Flintec FDT-B - Manual (Page 21)

FLINTEC
Document Date Code Rev. Page
FDT – VERSION A/B – TECH. -REFERENCE MANUAL 05.04.99 FDT.RM 2 21 of 23
B . SCALE B
Select scale B in a multi scale network.
Master transmission:
STX ADD B BCS2 BCS1 ETX
FDT response:
STX ADD ACK BCS2 BCS1 ETX
C .
SCALE A+B
The sum of the weights on scales A and B is returned.
Master transmission:
STX ADD C BCS2 BCS1 ETX
FDT response:
STX ADD ACK BCS2 BCS1 ETX
F .
FORMAT CUSTOM DOWNLOAD
The commands is used to download custom print formats to FDT.
Master transmission: where 1=format1
STX ADD F 1 BCS2 BCS1 ETX
FDT response:
STX ADD ACK BCS2 BCS1 ETX
To indicate that it is ready to receive a continuous string.
When ACK block from the FDT is received the master should start transmittion of the string.
The FDT remains in the receive mode until P is pressed on the keyboard.
No characters exceeding the full length (512b)will be received.
? UPLOAD WEIGHT
Returns the current displayed weight plus status or with a message if bit0 of status byte is ‘1’.
In the normal state the FDT will respond within 3-4 character times.
(e.g. With 9600baud, the character time
≈
1 msec, the master should expect reception of STX
from the FDT within 5 msec after the ETX was transmitted from the master).
Master transmission
STX ADD ? BCS2 BCS1 ETX
FDT response
STX ADD ? STATUS BYTE x x x x x x BCS2 BCS1 ETX
where ? is replaced in scale A,B mode. 1=scale A, 2=scale B, 0=A+B
and xxxxxx = Weight if bo of status byte is zero , or Message if bo of status byte is one.
STATUS BYTE
b7 b6 b5 B4 b3 b2 b1 b0
Zero or
Parity 1 Sign of weight
0=+ 1=- No Motion
0=NO,
1=YES Out of range
0=NO
1=YES Autozero
0=NO
1=YES 0=Gross
1=Net 0=Normal Weight
1=No Weight Display