
CHAPTER 3
Advanced Functions
96
};
DESCRIPTION All values are 8 bits and must be converted accordingly,
depending on the sensor connected. Figure 24 shows the
placement of various inputs on the connectors.
Figure 24. A720 Connector Inputs
The RF level is non-linear and results from a table (which you can
get from Adcon as an ASCII file). The value of the battery can be
computed as follows:
The digibyte is essentially the reflection of several inputs or internal
status bits on the A720; its structure is described below:
For more details, refer to the user manual for the A720 device.
The A723 (addIT series 3) Frames
The addIT series 3 implements currently two frame types,
depending on the compatibility mode flag: 38 (described on
page 95) and 39. For more details about the compatibility flag,
refer to the A720 series user manual.
There is, however, a fundamental difference between frame 39 and
the previously described data frames. The A723 samples the
Analog1
Analog2
Analog3
Ground
Power
DIG0
PulseCounter0
1
2
3
4
5
6
7
Analog4
Analog5
Analog6
Ground
Power
DIG1
PulseCounter1
1
2
3
4
5
6
7
I/O A
I/O B
A720
Batt
V[]
BatteryLevel 20•
255
----------------------------------------------=
B7 B6
B5 B4
B3 B2
B1 B0
S.C.
res
res res res
res DIG1 DIG0
S.C. = Solar Cell status res = reserved
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