This article by Austin Scott, the author of the book, Instant PLC Programming with RSLogix 5000, explains how to create some PLC programs for our newly-created project. We will learn how to create Ladder Logic programs in RSLogix 5000 by drafting a basic Ladder Logic alarm timer routine. We are going to add an alarm that will be triggered if the valve position set point and current analog input position of the valve differ for more than five seconds.Read Building Ladder Diagram programs (Simple) in full
This article by Pavel Ryzhov, the author of Haskell Financial Data Modeling and Predictive Analytics, gives a brief idea about the Haskell platform. The first version of Haskell was standardized in 1990. After a series of intermediate standards, the minimal, stable, and portable version of the language was published as "The Haskell 98 Report" in February 1999. This successful standard was revised in 2003 and published as "Haskell 98 Language and Libraries: The Revised Report". This is the most supported version of the language and it is implemented in many compilers and interpreters of Haskell. The latest specification, Haskell 2010, adds Foreign Function Interface (FFI) for binding to other programming languages, fixes some syntax issues, and introduces several pluggable language extensions. Throughout this article, we will use Haskell 2010.Read Getting started with Haskell in full
In this article by Brian Peiris, the author of the book Instant jQuery Flot Visual Data Analysis, we will understand that the axes are the most configurable parts of the chart. Flot gives you the ability to change the position, type, and colors of the axes. It also gives you full control of the ticks and labels on the axes, letting you adjust the number of ticks and alter the formatting. Axes also determine how the data is displayed; you can change the min and max settings to display only a part of the data on the chart and you can also transform the data in various ways.
The full documentation is available at https://github.com/flot/flot/blob/master/API.md#customizing-the-axes. We will take a look at some examples of the configuration options by creating a chart that has a logarithmic axis and another chart that includes multiple axes.Read Working with axes (Should know) in full
This article by Kyle Diedrick, author of Instant Fancybox, shows how Fancybox also provides some great image gallery and slideshow functionality. Let's take a look at what is involved in creating a Fancybox gallery.Read Creating an image gallery in full
In this article written by Deep Shah, the author of the book Instant Mock Testing with PowerMock shows how effortlessly we can mock static methods with PowerMock. Most of the mocking frameworks have trouble mocking static methods. But for Power Mock, it’s just another day at work.
The real power of PowerMock is the ability to mock things that other frameworks can't. One such thing is mocking static methods.Read Mocking static methods (Simple) in full