The benefits of remote access for manufacturing operations are widely known and accepted. This article details how modern SCADA systems are providing this access in a variety of ways to all manner of fixed and portable computing platforms and other devices.
Simple HMI systems have evolved into highly advanced SCADA solutions that provide key data to operators, engineers and plant managers from any location.
Human Machine Interface (HMI) has evolved significantly from the days in which operations staff had to sit in front of a single screen to monitor a machine or a process. HMI /SCADA (Supervisory Control and Data Acquisition) applications now not only monitor and help control equipment and processes, but also provide a huge range of information regarding machine and plant operations. Since many people consider HMI to be a low-end panel-mounted apparatus, the term SCADA will be used to refer to the more advanced applications discussed in this article.
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From Control White Papers