Technical Manual
Table Of Contents
- Wireless Sensor Interface A720 (addIT™)
- 1. About the A720
- 2. Hardware
- 4. Software
- 4.1. AMOS
- 4.2. Mode Check
- 4.3. A/D Task
- 4.4. The Terminal Task
- 4.5. The Radio Interface Task
- 4.5.1. Digital Squelch
- 4.5.2. Modulation Technique Used
- 4.5.3. Generic Format of a Radio Frame
- 4.5.4. Data Frames
- 4.5.5. Frame Types
- 4.5.5.1. Request
- 4.5.5.2. Broadcast Answer
- 4.5.5.3. Set I/O Request
- 4.5.5.4. Read I/O Answer
- 4.5.5.5. Broadcast Request
- 4.5.5.6. Ping
- 4.5.5.7. Pong
- 4.5.5.8. Memory Dump Request
- 4.5.5.9. Memory Dump Answer
- 4.5.5.10. Data
- 4.5.5.11. Set ID
- 4.5.5.12. Set Slot Time and Sample Rate
- 4.5.5.13. Set Frequency
- 4.5.5.14. Set Battery Charge Levels
- 4.5.5.15. Set Pulse Counters Parameters
- 4.5.5.16. General Acknowledge
51
The Radio Interface Task
“Generic Format of a Radio Frame” on page 44). An A720 will never issue this frame
type, but it will answer to it.
4.5.5.14. Set Battery Charge Levels
ID 43
FORMAT struct {
unsigned char chargeStart;
unsigned char chargeStop;
} setBattCharge;
DESCRIPTION
This frame requests a remote to change the battery charge management parameters.
The device will answer with a General acknowledge frame. An A720 will not issue
such a frame, but it will answer to it.
• chargeStart is the value where the external power (normally a solar panel)
will be enabled to charge the battery;
• chargeStop is the value where the external power will be switched off.
From the above two values, the system will compute all other limits (e.g. misery, bat-
tery low, etc.).
4.5.5.15. Set Pulse Counters Parameters
ID 44
FORMAT
DESCRIPTION
This frame will set the trigger level and the delay of the pulse counters of a remote.
The device will answer with a General acknowledge frame. An A720 will not issue
such a frame, but will answer to it.
Note: The format and description of this frame must be detailed later; it is not yet implemented.
4.5.5.16. General Acknowledge
ID 127
FORMAT struct {
int result;
} generalAck;
DESCRIPTION
This frame is sent as an acknowledge to various Set type of frames. The result field
is NULL if the request was successfully performed; in case of failure, this field may
contain information on the cause of the failure. Its value will depend from the type
of request requested.