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iwitec Confidential Documentation 4
3.1.
Data Format
There are 3 uplink will be sent by LAS-603, temperate report, status report and temperature alarm. The
format of these 3 reports are described at following.
3.1.1.
Temperature Report
Temperature report is sent by LAS-603 at every predefined period. The period can be changed by downlink
command. The length of temperature report depends on how many temperature records in a single report.
3.1.2.
Status Report
Status report is sent by LAS-603 at power-on and when LAS-603 getting downlink command.
3.1.3.
Temperature Alarm
Temperature alarm is sent by Las-603 when the read temperature is out of allowable range.
Temperature
(2 Bytes)
Temperature Alarm
FPort: 202
Temperature: Signed integer, big-endian, multiplies 10.
EX: 0x00 0xEC
23.6
°
C
TX Period
(1 Byte)
Detection Period
(1 Byte)
Lowest Allowable
Temp. (2 Bytes)
Status Report
FPort: 201
Temperature: Signed integer, big-endian, multiplies 10.
EX: 0x00 0xEC
23.6
°
C
Highest Allowable
Temp. (2 Bytes)
TX Period: Unsigned integer presents period of temperature report in hour, can be 1 to 24.
Detection Period: Unsigned integer presents period of temperature detection in minute, can be 1 to 30.
Battery
(1 Byte)
Temperature
(2 Bytes)
Temperature
(2 Bytes)
. . .
Temperature Report
FPort: 200
Battery: The most significant bit indicates low voltage.
The least significant 7 bits is battery voltage multiplying 10.
EX: 0x98 (1001 1000)
low voltage and 2.4v
Temperature: Signed integer, big-endian, multiplies 10.
EX: 0x00 0xEC
23.6
°
C