Serial Communication
Output Types
VT200/220 Technical Manual, Rev 1.00.01
52
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TM-VT200/220-EN
Two-Scale Operation
When two scales are connected to the indicator, both their weights are transmitted
continuously in the format
P+123.45 P+678.90CR.
In each pair, the first block
transmitted is the weight of the first scale, and the second block transmitted is the
weight of the second scale.
For this mode of operation, the parameter settings are
SETUP
>
SETUP 2:
2.t=22,
and
SETUP
>
SETUP 3:
3.t=11.
The format of the data block, for each scale, is 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
Indicated weight
6 digits, including decimal point if any.
9
Sync
Carriage return (0D hex) for end of transmission.
6.3.3
Continuous Weight With Tare
Works with port 2 (RS232 or RS485).
This option can be programmed by setting setup parameter
3.t
to 06
. The weight
indication of each scale is transmitted continuously along with its current tare and
gross weight. The format is:
P+123.45N010.00(T/P)133.45G
Where the characters indicate:
N
for Net weight.
G
for Gross weight.
T
for the Tare weight when the scale was manually tared, or
P
for the tare weight
when the tare was preset either from the device or from a PC.