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DVP 14SS2 “Modbus RTU” Siemens Sinamics V20 Tutorial

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Delta PLC DVP14SS2 is a low cost, compact size PLC from Delta. However, it is integrated with extremely impressive technology such as High Speed ​​Counter, PTO, RS485.

Today will guide you to use Delta DVP14SS2 to control Siemens Sinamics V20 inverter through Modbus RTU (both are built-in RS485 port)

DELTA DVP14SS2 & Sinamics V20 “Wiring Diagram”

Siemens Sinamics V20 Modbus Configuration

We need to configure the communication parameters as the table below to be able to control Sinamics V20 by Modbus-RTU RS485

Register Control Address

+ VFD Control Address = 99 (dec)

  • Set Word 99 = 1151 >>> Forward Run
    = 3199 >>> Reverse Run
  • Set Word 99 = 1150 >>> Stop
  • Set Word 99 = 1278 >>> VFD Reset

+ Frequency Setting Address = 100 (dec)

Data Monitoring Address

We will read 3 Output values ​​including: Frequency, Speed, Current with the starting address as: 23 (dec)

Delta DVP 14SS2 Modbus Parameters Setting

We need to configure the same parameters as those configured in Siemens Sinamics V20

PLC Programming

+ Modbus RTU parameters setting

+ Frequency Setting Command

+ VFD Control Command

+ Read Data Response

Project Video Tutorial


Related Software and Documents

>>> Download WPL Soft for PLC Delta Programming

>>> Siemens Sinamics V20 Manual PDF Download (Password Extract:

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