Altivar VFDs

How to control an Altivar ATV320 VFD over Modbus with a Modicon M340 PLC

In this article I would like to show you how to control an ATV320 variable frequency drive using Modbus serial port on M340 PLC. Before we begin, following is the list of items you need PC with EcoStruxure Control Expert Small Software installed Schneider Electric Modicon (BMXP342020) PLC Schneider Electric...