Tag Archives: PLC

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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Time Average in Ladder Logic (ControlLogix AOI)

I’ve needed a time-average function several times, so I figure other people have also.  Here is a handy AOI which makes it easy to use in a ControlLogix ladder program.  (AB has the Moving Average MAVE instruction in function block and … Continue reading

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Use Logix GSV WallClockTime for Pulse Bit

If you are using the AB ControlLogix platform and want a bit to cycle on and off at a consistent rate, you can address one of the bits of the register that represents the clock microseconds.  (GSV WallClockTime)  The register … 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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