Cautions before using ............................................................................................................................... ⅰ

Chapter 1 Communications ........................................................................................................................ 1

1.1 Communication Procedures .................................................................................................................... 1

1.2 Communication timing ............................................................................................................................. 1

1.3 MEWTOCOL Communication .................................................................................................................. 2

1.3.1 Overview of MEWTOCOL-COM (RS485) ...................................................................................... 2

1.3.2 Data Register List ........................................................................................................................... 3

1.3.3 Error Codes .................................................................................................................................. 55

1.3.4 Command ..................................................................................................................................... 56

1.4 MODBUS (RTU) Communication .......................................................................................................... 58

1.4.1 Overview of MODBUS (RTU) ....................................................................................................... 58

1.4.2 Data Register List (MODBUS communication) ............................................................................ 61

1.5 DL/T645-2007 communication ............................................................................................................. 120

1.5.1 Overview of DL/T645-2007 ........................................................................................................ 120

1.5.2 Data list ....................................................................................................................................... 126

Chapter 2 How to install USB driver....................................................................................................... 146

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