IIoT, SCADA & Edge Connectivity worked example

SCADA Screen Utilization at 54% screen use-rate target: a worked example

This worked example runs the scada screen utilization numbers for a tougher week than the baseline: 54% screen use-rate target instead of the typical 75%. Estimate the share of SCADA HMI screens actually used by operators from the count of screens opened in the last period against the total screens deployed, against a use-rate target for the rationalization plan.

The inputs for this scenario

  • Screens opened by operators in the period: 180 screens (held at the documented default)
  • Total deployed SCADA screens: 260 screens (held at the documented default)
  • Screen use-rate target: 54 % (the input this scenario stresses; the baseline uses 75)

Working through the calculation

  • The calculation starts from the formula this tool documents: SCADA screen use rate = screens opened ÷ total deployed screens × 100.
  • SCADA screen use rate works out to 69.23 % at these inputs, and this is the headline figure for the scenario.
  • Use-rate gap to target works out to -15.23 points at these inputs.
  • Screens opened by operators works out to 180 count at these inputs.
  • Total deployed SCADA screens works out to 260 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where screen use-rate target sits at 75% and the headline result is 69.23 %, this scenario lands almost exactly on the baseline at 69.23 %.
  • Use it during HMI rationalization, after a high-performance HMI redesign, or in a periodic display-inventory review. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • SCADA screen use rate: 69.23 % (headline result)
  • Use-rate gap to target: -15.23 points
  • Screens opened by operators: 180 count
  • Total deployed SCADA screens: 260 count

Run it with your numbers

  • To rerun this with your own numbers, open the live SCADA Screen Utilization calculator, set screen use-rate target to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.