Technical Manual
Table Of Contents
- 1. Introduction
- 2. Hardware
- 3. The A431 Radio Module
- 3.1. About the A431 Radio Module
- 3.2. Functional description
- 3.3. Manufacturing Issues
- 3.3.1. Marking and labeling issues
- 3.3.2. Alignment Range and Switching Range
- 3.3.3. Tuning Procedure
- 3.3.4. Setting Up the Default Parameters
- 3.3.5. Definitions
- 3.3.6. Test Equipment Settings
- 3.3.7. Trimming Elements
- 3.3.8. Adjusting the Receiver Front End
- 3.3.9. Adjusting the VCOs
- 3.3.10. Adjusting the Crystal Reference
- 3.3.11. Checking the Receiver Parameters
- 3.3.12. Checking the Transmitter Parameters
- 3.3.13. Data Transfer Check
- 3.4. PCB Parts Placement
- 3.6. Frequency Reference Specifications
- 3.7. A431 Module’s Photographs
- 4. Software
51
Commands
The A733 devices always respond with a type 37 data frame (see also “Data12” on
page 62). The composition of the data block of such a frame (the values marked as
d1, d2... dn) is depicted in Figure 28, while the digibyte is depicted in Figure 29.
Figure 28. Frame 37 description
Figure 29. The Digibyte
The remote version is limited to a single frame. An example of such a command is
given below:
9999 DATA 9999 30/9/1999 14:50:00
9999 DATA
30 9 1999 14 54 55 21 37 255 255 77 0 0 0 0 89 156 126 20 0 0 0 0 0 0 0 0 0 3197 0
#
Notice that if you need to get data that is not the last (newest) slot remotely from a
device, the ID must be supplied twice. If you need to get the last slot stored, you
can ignore the ID and the date/time parameters:
9999 DATA
9999 DATA
13 9 1999 19 26 36 21 37 255 255 79 0 0 0 0 87 148 149 15 0 0 0 0 0 0 0 0 0 3148 0
RF incoming
RF outgoing
Digibyte
I/O A Pulse Counter
I/O B Pulse Counter
Battery
I/O A Cabling 1
I/O A Cabling 2
I/O A Cabling 3
I/O B Cabling 1
I/O B Cabling 2
I/O B Cabling 3
I/O C Pulse Counter
I/O D Pulse Counter
I/O C Cabling 1
I/O C Cabling 2
I/O C Cabling 3
I/O D Cabling 1
I/O D Cabling 2
I/O D Cabling 3
b7 b0
SC Dig 6 Dig 5 Dig 4 Dig 3 Dig 2 Dig 1 Dig 0
SC — Battery charge (0–off, 1–on)
Dig n — Digital I/O n