E850-DTU(4440-GPRS) datasheet
Copyright ©2012–2018
,成都亿佰特电子科技有限公司
25
40124(0x007B)
40125(0x007C)
40126(0x007D) -- 40145(0x0090)
40146(0x0091)
Type
Length
Registration packet value
Registration packet
mechanism
00 01
00 0A
41 42 43 44 45 46 47 48 49 4A
00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00
00 01
The registration package mechanism has five modes:
Registration package
mechanism register value
(0x0091)
Description
00 00
Close the registration package mechanism
00 01
Add MAC/IMEI as registration packet data before each packet is sent to
the server.
00 02
Add user-defined registration package data before each packet is sent to
the server
00 03
Send a MAC/IMEI registration package only when connecting to the
server for the first time
00 04
Send a user-defined registration package only the first time connected to
the server
Modbus RTU protocol write registration packet register:
Send
01
10
00
7B
00 17
2E
00 01 00 0A 41 42 43 44 45 46 47 48 49 4A 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
01
00
F4
Device
ModB
us
addres
s
Fun
ctio
n
cod
e
Addr
ess
Regist
er
length
Byt
es
Write value
CRC
code
Rece
ive
01
10
00 7B
00 17
F0 1E
Device ModBus
address
Function
code
Address
Register length
CRC code
Modbus TCP protocol write registration packet register
:
S
e
n
d
00
01
00
00
00
33
01
10
00
7B
00 17
2E
00 01 00 0A 41 42 43 44 45 46 47 48
49 4A
00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 01