•
Time (7 Bytes)
: unsigned integer, HEX, Ex
：
0x14 0x02 0x14 0x04 0x0f 0x3B 0x01 = DEC
20,02,20,04,15,59,01 year
-
month
-
day
-
weekday
-
hour
-
minute
-
second
Year 2020, Feb, 20, Thursday, 15:59:01
•
Sensor (8Bytes):
type string, ASC II Code, pattern “test” = 0x74 0x65 0x73 0x74 0x0 0x0
0x0 0x0
•
Modbus ID (1Byte)
: unsigned integer, HEX Format. Ex. ID 250 =
-
>0xFA, ID 188 => 0xBC
•
Reg. Address (2 Bytes): type: unsigned integer, Little endian, DEC Format. Ex. Reg. Addr.
510
-
> Hex 0xf5,0x01
•
Count of Register (1Byte)
: unsigned integer, HEX, Ex: 10, Data width is 2Byte/Per
Register plus 10 = 20Bytes
•
Data Payload
: format defined by Modbus RTU Slave device, and data forward in HEX
code, Little Endian mode
•
0xaa
= End Symbol
The LR100 also send Heart
-
Beat to Gateway. The Heart
-
Beat Format as following.
2x2 Bytes
7 Bytes
6 Bytes
2xPreambles
Time
“online”
•
Preamble:
2 Bytes per preamble, and send 2 Preambles with 0x0485
•
Time (7 Bytes) :
unsigned integer, HEX code. Ex
：
0x14 0x02 0x14 0x04 0x0f 0x3B 0x01 =
DEC 20,02,20,04,15,59,01 year
-
month
-
day
-
weekday
-
hour
-
minute
-
second =>Year 2020,
Feb, 20, Thursday, 15:59:01
•
