8555-M512-O1 Rev E y MedVue MV1 Owner’s 43
WEIGHT ON DEMAND FORMATS
Weight on Demand
If the continuous output was not selected for the serial port, RS232 MOdE=0, the USB Device
port, USb MOdE=0 or the optional Ethernet/Wi-Fi port, ETHERNET MOdE=0 and the indicator is
connected to a computer for transmission of weight data to a PC-based EMR (electronic
medical record) software program, it will transmit a single set of weight data each time the
computer sends an weight request “ENQ” (hex 05) or a SMA weight request “W”. This is
known as Weight-On-Demand. Examples and explanation of the data format transmitted are
shown below.
<ENQ> - (Hex 05)
Character sent to the MedVue weight analyzer will respond with the following weight string:
Pxxxxxx^UU^M^SS^CR (no decimal point in weight)
PxxxxxxD^UU^M^SS^CR (decimal point in weight)
Where:
P = polarity (space if positive, - if negative)
xxxxxx = weight with leading spaces
D = decimal point (embedded where necessary)
^ = space (hex 20)
UU = units, upper case (LB, KG, TN, etc.)
M = mode, upper case (G=gross, N=Net)
SS = status, upper case (CZ=center-of-zero,
MO=motion, BZ=gross weight below zero
EE=entry - Input in progress, OC=over capacity)
CR = carriage return (hex 0D)
<LF>W<CR>
String sent to the MedVue weight analyzer will respond with the SMA weight string:
<LF>S1GM^DDDDDDDDDDUUU<CR>
Where:
<LF> = Line feed character (hex 0A)
S = Status (‘O’ = Over Cap, ‘Z’ = Center Zero, ‘U’ = Below Zero, ‘E’ = Error)
1 = The number ‘1’
G = Mode of operation (‘G’ = Gross, ‘N’ = Net, ‘T’ = Tare)
M = Motion bit (‘M’ = Motion, ‘ ‘ = Settled)
^ = Space
DDDDDDDDDD = Weight with decimal point if necessary
UUU = Units (e.g. ‘lb ‘, ‘kg ‘, ‘ton’, etc.)
<CR> = Carriage return (hex 0D)
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