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Pepperl+Fuchs Podcasts


Pepperl+Fuchs’ TechTalk helps listeners gain an insight into modern automation technologies by focusing on AS-Interface (Actuator Sensor Interface) and its associated safety technology, Safety at Work. TechTalk covers topics that range from hardware selection to installation and maintenance. Control engineers familiar with AS-Interface will get the latest news on specification enhancements, hear about new products, and familiarize themselves with established and cutting-edge troubleshooting methods, tips, and tricks.  Users who are interested in applying these technologies will learn what it takes to set up an AS-Interface system, how Safety at Work improves safety systems, and why those technologies have the potential to save time and money during all phases of a project.

Jun 15, 2014

AS-Interface Digital I/O module -- In this week's episode, Tim explains the data concerning the outputs, profiles, data bit layout, and parameter bits for AS-Interface module VBA-4E4A-G11-ZAJ/EA2L-F.

  • --Typical AS-Interface modules with electronic outputs are sourcing 24 VDC plus.
  • --Depending on the "power source," digital outputs are powered from AUX or from AS-Interface.
  • --It is important to look at the total output current and watch for any restrictions.
  • --Profiles specify the "function" of a module; they are important in case a failed module must be replaced.
  • --Data bit layout is important since a PLC programmer needs to know where in the PLC map an input shows up and which PLC bits control an output.
  • --Parameter bits give the programmer the ability to modify the behavior of a module.