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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.

Dec 3, 2013

Duplicate addresses for AS-Interface happen; no big deal.  Just readdress the incorrectly addressed AS-Interface module and things are fine again.  But what if EVERY module on a network appears to be a duplicate address?  Listen to what really happened.  The second issue we were confronted with was a, AS-Interface network that just did not communicate reliably. Network too long?  Close, but not exactly.

  • - When two gateways share a network, the master on one gateway must be disabled.  But, don't forget that mapping the gateway in the PLC can reactivate the previously disabled master!  Flip a bit in the output image and the issue goes away.
  • - Besides observing the 100 m segment rule, it is really important to use cable that satisfies the AS-Interface specification.  Wiring a network using 22-gauge cable is just not going to work.