII character “?” (3F hex) is received. The output data
block is as shown below:
Byte Name
Description
1
Weight status
Bit 0:
0=Normal
Bit 1:
0=Gross
Bit 2:
0=No Auto zero
Bit 3:
0=Within range
Bit 4:
0=No standstill
Bit 5:
0=Normal
Bit 6:
Always 1
Bit 7:
Zero or parity
1=No weight display
1=Net
1=Auto zero
1=Out of range
1=Standstill
1=Under minimum weighing range
2 Polarity
“+”
or
“-”.
3-8
Weight
6 digits, including decimal point if any
9
Sync
Carriage return (0D hex) for end of transmission.
Command “ZERO”
Equivalent to pressing the front panel ZERO key. This is executed when ASCII
character 0 (30 hex) is received. No data is returned to the host. Execution of the
command may be verified by examining the weight (command “?”).
