Table of contents
DS 500 V1.13 Side 3 of 50
II. Table of contents
I. Foreword ....................................................................................................................... 2
1Safety instructions........................................................................................................ 5
2Instructions................................................................................................................... 5
2.1 Definition and abbreviation.................................................................................................... 6
2.2 References............................................................................................................................... 6
3Technical data DS 500.................................................................................................. 6
3.1 DS500 MODBUS RTU specification....................................................................................... 6
3.2 DS500 MODBUS/ TCP Specification ..................................................................................... 7
3.3 General Modbus Information................................................................................................. 7
3.3.1 Serial transmission modes (RTU)...................................................................................... 7
3.3.2 Ethernet transmission modes............................................................................................ 8
4Installation..................................................................................................................... 9
4.1 RS485 bus wiring (Modbus RTU) –Connection diagram DS500V1................................... 9
4.1.1 Settings Switch S4.1.......................................................................................................... 9
4.2 RS485 bus wiring (Modbus RTU) –Connection diagram DS500V2................................. 10
4.3 Bus cable ............................................................................................................................... 11
4.4 Ethernet connection for Modbus/TCP ................................................................................ 11
5Modbus RTU communication settings.......................................................................12
5.1 Accessing and changing Modbus settings........................................................................ 12
6Modbus TCP communication settings .......................................................................14
7Modbus addressing model..........................................................................................15
7.1 Supported data formats ....................................................................................................... 15
7.2 Function Code 3 (Read holding register) ........................................................................... 16
7.3 Function code 16 (Write multiple registers)....................................................................... 16
8Modbus holding register .............................................................................................17
8.1 Basic Values Register .......................................................................................................... 17
8.2 Register Channel Values...................................................................................................... 18
8.2.1 Register Channel values 1…4 (first page)....................................................................... 19
8.2.2 Register Values Channel 5…8 (2nd page) ....................................................................... 22
8.3 Status register....................................................................................................................... 25
8.3.1 Status register channel values 1..4 ................................................................................ 25
8.3.2 Status register values 5..8 ............................................................................................... 28
8.5 Channel description.............................................................................................................. 31
8.6 Alarm Settings....................................................................................................................... 39
8.7 Register Value extended ...................................................................................................... 42
8.8 Data format test..................................................................................................................... 44
8.9 Data Bit description .............................................................................................................. 45
8.10 User Units........................................................................................................................... 47
9Appendix ......................................................................................................................50
