Contents
1. Introduction................................................................................................................................... 1
1.1 Overview ................................................................................................................................ 1
1.2 Specification.......................................................................................................................... 2
1.3 Hardware ............................................................................................................................... 3
1.4 Get Started ............................................................................................................................ 3
1.4.1 Hardware Connection ............................................................................................. 4
1.4.2 Search Device........................................................................................................... 4
1.4.3 Configure Socket...................................................................................................... 4
1.4.4 Communication Test................................................................................................ 5
2. Functional overview.................................................................................................................... 6
2.1 Serial Port .............................................................................................................................. 6
2.1.1 Parameters of Serial................................................................................................ 6
2.1.2 Framing Method ....................................................................................................... 7
2.1.3 Operating Mode........................................................................................................ 7
2.2 Ethernet.................................................................................................................................. 8
2.3 Data Transmission............................................................................................................... 9
2.3.1 TCP Client/Server .................................................................................................... 9
2.3.2 UDP Client/Server.................................................................................................. 10
2.3.3 HTTP Client ............................................................................................................. 12
2.3.4 Heartbeat Packet and Identity Register Packet .............................................. 14
2.3.5 Modbus TCP and RTU Converter ...................................................................... 15
2.4 Advanced Features............................................................................................................ 16
2.4.1 Data Cache.............................................................................................................. 16
2.4.2 Search Device......................................................................................................... 16
2.4.3 LAN AT Command .................................................................................................17
2.4.4 Upgrade.................................................................................................................... 17
2.5 Restart when Received Timeout .................................................................................... 18
3. Parameters Configure.............................................................................................................. 19
3.1 Web Page ............................................................................................................................ 19
3.1.1 State Page ............................................................................................................... 19
3.1.2 System Page........................................................................................................... 19
3.1.3 Port Page ................................................................................................................. 20
3.2 AT Command ...................................................................................................................... 20
3.2.1 Rule of Serial AT..................................................................................................... 20
3.2.2 AT Command Error Code ..................................................................................... 21
3.2.3 Common commands ............................................................................................. 21
3.2.4 Commands in Detail .............................................................................................. 22
