Alarm Limits with Hysteresis, Moving Averages & Filtered Signals
This lesson is part of the course
In this lesson
You build a high alarm that only clears after the value falls through a deadband, smooth a noisy signal with a moving average and a first-order lag filter, and count how often an alarm without deadband would chatter.
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Lessons in this course
- Linear Scaling: Raw Counts to Engineering Units and Back Locked
- 4–20 mA Live-Zero Inputs: Percent, Units, Out-of-Range & Wire Breaks Locked
- Output Scaling: Setpoints to mA, Card Counts & Volts with Clamping Locked
- Pressure to Level & Volume: Density, Cylinders & Strapping Tables Locked
- Totalisers: Flow per Interval, Shift Totals & Counter Rollover Locked
- Timers, Counters & Run-Hours: On-Delay Logic and Service Flags Locked
- Conveyors & Encoders: Belt Speed, Required Motor rpm, Pulses to Distance Locked
- Alarm Limits with Hysteresis, Moving Averages & Filtered Signals Locked