Cardinal 6745, Operating Manual

Page: 13 / 28

8535-M074-O1 Rev C

6745 Baby Scale Operation
9
PRINTER OUTPUT
The Model 6745 Baby Scale has a RS-232 serial port that may be connected to an optional
printer to record weight. The output connector is located on the rear panel (see Figure No. 6).
When the weight display is locked on the baby’s weight and the Weight Lock annunciator is
turned on, the weight data may be transmitted by pressing the
PRINT
key or on demand with
receipt of a command from a computer).
NOTE:
If the threshold feature was enabled during
setup and calibration, with a printer attached to the scale, the weight data will automatically
print when the weight display locks on the baby’s weight.
Figure No. 6
The serial port can be configured during the setup and calibration procedure or during the
setup review operation. Using either method, it is possible to select the baud rate, data format
and print ticket format.
NOTE:
The scale is shipped with the baud rate set to 9600 baud.
SERIAL DATA FORMAT
If the scale is connected to a computer, it will transmit a single set of weight data each time the
computer sends an ENQ (hex 05) or a SMA weight request (W). Examples and explanation of
the data format transmitted are shown below.
The host device (computer) sends:
ENQ (hex 05) or <lf> W <cr>.
The scale will respond with:
<lf><s><r><n><m><xxxxxxxxxx><uuu><cr>.
Where:
lf = Line Feed
s = Flags Z= center of Zero
O = Over cap
E = zero Error,
e = weight not currently being displayed
r = Range 1, 2, 3, ...
n = Mode G = Gross
m = Motion M = Motion, " "( blank ) = no motion
xxxxx:xx.x =
xxxxxx.xxx = Weight Ten digits (includes decimal point), lb/oz mode
Ten digits (includes decimal point), kg mode
Weight is right justified.
uuu = Units l/O^ (lb & oz), kg^ (kilograms), (^ = space)
cr = Carriage Return (hex 0D)
PIN NO. FUNCTION
2
DATA INPUT (RXD)
3
DATA OUTPUT (TXD)
5
SIGNAL GROUND (GND)
1
5
6
9