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Circuit diagram
Data format
S T
,
+
0
0
0
0
0
.
0
0
_
k
g C
R
L
F
Header Data Unit Terminator
There are 3 headers for the weighing data.
ST:
Stable weighing data
US: Unstable weighing data
OL: Out of weighing range
The data consists of 9 characters including polarity and decimal point.
There are 5 units.
_ k g: Weighing unit “kg”
_ _ g: Weighing unit “g”
_ l b: Weighing unit “lb”
_ o z: Weighing unit “oz”
_ _ %: HI/LO limit % (F07-2)
Example of data
Weighing data “kg” (+)
S T
,
+ 0 0 1 2
.
3 4 5 _ k g
C
R
L
F
Weighing data “g” (-)
S T
,
- 0 0 0 0 1 2 3 4 _ _ g
C
R
L
F
Solid sate relay
1 Receive data RXD
2 Transmit data TXD
3 Data set ready DSR
4 Signal ground SG
5 Shield SHLD
6 Frame ground FG
1 Relay output HI
2 Relay output LO
3 Relay output OK
4 Relay common COM
FS-
i
inside
FS-
i
is designed as DCE (Data Communication Equipment).
