USR-M511User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited 2
Contents
USR-M511 User Manual .......................................................................................................................................1
Features.....................................................................................................................................................................3
1. Get Start .................................................................................................................................................................4
1.1. Application Diagram................................................................................................................................4
1.2.Hardware Design ......................................................................................................................................5
1.2.1. Hardware Dimensions .................................................................................................................5
1.2.2. LED Indicator.................................................................................................................................6
1.2.3. DB9 Pin definition.........................................................................................................................6
1.2.4. DB9 Pinboard ................................................................................................................................6
2. Product Functions ...............................................................................................................................................8
2.1. Basic Functions.........................................................................................................................................8
2.1.1. Static IP/DHCP ...............................................................................................................................8
2.1.2. Hardware Restore default settings ............................................................................................9
2.1.3. Upgrade Firmware Version .........................................................................................................9
2.2. Serial port................................................................................................................................................10
2.2.1. Serial Port Basic Parameter......................................................................................................10
2.2.2. Serial Package Methods.............................................................................................................11
2.2.3. Baud Rate Synchronization.......................................................................................................11
2.3.Modbus protocol transmission.............................................................................................................11
2.3.1.Modbus Master.............................................................................................................................11
2.3.2.Modbus Slave ................................................................................................................................12
2.4. Modbus Slave management..................................................................................................................14
2.4.1.Modbus data monitoring.............................................................................................................14
2.4.2.Modbus data management .........................................................................................................15
2.5.Features ....................................................................................................................................................16
2.5.1. Network Identity Packet Function............................................................................................16
3. Parameter Setting..............................................................................................................................................17
3.1. Web Server Configuration ....................................................................................................................17
3.2. AT Command...........................................................................................................................................17
3.2.1. Serial AT Command ....................................................................................................................18
3.2.2. Network AT Command ...............................................................................................................18
4. Contact Us............................................................................................................................................................19
5. Disclaimer...........................................................................................................................................................19
6. Update History ...................................................................................................................................................19
