Columnbus
All about control: Process control and Control in the Field
Written by Ian Verhappen, P.Eng. January 24, 2012
Original pneumatic process control loops were implemented with Control in the Field. In those days, the analog input (transmitter) and output (valve) needed to be connected by the air line…
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Columnbus
When you talk to safety system and control engineers, many say that they do not have faith in the communications reliability of buses and prefer to use conventional analog signals…
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Columnbus
Implementing asset management: Standards and justification
Written by Ian Verhappen, P.Eng. October 19, 2011
The majority of new electronic field devices being installed today all have some form of diagnostics capability, and most also have some way of communicating their overall general health to…
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Columnbus
Networking technology has been around for at least as long as computers; however, it was not until the 1970s that the demand for permanent connection between distributed nodes became more…
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Columnbus
In the past, I have talked about how smart instruments are able to continuously monitor their own health and report diagnostic information about their status. In addition, bus-based and smart…
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Columnbus
We are all familiar with the phrase "garbage in, garbage out," but how many of us realize that this statement is also true for our control systems?
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Columnbus
We are all aware that the North American energy grid is under stress, and utilities urgently need to manage peak versus off-peak energy demand to reduce the need to build…
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Columnbus
Every working professional - myself included - is expected to continually develop new work skills. In fact, depending on your role and licensure, ongoing professional development is often a mandatory…
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Columnbus
The International Society of Automation (ISA) recently completed its Automation Week in Houston, Texas. This was a huge change from past years because this year the focus was on the…
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Columnbus
Continuing along the theme of last month's column, I'd like to carry on with the discussion about the importance of diagnostic information, and the integration of this information into asset…
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Columnbus
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