Figure 10-2 - Slave With No Response
Figure 10-3 - Slave With Busy/NACK
10.3.2 Read Device Settings
This frame is used to Read the device settings and the Smartphone/PC will
send this under following conditions.
1. Smartphone will send this once the application completes the connection
process with the UWBT device.
2. PC will send this request once it is connected to UWBT device.
Read Device Settings String Format (PC/Smartphone)
%0 0 501<CR>
UWBT Device Response To Read Device Settings String
On receiving this string from Smartphone the UWBT device sends Device
settings frame
Packet
Header
SA
DA
Command
Length
Byte 1 –
Byte 2
Byte 3
Byte
4
Byte 5
Byte 6 -
Byte 7
Byte 8
- Byte
9
0xA5
0x00 0x00
0x2F
Firmware
version
UWBT
Device
model
Sensor
Type
Sensor
Subtype
Temperature
Zero Offset
correction
pH/RH
Zero
Offset
Correc-
tion
Value
Byte 10
-Byte 11
Byte12
- Byte
13
Byte 14 -
Byte 15
Byte
16 -
Byte
17
Byte 18
-Byte 19
Byte 20
- Byte
21
Byte 22
Byte 23
Byte 24
Temperature
Low alarm
value
RH or
pH low
alarm
value
Temperature
High alarm
value
RH or
pH High
alarm
value
Temperature
dead band
value
RH or
pH dead
band
value
Engineering
unit & RTC
set status
Sampling
Rate
Temperature
coefficient
type for RTD/
Temp Model
Table 10-4. Frame Format Of Read Device Settings
Communication Protocol
10
10-6
Slave
100 ms
100 ms
100 ms
100 ms
Master
Busy/NACK
Busy/NACK
Busy/NACK
Busy/NACK
Busy/NACK
Data request
Data request
Data request
Data request
Data request
Slave
Master
