VLT® Serie 2800 and VLT® Serie 6000 Modbus RTU
å Contents
Overview
............................................................................................................. 5
Introduction ............................................................................................................ 5
About This Manual ................................................................................................. 5
Assumptions .......................................................................................................... 5
What You Should Already Know ............................................................................. 5
Modbus RTU Overview .......................................................................................... 5
VLT 2800 and VLT 6000 with Modbus RTU ............................................................ 6
Installation and Setup .................................................................................. 7
Network Connection ............................................................................................. 7
Hardware Setup VLT 2800 ..................................................................................... 8
Hardware Setup VLT 6000 ..................................................................................... 8
EMC Precautions ................................................................................................... 8
Modbus RTU Programming ....................................................................... 9
VLT 2800 Parameter Settings for Modbus Communication ..................................... 9
VLT 6000 Parameter Settings for Modbus Communication ..................................... 11
Network Configuration ................................................................................. 13
Remote Terminal Unit ............................................................................................. 13
Modbus RTU Message Framing Structure .............................................................. 13
Parameter Handling ....................................................................................... 16
Parameter Handling ................................................................................................ 16
Translation from Modbus RTU Protocol to FC Protocol ........................................... 16
Register Maps VLT 2800 ........................................................................................ 17
Register Maps VLT 6000 ........................................................................................ 18
Process Data ......................................................................................................... 19
Status Coil Maps .................................................................................................... 19
Control Word Bit Descriptions for VLT 2800 ............................................................ 19
Status Word Bit Description for VLT 2800 ............................................................... 21
Control Word Bit Descriptions VLT 6000 ................................................................. 23
Status Word Bit Descriptions VLT 6000 .................................................................. 24
Serial communication reference .............................................................................. 25
Present output frequency ....................................................................................... 26
Supported Modbus RTU Function Codes ......................................... 27
Exception Codes ............................................................................................. 31
Exception Code Tables .......................................................................................... 31
Appendix A - Examples ............................................................................... 32
MG.10.S1.22 - VLT is a registered Danfoss trademark
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