Table of Contents
Advertisement
•
dd mm yyyy is the date
•
hh mm ss is the time
•
si is the size of the frame (21 for frame type 37, 13 for frame type 38)
•
ft is the frame type (37 for the A733, 38 for A732 and A731)
•
d1 d2 ... dn are the data values (the frame content)
•
cs is a 16-bit checksum obtained by summing the bytes and discarding the
carries over 0xFFFF
The A733 devices always respond with a type 37 data frame. The A731 and A732
respond with a type 38. The composition of the data blocks of such frames (the
values marked as d1, d2... dn) is depicted in Fig. 15, while the digibyte is depicted
in Fig. 16.
A733
RF incoming
RF outgoing
Digibyte
I/O A Pulse Counter
I/O B Pulse Counter
I/O C Pulse Counter
I/O D 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 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
Fig. 15:
b7
SC
Dig6 Dig5 Dig4 Dig3 Dig2 Dig1 Dig0
SC-Battery Charge (0-off, 1-on)
A732 / A731
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
Frame 37 (left) and Frame 38 (right) description
Dig n – Digital I/O n
Fig. 16:
The Digibyte
Performing Advanced Functions
b0
37
Advertisement
Table of Contents
