Table Of Contents - Ebyte Wireless Modem User Manual

Table of Contents

Chengdu Ebyte Electronic Technology Co., Ltd.

1. Overview .................................................................................................................................................................... 3

1.1 Introduction ...................................................................................................................................................... 3

1.2 Features ............................................................................................................................................................ 3

2. Quick Start ..................................................................................................................................................................3

2.1 Preparation ........................................................................................................................................................3

2.2 Operation demonstration ..................................................................................................................................4

3. Technical indicators ....................................................................................................................................................6

3.1 General Specifications ..................................................................................................................................... 6

3.2 GPS performance ............................................................................................................................................. 6

3.3 Mechanical dimension drawing ....................................................................................................................... 7

3.4 Pin and Indicator light Definitions ...................................................................................................................8

4. Modbus Register .........................................................................................................................................................9

4.1 Communication Protocol ................................................................................................................................. 9

4.2 Register description ..........................................................................................................................................9

4.3 Register table ....................................................................................................................................................9

5. Use of Modbus RTU ................................................................................................................................................ 11

5.1 Holding Registers ...........................................................................................................................................11

5.2 Read Holding Register Instruction .................................................................................................................11

5.2.1 Read version number .......................................................................................................................... 11

5.2.2 Read device address (broadcast) ......................................................................................................12

5.2.3 Read device baud rate ...................................................................................................................... 12

5.2.4 Read parity ....................................................................................................................................... 12

5.2.5 Read positioning data（RMC） .........................................................................................................13

5.3 Write Holding Register Instructions .............................................................................................................. 14

5.3.1 Modify device address (broadcast) ..................................................................................................... 14

5.3.2 Modify baud rate ................................................................................................................................. 15

5.5.3 Modify the parity .................................................................................................................................15

Revise history ............................................................................................................................................................... 15

About us ........................................................................................................................................................................16

E108-D01 User Manual