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Creating a Modular LabVIEW Application (Part 3 of 3): Creating Universal Control

This is the final entry in a 3 part series for creating modular, scalable LabVIEW programs. Feel free to visit the first two entries, “Creating a Modular LabVIEW Application (Part 1 of 3): Creating an Expandable Data Format” and “Cr...


Introducing LabVIEW Object Oriented Programming to your Toolbox

The concept of LabVIEW Object Oriented Programming (LVOOP) has been around for a number of years now, but has consistently been one of those areas that seemed to have to high of a learning curve to justify learning “just because”. Luckily...


PLC Analog IO Troubleshooting Tips

When commissioning or troubleshooting PLC inputs and outputs (IO), the analog signals are often the most difficult. First, analog IO almost always has to be scaled to convert the raw signal to useful process values. Also, there are many wiring and ex...


Microsoft SQL Server Integration Services

Recently I worked on a project where I needed to import test data from a chemical process contained in text files into a MS SQL Server database. I was about to start a C# .NET project to do this task, but I thought there has to be a quicker and easie...


Asynchronous Message Box in WPF

The message box, in Windows Forms and WPF, is a useful, quick-and-dirty way to send an alert, display an error, and get simple input from the user. The message box is, however, modal. Recently, I needed to use a message box in WPF but did not want...


Creating a Modular LabVIEW Application (Part 2 of 3): Eliminating VI Dependencies

This is the second part of a 3 part series on creating modular, scalable LabVIEW applications. If you haven’t, feel free to read the first section, “Creating a Modular LabVIEW Application (Part 1 of 3): Creating an Expandable Data Format&...


DMC Leads SharePoint Dashboard Workshop at the Alliance for Illinois Manufacturing

DMC led a SharePoint Dashboard Workshop at the Alliance for Illinois Manufacturing executive lunch briefing on March 4, 2010. The event's topic, Use Technology You Already Own to Operate Efficiently and Competitively, drew a full-house of thirty ...


PLC Troubleshooting

We are frequently asked to work on PLC systems for clients that we did not develop. The job could be troubleshooting an issue or adding a new feature to the system. Working with unfamiliar code has its own unique challenges, although we take pride in...


Modular LabVIEW architecture

Many of the LabVIEW applications that DMC develops are based on our internally developed state machine architecture. This architecture has a proven record of allowing us to create flexible, robust, and easy to maintain applications. One of our cli...


"Indirect Addressing" in Step 7 Basic v10.5 SP2

For those of us who appreciate and harness the power of indirect addressing in Siemens S7 300 and 400 level PLCs, we were sad to hear that this functionality was not supported in the same way for the new Step 7 Basic software for S7-1200 PLCs. As ...


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