PLCs, PACs

Figure 2: Ladder logic programming example; LL is the most commonly used PLC programing, most closely resembling circuit diagrams used for relays. Courtesy: Frank Lamb, Automation Primer
PLCs, PACs August 1, 2019

Control Engineering hot topics, July 2019

Control Engineering's most clicked articles in July 2019 included stories about PLC programming languages, connecting a PLC to the internet, digitalization advantages, choosing the right enclosure, and more. Miss something? You can catch up here.

By Chris Vavra
Figure 1: Industrial controllers such as this traditional PLC/PAC, are typically installed in control panels local to the equipment or processes they monitor and automate. Courtesy: Opto 22
PLCs, PACs July 30, 2019

Evaluate controller options for industrial applications

Choosing the best industrial controller requires evaluation of automation, communication and security needs.

By Benson Hougland
Courtesy: CFE Media
PLCs, PACs July 30, 2019

Making things work as part of the IIoT

Sensors are on the front line of the data gathering process, which is vital for the Industrial Internet of Things (IIoT).

By Suzanne Gill
Figure 2: Ladder logic programming example; LL is the most commonly used PLC programing, most closely resembling circuit diagrams used for relays. Courtesy: Frank Lamb, Automation Primer
PLCs, PACs July 22, 2019

Top 5 Control Engineering articles July 15-21

Articles about PLC programming languages, digitalization advantages, alarm management tips, operationalizing cybersecurity, and CNC developments were Control Engineering’s five most clicked articles from July 15-21. Miss something? You can catch up here.

By Chris Vavra
Users need to consider value, design flexibility, and potential modifications when choosing an enclosure for a manufacturing application. Courtesy: Rittal
PLCs, PACs July 15, 2019

Top 5 Control Engineering articles July 8-14

Articles about selecting an enclosure, using context with the IIoT, cybersecurity best practices, digitalization advantages, and connecting a PLC were Control Engineering’s five most clicked articles from July 8-14. Miss something? You can catch up here.

By Chris Vavra
Figure 4: A parsing instruction, such as this JSONPARSE block in an AutomationDirect BRX PLC, is needed so the PLC can drill into the layers of objects within a JSON data payload and extract the desired information. Courtesy: AutomationDirect
PLCs, PACs July 8, 2019

Top 5 Control Engineering articles July 1-7

Articles about connecting a PLC, the Career and Salary Survey, June hot topics, choosing a transparent CIP system, and choosing the right HMI were Control Engineering’s five most clicked articles from July 1-7. Miss something? You can catch up here.

By Chris Vavra
Figure 2: Ladder logic programming example; LL is the most commonly used PLC programing, most closely resembling circuit diagrams used for relays. Courtesy: Frank Lamb, Automation Primer
PLCs, PACs July 8, 2019

Other PLC programming languages

Ladder logic is commonly used in the U.S. for programmable logic controllers (PLCs), but other languages are better suited for some programming applications. See sample PLC code in five languages.

By Frank Lamb
Figure 3: An HTTP instruction, such as this HTTPCMD block in an AutomationDirect BRX PLC, enables a PLC to initiate a request to an internet website API to obtain data. AutomationDirect Do-more Designer Software has the necessary instructions. Courtesy: AutomationDirect
PLCs, PACs July 1, 2019

Benefits of connecting a PLC to the internet

Programmable logic controllers (PLCs) are now gaining information technology (IT) abilities to interact directly with the internet, creating new automation and information possibilities.

By Bill Dehner
An inverted Universal Robots 10 kg payload robot with a two-camera configuration makes a test sweep over an automobile in progress, using machine vision to improve manufacturing quality. Walter LaPlante, advanced manufacturing systems engineer at Ford Motor Co., Redford, Mich., facility explained some Ford machine vision applications at Automate 2019. Courtesy: Mark T. Hoske, Control Engineering, CFE Media
PLCs, PACs June 14, 2019

Envisioning more at Ford

Plans are underway at Ford to use machine vision with robotics to increase quality and throughput, as explained at Automate 2019. See video.

By Mark T. Hoske
Figure: Comparison of transactional data extraction to the more sophisticated requirements of industrial data extraction across a number of factors. Courtesy: HighByte
PLCs, PACs June 12, 2019

Improve industrial data integration with ETL software

Extract, transform, load (ETL) software can help improve data gathering for operations technology (OT) applications, but there are major challenges with data integration that companies need to overcome.

By John Harrington