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Databases — the perfect complement to PLCs

Written by Steve Hechtman January 07, 2010
Okay, you’ve tackled PLCs, and now you can program them with one hand behind your back. So what’s next? What’s the next logical challenge? Think SQL and relational databases. Why?…
Why am I writing about the PLC again? 'Tis the 40th birthday of the device – a big event in anyone’s life. Writing this column about the PLC is difficult,…
While this book is primarily written for academia and for course study, it can very well suit some control engineers and some process guys to allow them to learn more…

AUTOMATION SOFTWARE - OPC DataLogger

Written by Jeremy Pollard February 04, 2008
I have, in many situations, said, "Darn, I wish I could log this data group to Excel for the next five minutes." I didn’t want to have to jump through…

AUTOMATION SOFTWARE - OPC extender: Visual Basic development

Written by Jeremy Pollard October 16, 2007
In my last column, I reviewed the OPC DataHub from Software Toolbox. An accompanying product, the OPC Extender, is a logical transition for your Visual Basic (VB) development needs. Users…

AUTOMATION SOFTWARE - PLC Code Generator

Written by Jeremy Pollard May 14, 2007
I first saw an ad for the PLC Code Generator in Manufacturing AUTOMATION, and I couldn't wait to get my hands on it. Based in London, Ont., Emjen Engineering has…

AUTOMATION SOFTWARE - Why go back to the drawing board?

Written by Jeremy Pollard May 17, 2005
While we constantly update our PLC I/O drawings during project and maintenance mode, we rarely update the drawings themselves. Why? I think the reason is the time it takes to…

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