NEMA rating is one of those standards that is at times misunderstood or even ignored. However, it is an important specification that must be considered when buying a NEMA rated product to ensure the safety of personnel and equipment. For this post, let’s use enclosures as an example of a NEMA rated product. NEMA rated…
In a Control Design September 2018 Automation Basics column titled “Terminate the Rat’s Nest”, author Dave Perkon gets right to the point when he writes, “For those who think it’s okay to open a control enclosure and see a monochromatic rat’s nest of wires without any wire labels, you should be aware, that’s worst-case practice.”…
When designing a PLC controlled system, one aspect that should not be overlooked is how the PLC scan will affect your operation. The PLC scan consists of a sequence of operations the CPU will follow repeatedly. The amount of time the CPU needs to complete this sequence is known as scan time and it can…
ApplicationApplication StoriesAutomationDirect SpotlightFacilitiesIndustryIssue 41 - 2019Notebook IssuePLCProcess ControlProductProgrammable ControlSystem Integrators
Open System Provides Precise Temperature Control
System integrator Affinity Energy worked with the University of North Carolina at Chapel Hill to design and install a new temperature control system for their research chambers. By Allan Evora, President of Affinity Energy The University of North Carolina (UNC) at Chapel Hill was spending too much time and money supporting an existing control system….
When selecting a controller, current and future needs should be considered to ensure flexibility. Winn Paulk is the Automation Controls Group Product Manager at AutomationDirect, and he wrote an article appearing in the September-October 2018 issue of IMPO titled Choosing the Right Controller for Your Industrial Automation Application. Here’s a summary, please click on the…
Andrew Waugh, Product Manager, Sensor and Safety Products at AutomationDirect.com, wrote an article for the September 2018 issue of Design World titled Wide and Narrow Views of Position Sensors, here’s a summary. Limit switches, photoelectric switches and laser sensors all provide position sensing, but depending on the application some shine and reflect better. Waugh points…
Even with best efforts to supply clean and dry plant air, point-of-use air preparation is still needed for safe and reliable pneumatic machine operation. Pat Phillips, Product Manager, Fluid Power & Mechanical Products at AutomationDirect, wrote an article for the August 2018 issue of Industrial Equipment News titled Safely Provide Clean Air to Machines with…
Choosing the most effective controller requires careful evaluation of multiple requirements. Jeff Payne, Automation Controls Group Product Manager at AutomationDirect, wrote an article appearing in the August 2018 issue of Applied Automation titled How to Choose an Industrial Automation Controller. There are many important items to consider when choosing a controller for machine and process…
Jim Krebs, technical marketing engineer at AutomationDirect, wrote an article in Processing magazine’s July 2018 issue titled Specifying Thermal Management Systems for Control Enclosures Most automation and electrical devices must be housed in a control enclosure when used in industrial environments. This includes controllers, drives, power supplies, disconnects, fuses, terminals, relays, contactors and more. Krebs…
Jerry Reaves, PLC silo product manager at AutomationDirect, wrote an article for the July 2018 issue of Control Engineering titled Comparing ladder logic and object oriented programming In the article, he discussed how many young automation professionals are comfortable with object oriented programming (OOP), but Reaves says ladder logic remains the standard for industrial automation applications:…