Hanover 2015: IO-Link News

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IO-Link had some big news at the fair, but first let’s look at some of the IO-Link products.  First, the IO-Link wall at the PI booth with more products than ever before.

IO-Link Wall in PI Booth

IO-Link Wall in PI Booth

One of those products was an AS-interface master for IO-Link.  Ok, there are masters for every other bus you can imagine, but, really, AS-i?  In asking around the explanation was very simple – AS-i is a bus and IO-Link is point-to-point.  So if you have AS-i and need IO-Link, you can bring back IO-Link data over AS-i.

Other discussions centered on IO-Link benefits.  I asked several people: “Which is more important, IO-Link’s ability to parameterize (configure) or to read back diagnostic information?”  I’m a huge believer in getting diagnostic information to prevent and minimize downtime.  But most answered to configure.  The ability to replace an IO-Link device and have it get its parameters without manual intervention is a real benefit for maintenance folks.  At least one person told me it was neither uploading nor downloading that really benefits some users; it was sending analog data digitized.  In short, there are many reasons to use IO-Link.  Follow our “IO-Link: Did You Know” series in PROFINEWS for more.

In fitting with the Industrie 4.0 and IIoT theme, someone pointed out that IO-Link is the connection to devices after the last meter of cable.  And PROFINET has an IO-Link proxy to bring IO-Link communication to Ethernet.

As usual, I networked with PI North America member Comtrol.  They are the North American competence center for IO-Link.  The biggest promoter of IO-Link in North America seems to be Balluff.  A visit to their booth confirmed that.  When I asked who was in the booth from the US, Jessica Ross was right there.  (She’s our contact for Balluff exhibiting at our PROFINET one-day training classes.)

The big news? Through last year, 2,190,000 nodes of IO-Link were installed according to an independent auditor.

Next post: the lighter side.

–Carl Henning

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