Serial Communication
Output Types
VT400 Technical Manual, Rev. A5 45 Doc # UM-VT400-EN
Data Block Composition
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 Net weight 6 digits, including decimal point if any.
9 Sync Carriage return (0D hex) for end of transmission.
6.3.3 Print on Demand
Works With Port 1 (RS232). Weight data is transmitted every time a character is
received from a connected peripheral. The demand character is programmed using
setup parameter 2.C, e.g. “1” 49d or 31 hex.
6.3.4 Alibi Transmit
Works With Port 1 (RS232).
Transmits alibi serial number and gross weight for each transaction, when the PRINT
key is pressed. The record is transmitted in the following format:
SN 1234 012340 kgG
6.3.5 Alibi Mode Commands
When Alibi mode is active (2.t=03), these operations can be executed.
Transmit Displayed Weight
This is executed when ASCII character ? (3F hex) is received. The output data block
is as shown below:
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