Archive for category Ethernet

Industrial Wireless 101: Free access to webinar recordings

In the past month, I’ve focused several articles on industrial wireless technology. If you’re interested in learning more, here are several webinar recordings you can watch on your own time that will give you more insight into how wireless works, and how companies are using it to extend that measurement base and get process information where they need it to go, even on a limited budget.

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Two different approaches to industrial networking

This morning, I came across two articles I thought were worth sharing. They’re both about industrial networks, but from two entirely different angles.

The first article is written by a network engineer at a manufacturing plant. The gist of it is something we at Lesman talk about often with our customers: Buy what you need. In this case, he’s talking about Ethernet switches for light manufacturing and assembly operations, where a field-hardened industrial ethernet switch may be overkill (and out of your budget).

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Industrial Wireless 101: Why do we need three frequency bands?

Regardless of what information you need to send, or where you need to send it, if your data is going “over the air”, you’ll need to choose a frequency in one of three ranges that do not compete with the FCC licensed bands for radio transmissions.

These three ISM (industrial, scientific, medical) bands are 900 MHz, 2.4 GHz, and 5 GHz. They’ve often been described as the industrial equivalent to Citizens’ Band radios, specified so they don’t interfere with broadcast radio signals.

History with technology would lead you to believe that the more Hertz you have, the better your radios will perform. But what you need to understand is that there’s a tradeoff. Each band has its strengths and weaknesses, and there’s a best use for each.

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Which Industrial Wireless is Best for Me?

The answer to the Which Wireless is Best for Me? webinar question is, “it depends”.

With a decade of license-free industrial wireless experience under our belts, I’m confident that there’s a best wireless solution for everyone.  But which technology and network depends on what you’re trying to accomplish.  Some people just need a couple I/O points, others a plant-wide network to handle I/O and WiFi.

If you missed the webinar and want to see and hear the considerations for industrial wireless, go here: http://www.lesman.com/train/webinars/Webinar_Which-Wireless.htm

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