Watching the watcher: keeping an eye on SCADA systems
Summary
When I first started learning about industrial systems and architecture a few years ago, one of the first terms I bumped into was “SCADA” – short for “Supervisory Control and Data Acquisition”. SCADA systems monitor data in real-time and give users a human-machine interface (HMI) for providing process commands to components such as control valves, actuators, motors, and more. Metrics that are monitored include everything from pressure, power utilization and production time through to facility processes like heating, ventilation, and HVAC systems of buildings. This gathered data can be used for automated responses, such as reducing pressure in a system when it gets too high, as well as for gaining insights into the production process and for triggering alarms when there is a failure. PRTG gives you the ability to set thresholds so you’re alerted when conditions deviate from what is considered “normal”, and you can define notifications with targeted escalation using various mechanisms, like push messages, emails, and more.
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