Inhaltsverzeichnis
DS 400 Side 2 of 36
II. Table of Contents
I. Foreword ....................................................................................................................... 1
II. Table of Contents ...................................................................................................... 2
1 Safety Instructions ........................................................................................................ 4
2 Instructions ................................................................................................................... 5
2.1 Definitions and abbreviations ................................................................................................ 5
2.2 References ............................................................................................................................... 5
3 Technical data DS 400 .................................................................................................. 6
3.1 DS400 MODBUS RTU specification....................................................................................... 6
3.2 DS400 MODBUS/ TCP specification ...................................................................................... 6
3.3 General Modbus Information ................................................................................................. 6
3.3.1 Serial transmission modes (RTU) ...................................................................................... 7
3.3.2 Ethernet transmission modes ............................................................................................ 7
4 Installation ..................................................................................................................... 8
4.1 RS485 bus wiring (Modbus RTU) – Connection diagram connector „E“ ......................... 8
4.2 Ethernet connection for Modbus/TCP .................................................................................. 9
5 Modbus RTU communication settings .......................................................................10
5.1 Accessing and changing Modbus settings ........................................................................ 10
6 Modbus TCP communication settings .......................................................................11
7 Modbus addressing model ..........................................................................................12
7.1 Function Code 3 (Read holding register) ........................................................................... 12
7.2 Function code 16 (Write multiple registers) ....................................................................... 13
8 Modbus Holding Register ............................................................................................14
8.1 Basic Values Register .......................................................................................................... 14
8.2 Values register ...................................................................................................................... 15
8.3 Status register ....................................................................................................................... 18
8.3.1 Status register Values 1..4 ............................................................................................. 18
8.3.2 Status register Values 5..8 ............................................................................................. 20
8.4 Channel description.............................................................................................................. 22
8.5 Alarm Settings ....................................................................................................................... 26
8.6 Value extended ...................................................................................................................... 27
8.7 Data format test ..................................................................................................................... 29
8.8 Data Bit description .............................................................................................................. 30
8.9 User Units .............................................................................................................................. 32
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