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Speed control for all ventilation applications

Convenient automation solution for air and drive technology

You want to control one or more fans with little wiring effort? This application example enables you to control up to four ebm-papst fans via MODBUS RTU. You will always have an overview of the serially controlled fans and can parameterize and control them individually or together. If necessary, you can extend the number of fans up to 32. 

Efficient, simple and time-saving

You benefit when using this application example.

Controlling fans with SIMATIC

The energy-saving ebm-papst fans can be easily integrated into automation solutions with SIMATIC with this application example. 

Simple operation via Panel

A user-friendly operating concept enables very simple operation with clearly structured HMI screens. Important fan data, such as power consumption, can be visualized in the HMI device, for example. 

Fast commissioning

After a brief commissioning time, you can conveniently control your ebm-papst fans.

Possible uses

Thanks to its flexible expandability for the various automation tasks, you can use this application example in the ventilation and drive technology. 

Some examples of possible uses:

  • Air-conditioning systems
  • Conveyor belts
  • Heat exchangers of cold chambers / cold storage 

How does it work?

The S7-1200 controller cyclically queries the most important status information of all fans. Communication with the fans is sequential (one after the other). If necessary, specific parameters of a fan can be read. During parameter assignment or controlling, one fan or a group of fans can be addressed. Almost all parameters of the fans can automatically be accessed in the control program (without HMI).

Required components

You need the following components to implement the application example. 

Article Number Article number Note
SIMATIC S7-1200 Power supply PM1207 1


SIMATIC S7-1200 CPU 1214C DC/DC/RLY 1 6ES7214-1HG40-0XB0
SIMATIC S7-1200 CB 1241, RS485 1 6ES7241-1CH30-1XB0
Alternative: CM 1241, RS422/485 (6ES7241- 1CH32-0XB0)
SIMATIC HMI KTP900 Basic 1 6AV2123-2JB03-0AX0
ebm-papst Vario Drive C fans 2   Manufacturer: ebmpapst
SIMATIC STEP 7 Basic V15.1 1 6ES7822-0AE05-0YA5 Alternative: SIMATIC STEP 7 Professional V15.1
SIMATIC WinCC Basic V15.1 1 6AV2100-0AA05-0AH5  

InesBärthlein has not written a bio yet…

9 Dec 2019, 14:43