Flintec DAS 72.1 User Manual
Page 43

GO
Get Peak to Peak value
Master ( PC / PLC ) sends
DAS 72.1 responds
Result
GO
¿
O+01.000
Peak to Peak value 1 000 d
GV
Get Valley value
Master ( PC / PLC ) sends
DAS 72.1 responds
Result
GV
¿
V+01.000
Valley value 1 000 d
GW
Get the “long” weight values (in a data string)
Command for output of the current net weight, gross weight, scale status and checksum values. No decimal
point is available in this data string.
Master ( PC / PLC ) sends
DAS 72.1 responds
Result
GW
¿
W+00100+01100010F
Explanation (see below)
The response is in the format W+00100+01100010F. The first two sections of the return string comprise the
net weight and gross weight results, followed by two hexadecimal characters, which represent two
bitmapped status indicators. The last two hexadecimal characters represent the checksum, which is the
inverse of the sum of all the ASCII values of the string, not including the checksum characters.
W
+00100
+01100
0
1
0F
leading character
signifies the GW
response
net weight
excluding decimal
point
gross weight
excluding decimal
point
first
bitmapped binary
value
second bitmapped
binary value
checksum
Status bit:
first bit
value
description
second bit
value
description
1
not used
1
no motion
2
output 1 active
2
zero action performed
4
output 2 active
4
tare active
8
output 3 active
8
not used
The checksum is derived as follows :
a. Add the ASCII values (in hex) of all the 15 characters in the string
b. Invert the hexadecimal value
c. Add one to the value
d. Use only the last two digits
e. Convert the hexadecimal value to characters
Manual DAS 72.1
Page 43