
Serial Communication
Output Types
VT200/220 Technical Manual, Rev 1.00.01
53
Doc
#
TM-VT200/220-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:
Must be always set to 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
“N”
Indicates that the preceding weight is net.
10-15
Net weight
6 digits, including decimal point if any.
16
“T” or “P”
“T” specifies that the preceding weight is a manual tare.
“P” specifies that the preceding weight is a preset tare.
17-22
Gross weight
6 digits, including decimal point if any.
23
“G”
Indicates that the preceding weight is gross.
24
Sync
Carriage return (0D hex) for end of transmission.
When Display Indication is Not Weight
When the indicator displays something other than weight, the data string to COM2
will be as follows:
|A|XXXX|TARE VALUE|T/P|GROSS VALUE|G|CR
“XXXX” in the format above will either be blank spaces, an error message, or the
menu currently accessed by the user.
6.3.4
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 in setup
3.t
: for example “1”, 49d, or 31 hex.