Serial Data Formats
Full Duplex Overview:
The EL-3000 is equipped with a full duplex ASCII compatible RS-232C serial communications terminal
wired as a DB-9 type connector mounted on the back of the scale. Full Duplex mode is enabled by se-
lecting “0” for
A4
in the User Menu. The data format provides both Continuous and Demand serial
transmission modes, selectable by
A3
in the User Menu.
The Continuous mode is used to interface to computers, scoreboards, and other remote devices requir-
ing constant data updating. The transmission occurs at the end of each display update. Primarily de-
signed to interface to printers, the Demand mode allows control from a host device, usually a PC, and
can be activated by pressing the
MR
key on the front panel.
Full Duplex - Continuous Mode
<+/–>
XXXX.XXX
<UNITS>
<S1>
<ETX>
Polarity:
+ = Positive
– = Negative
Weight Data
Units:
OZ = ounces
End
Transmission
Status Character 1:
0 = valid
1 = Under
2 = Over
<LF>
Line
Feed
<LF>
Line
Feed
<S2>
Status Character 2:
0 = valid
1 = Motion
<STX>
Start
Transmission
LB = pounds
KG = kilograms
<G/N>
Gross/Net:
G = Gross
N = Net
2 = Zero
4 = Not Ready
3 = Motion and Zero
<SPACE>G = grams
<SPACE>% = percent
PC = pieces
Transcell Technology Continuous Format
1. Recognized host command(s):
"C" to change displayed units
"Z" to zero the scale
2. Restrictions for transmission: No transmission during Display Check Mode
"Z" Command:
Will not respond if the scale is in motion.
EL 3000 Operating Manual
11
