According to a recent study carried out by the "Wireless in Automation" working group of the ZVEI (German Electrical and Electronic Manufacturers' Association), the reliable parallel operation of wireless radio systems in production plants is possible. The brochure, "Coexistence of Wireless Systems in Automation Technology," explores the factors that must be taken into account when investigating wireless coexistence solutions.
Wireless systems such as WLAN or Bluetooth have been used in the home and in the office for many years. They are also being used in the automation systems of plants and machines. However, the requirements on availability and interference immunity associated with such applications are often considerably higher.
A number of electrical automation manufacturers jointly investigated wireless coexistence solutions in industrial applications under the umbrella of the ZVEI. For this purpose, ifak — Institut für Automation und Kommunikation e.V. Magdeburg — was asked to carry out extensive measurements.
"Coexistence of Wireless Systems in Automation Technology," summarizes the study's most important findings, including the important characteristics for differentiating wireless systems, their behavior during parallel operation and measures for coexistence management. The brochure can be downloaded at http://www.zvei.org/automation/publication.