Tag Archives: HMI

IDEC PLCs and HMIs

While the info is fresh in my mind, I thought I’d make a few notes from the 3-day training class on IDEC PLCs and HMIs. In General: Excellent hardware quality compact size low cost software is inexpensive (free with purchase … Continue reading

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Build Your Own Non-Linear Response

It is common to control the speed of a pump based on a sensor reading.  But what if you want the pump speed to change at a different rate at different parts of the sensor range?  If the response isn’t … Continue reading

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Calculating the Volume of Irregular-Shaped Tanks

This is a quick demo and code listing I used to calculate the volume of a tank that is a combination of box, cylinder, and sphere shapes.  The controller is a Red Lion G3 Graphite.

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First Impressions of a RedLion Graphite HMI

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HMI Screen – WIP Tanks

Here is a HMI screen I created for a recent smallish project.  We added controls to allow storage of product in these new WIP (work in progress) tanks to give more flexibility to the production process.  This is an older … Continue reading

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RedLion G315 Load via USB Locks Up Unit

The new G315 units (and only the G315s) don’t have USB 2.0 support.  They use USB 1.1.  When you try to load the configuration via USB, it will fail, and it will lockup. The power-on while holding buttons 1 and … Continue reading

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Working from Home

I brought all the stuff I’ve been working on in the office home so I could spend the weekend here instead of all alone in the office.  This is all equipment from automationdirect.com (the walmart of industrial automation).  I’ve been … Continue reading

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