Dear engineers, 

Hope you doing well.

I have done a project using s7-1500, Danfoss Fc302 and comfort panel. The VFD was controlled by PLC through Profidrive and everything worked perfect.

I remember, With LS and Delta HMI , I could control the VFD in modbus communication without PLC. Could we use comfort panel or Wincc professional/advance to control VFD through profidrive using scripts? 

I try to do that but when you want to move the control word to for example QW0, I don't know how I should  do that!

Hello Mehdi;

Have a look at this document, it is based on TIA Portal v13, but you should be able to follow its guidance on a more recent version of the software. The ghardware used fr the example is a Comfort panel, but it is stated in the documentation that you can replace that with a WinCC Advanced system.

• Communication between SIMATIC HMI Panels and SINAMICS frequency inverter G120 for operating and for displaying of alarm- and error messages (direct connection, without PLC)
• https://support.industry.siemens.com/cs/ca/en/view/109481157

Hope this helps,

Daniel Chartier

I appreciate for your response 

But there is still an issue, in the PDF which you shared we can use S7 CONNECTION  Between HMI and VFD, because the both equipment made by siemens. And also, for addressing the DB, we use specific number which equals to sinamics G120 parameters. But what should we do in case that the VFD is not siemens?? 

How should be the connection and also what is the address for read or write parameters? 

Hello Mehdi;

The information you have found reading on this S7 solution provides you with a very important conclusion: any solution to yhis application will depend in a great measure on yhe equipment yiu plan to use.

A Siemrns drive abd a Siemens HMI will exchange using S7 Connections.

Different manufacturers might attempt the same type of control with their equipment, based on their own native communication protocols, Ethernet/IP, Modbus (RTU or TCP/IP)... I have a feeling that mixing  the HMI  and the drive manufacturer might not be simple.

If you provide more details on the modules you will use in this project we might be able to give you a more informed opinion.

Hope this helps, 

Daniel Chartier 

In my application I should make a connection between comfort panel and Danfoss Vfd Fc series(FC302) , in my previous project I connected it with s7 1500 through Profidrive and could read and write parameters. but in this project I just need to start stop and give speed reference to VFD.

We can use script in the HMI but the adress of the QW or IW to write and read parameters are not available