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Syndication

Using AS-Interface is all about building segments and networks. In this episode, Helge and Tim cover the following points about building long AS-Interface networks, and what to know about AS-Interface segments:

  • --Segments can be 100 m long
  • --Multiple segments can be combined to build longer networks
  • --Segments are combined using repeaters; 500 m is easily possible
  • --Each segment must have its own power supply
  • --Ring segments are possible and can be 200 m long
Direct download: techtalk119.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

While AS-Interface has been designed to operate without termination, there are cases where a terminator for AS-Interface can be quite useful.  Recall that AS-Interface network segments must not be longer than 100 m.  Violating this limit causes reflections at the end of the network resulting in communication issues, causing the network to run increasingly less stable.

  • --Using an AS-Interface terminator at the end of the network can help reduce reflections and thus in many cases allows network segments to be up to 200 m long
  • --Only one terminator must be used per segment
  • --Always put the terminator at the “opposite side” of the AS-Interface power supply
  • --Do not use a terminator if the segment is 100 m or shorter
Direct download: techtalk118.mp3
Category:AS-Interface Technology -- posted at: 4:19 PM

The AS-Interface Analyzer is a powerful tool to evaluate the communication quality of the AS-Interface network.  The Online Statistics screen is a very quick and simple way to determine how well the network runs.  This view is also very useful when trying to find safety-related issues.

Read the AS-Interface Maintenance and Troubleshooting Guide (PDF)

Direct download: techtalk117.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

Repeaters allow AS-Interface segments to be combined to create longer networks.  When using AS-Interface repeaters there are few simple rules that need to be observed:

  • --Each new segment must have its own AS-Interface power supply
  • --Starting at the gateway, no slave can be more than two repeaters from the gateway
  • --Consequently, networks that are much longer as 300 m are possible

Read the AS-Interface Maintenance and Troubleshooting Guide (PDF)

Direct download: techtalk116.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

LEDs are powerful diagnostic indicators on just about all AS-Interface devices. The simple rule is that "green" is good and “red" requires someone’s attention.  Outputs are an interesting exception where "amber" indicates that the output is ON.  The AS-Interface Maintenance and Service Guide(PDF) also lists the LED states on the "consortium" Safety Monitor.

Direct download: techtalk115.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

Exchanging an AS-Interface Safety Monitor is a simple process, and in this episode Tim explains how this is done using the "consortium" Safety Monitor with the dedicated transfer cable.  Tim also covers the procedure for the newer AS-Interface solutions (KE4 and K30) where the configuration is stored on a memory card.

Watch the YouTube video: "How to Replace an AS-Interface Safety Monitor"

Direct download: techtalk114.mp3
Category:AS-Interface Technology -- posted at: 7:33 PM

The AS-Interface Maintenance and Troubleshooting Guide helps users who need to replace a safe input module.  Tim and Helge cover the topic considering the safety monitor hardware. 

Note: Also check out our video going through this step by step: How to Replace a Failed AS-Interface Safety at Work Module.

Direct download: techtalk113.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

The AS-Interface Maintenance and Troubleshooting Guide discusses setting up a network using the convenient 'Store+Run' and 'Store+PRJ Mode' function. 

In this episode, Tim and Helge talk about setting up a network using these functions and also discuss a number of other, very important features including error counters and fault detectors.

Download the AS-Interface Maintenance and Troubleshooting Guide (PDF)

Direct download: techtalk112.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

In this week's discussion, Tim Cicerchi and Helge Hornis continue their conversation about The AS-Interface Maintenance and Troubleshooting Guide. The guide explains what users can do with the AS-Interface addressing handheld unit. Hints from the guide include:

  • --Assign an address to any AS-Interface module
  • --Read inputs and set outputs
  • --Read the profile (IO and ID codes)

Download The AS-Interface Maintenance and Troubleshooting Guide

 

Direct download: techtalk111.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM

In this week's discussion, Tim Cicerchi and Helge Hornis call out specific aspects of The AS-Interface Maintenance and Troubleshooting Guide. The guide is a very useful booklet that helps new and experienced AS-Interface users during planning, installation, and troubleshooting. Tips include:

  • --Use certified modules
  • --Always follow the most basic installation rules .. there are not that many
  • --Do not use shielded or twisted cable

Download The AS-Interface Maintenance and Troubleshooting Guide

Direct download: techtalk110.mp3
Category:AS-Interface Technology -- posted at: 4:00 PM