IO-Link Scalability Animation Video


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How can I use IO-Link in my application?  How is IO-Link scalable?  If these are questions you still have, watch this animation describing the scalability of IO-Link.  To learn more about Balluff’s IO-Link offering, click here

Defining IP Ratings and NEMA Ratings

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As I was preparing to write my blog entry, I was browsing my e-mail and came across an article in the October Issue of TIA Newsletter (Totally Integrated Automation) from Automation World, concerning IP Ratings.  I found the article , very informative as it broke down the different degrees of IP ratings, as well as some similarity and differences between IP ratings and NEMA ratings.  I only wish there was some information involving IP69K. 

This article, IP Ratings – What are they and what do they mean,  is a great starting point to learn about IP Ratings, I suggest you stop by and read it. 

For more information about IP67, check out The Secret of IP67 Protection.

3 Steps to Evolve to Ethernet Networked I/O

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Let’s face it; an installed base, a trained maintenance crew, and an established set of procedures all make it really difficult to try to implement any new technologies in a running manufacturing facility.  The idea of an industrial network providing detailed data about your processes and improving productivity sounds interesting and valuable,  but where do you begin?  Retrofitting everything with the newest technology isn’t an option in today’s economy, the capital investment is just too great.  But there is hope!  And with small steps, time and training, any plant can move forward into the ethernet realm and beyond.

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I Can Do Quick Recipe Changes on the Fly, Can You?

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In my recent travels of the east coast from Boston to Tampa, customers have been looking for quality solutions to be able to run:

multiple products,

and multiple sizes,

and multiple form-factors,

all on one production line.

Two things about this seem to be in every application:

  1. Change-over needs to be simple for the operators.
  2. Management needs to see the cost/time savings, be it planned or unplanned downtime.

But how can I do multiple recipes or multiple jobs on one machine?  I have to reprogram/reposition sensors, move guide rails, swap out components, etc…

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IP67 Network I/O Islands: Why? Are there other options?

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Typical IP67 network topologies involve stand-alone I/O modules, providing 8 to 16 points of I/O per module.  In some applications multiple stand-alone modules could be mounted within inches of each other.  Thus was introduced the IP67 Network I/O Island, a modular IP67 I/O solution that allowed 8 to 60 plus I/O points to be connected to only one network node.  This solution provided initial costs savings by reducing the number of network nodes used in an application, but brought along some new problems.  One problem involved exceeding long sensor /actuator cordsets, with a centralized I/O solution remote sensors needed cordsets of 5, 10, or even 15 plus meters in length.  The second issue was cordset management; imagine tracing a suspect cordset to the network I/O island with 60 plus connectors hanging off of the front of the unit.

IP67 Network I/O Island
IP67 Network I/O Island

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The Basics of Profibus and ProfiNet, Revealed!


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Regularly I attended free one day seminars on Profibus & Profinet put on by the PI Organization.   They have two different classes that they offer in cities all over the US and Canada.  There are usually about 50-100 attendees and it is a great opportunity to network with local engineers from and around the area in a wide variety of industries.

In the seminars they cover these topics in general:

  • The history and breadth of the PI Organization
  • Different ways to build I/O architectures and how to integrate them
  • Why networks are important and how to select a network

And they cover in detail (using vendor products and Siemens PLCs):

  • How to design a network
  • Configuration of a network using the PLC
  • Installation considerations, cabling & hardware
  • Commissioning a system
  • Long term maintenance and troubleshooting
  • Plantwide Energy Conservation

During breaks, multiple vendors of Profibus & ProfiNet related products were available to discuss applications and projects with the attendees and provide valuable resources for industrial network design.

We (Balluff) are a sponsoring member of the seminars and I was attending to discuss IO-Link, Profinet and Profibus industrial network applications with potential and current customers.

If you are unfamiliar with Profibus, ProfiNet or IO-Link I recommend you attend one of these seminars to learn about how it can help your machine design.

I updated the text in this entry on 3/8/2011.

One M12 Port = Endless Possibilities

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Paradigm shifts in automation are always occurring. The need for cost savings and higher diagnostics caused the shift from IP20 I/O to IP67 I/O.  Now, we are in the midst of a shift to reduce or eliminate enclosures in industrial applications by removing control and power from the cabinet.  With the reduction of IP20 I/O and enclosures, adding more I/O (discrete and analog) or specialty devices (RF identification, measurement devices, etc…) is now more difficult.  In the past it was relatively easy, but expensive, to add another “slice” of I/O to an existing IP20 solution.

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That 1 Channel of Analog!

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In most industrial applications 80-90% of the I/O going back to the PLC is discrete points.  Multiple times I have been asked, “How can I easily, quickly, and cost effectively get one channel of analog back to my PLC”.  The solutions in the past have either involved an IP20 slice I/O solution in a J-box, which is expensive and labor intensive, or an IP67 network module, which reduces labor costs but still carries a high cost.  A common drawback to these solutions is that you have to pay for 2, 4, or even 8 channels when only one is required.

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5 Things You Need to Know about IO-Link

Industrial networks are nothing new; ASi, CANbus, DeviceNet, Profibus (to name a few) have all been around for years.  Designers of production equipment use networks for a variety of reasons: simplified machine mount I/O, motor starters, valve bank control, etc.  Each network has a limited number of devices that can be connected and each device is designated a node address or IP address.  IO-Link takes a standard network and expands it beyond its current capacity through flexibility and expansion.

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