MAY-JUN 2018

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INTECH MAY/JUNE 2018 23 Control and I/O Connecting control outputs and inputs should be as simple and foolproof as possible, particularly with the larger point counts to support Industry 4.0 and Industrial Internet of Things. Ide- ally following industry norms, I/O terminations are made to removable and hot-swappable terminal blocks incorporating a quick connect to the edge controllers that have a captive hold-down (i.e., screw). Terminations made to the block should support up to 14 AWG using accepted indus- try methods, including spring clamps and screws. Supporting the high point counts for Industry 4.0 and Industrial Internet of Things high-density I/O modules should strongly be considered (i.e., 24 channels per module). Multiple discrete and analog input types and at least 20-bit resolution for analog inputs to support the wide range of control and big data applications should be in- cluded. Local LEDs indicating the sta- tus of each channel enable local users to verify operation at a glance (figure 3). In addition, I/O configuration should be simple, with individual I/O modules reporting their identities to the EPIC. Ideally, a local touchscreen will have I/O specifications, wiring diagrams, and channel status to facilitate com- missioning and troubleshooting. Simplifying edge automation Remote access used to be a complex undertaking for machine builder and process skid OEMs, with numerous is- sues related to performance, cyberse- curity, and IT details. New automation components and open standards, such as MQTT and Sparkplug, are address- ing this issue, making it far easier and less expensive to deploy and support highly secure remote access systems. n ABOUT THE AUTHOR Benson Hougland (bensonh@opto22. com), vice president, marketing and prod- uct strategy, drives strategy for Opto 22 products, connecting the real world to computer networks. He has 30 years of experience in IT and industrial automation and speaks at trade shows and confer- ences, including IBM Think, ARC Forum, and ISA. Hougland's 2014 TEDx Talk in- troduces nontechnical people to the IoT. View the online version at FACTORY AUTOMATION RESOURCES Q&A with ISA authors Larry Thompson and Tim Shaw, Industrial Data Communications, Fifth Edition trial-data-communications-fifth-edition "Using the cloud to store and distribute manufacturing data" "A new way to envision your remote process" remote-process Build it, See it, Price it, Order it. Point and click or tap to specify valve type, end connections, actuator, and accessories. Model number, price, description, and photo all update instantly! Try one today at: We Make Valve Automation Easy! Online Valve Configurators Quickly & Easily Specify a Complete Automated Valve Assembly on Your PC, Tablet, or Phone Wherever you see this image

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