350-10 Series Digital Wheelchair Scales
10
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4.0
Communication
The unit comes with an RS-232 port that enables weight data to be transmitted to other equipment, such as a computer or
printer. The RS-232 cable with DB-9 connector (PN 100719) is available from Rice Lake Weighing Systems. That connection is
shown in USB Connection section on the next page.
The RS-232 parameters are:
• 9600 baud (selectable in the programming mode)
• 8 data bits
• 1 stop bit
• no parity
• no handshaking
There are three methods of communication:
• Push-button keypad print
• Standard remote protocol
• Escape protocol
4.1 Push-button Keypad Print
With a stable, in-range weight, press and hold
for at least three seconds, or until the scale emits two quick beeps.
If the scale does not beep after five seconds, release
as the weight was either in motion or out of range.
If displaying weight and not BMI, the scale will send out the following 21 character string:
xxxxxxxxx<SP>uu<SP>mmmmm<SP><CR><LF>
Table 4-1. Print Format Tokens
Example:
-10 Lb net = <SP><SP><SP><SP>-10.0<SP>lb<SP><SP>Net<SP><SP><SP><CR><LF>
10 Lb gross = <SP><SP><SP><SP><SP>10.0<SP>lb<SP>Gross<SP><CR><LF>
• The scale will send out the following data while in
BMI
mode (displaying the BMI value):
Table 4-2. BMI Data
Token
Description
xxxxxxxxx
Weight with decimal point and “-” sign
<SP>
Space
uu
Unit - lb or kg
mmmmm
Mode - gross or net
<CR>
Carriage return
<LF>
Line feed (moves cursor down to the next line)
Setting
Value
Gross Weight
215 Lb
Tare Weight
0.0 Lb
Net Weight
215 Lb
Patient Height
6-01.0 ft
Patient BMI
28.4
Note
