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How to Perform a Step Test

Tuning PID controllers is a multi-step process.  While it is important to understand each step in the process, performing the bump test and collecting dynamic data is the most crucial step that generally dictates the outcome.  This post delves [...]

2016-10-19T14:30:17+00:00

When Profits Are Hidden in Plain Sight

While it doesn’t have the ring of ‘Industry 4.0’ or stir the imagination like the ‘Industrial Internet of Things’, control loop performance monitoring technology enables manufacturers to realize their plant’s full profit potential.  Don’t take my word for it - [...]

2016-10-19T14:30:17+00:00

Is the Harris Index Right for Your Loop Assessment Needs?

Predicting the weather is difficult – just ask a meteorologist. Even with the help of advanced analytics few seem to get it right with consistency – just ask any parent who has dealt with an unplanned snow day. In addition to more advanced tools meteorologists rely on basic measures such as Temperature, Wind Speed, and Atmospheric Pressure. Their continued reliance on these simpler metrics provides food for thought.

2016-10-19T14:30:17+00:00

What is the Industrial Internet of Things (IIoT)?

If you’ve investigated manufacturing trends recently, then the Industrial Internet of Things (IIoT) has probably caught your attention once or twice. IIoT capitalizes on a range of communication and automation technologies that have been applied in industrial applications for years. With its primary focus on the supply chain and enhancing efficiency, however, IIoT often leaves production staff wondering how plant floor operations will be impacted.

2016-10-19T14:30:17+00:00

Data Collection Speed is Key to the Accurate Interpretation of Process Dynamics

If you’re old enough to remember silent movies, then you know what it’s like to see the characters seemingly jiggle around the screen. Black spots would randomly appear as the story was told with the help of subtitles. Spots and subtitles aside, these movies appeared jittery due to their slow speed. The slow frame rate - a precursor of data collection speed - resulted in visual gaps.

2016-10-19T14:30:17+00:00

Using Percent Time in Normal to Uncover Tuning Issues

Even Simple Metrics Such as Percent Time in Normal Reveal Issues that Negatively Affect Performance and Signal the Need for Controller Tuning It’s easy to get tripped up if a shoelace is untied. Just ask any child. While that’s a lesson most learn early in their lives each of us can occasionally slip up and find ourselves at risk.

2016-10-19T14:30:17+00:00

Using Mode Changes to Uncover Tuning Issues

Mode Changes Provide Insight Into a Process' Overall Performance and They're Often Linked to Poor Controller Tuning. Operator interventions and Mode Changes are often viewed negatively. When a PID loop is switched out of automatic there can be a sense [...]

2016-10-19T14:30:18+00:00