MES, MOM & Shop-Floor Data Systems worked example

Production Event Capture Rate at 69% system reliability factor: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop system reliability factor to 69%, then walk the calculation through step by step. Measure how many production events (starts, stops, counts, quality checks) the MES logs per hour of production, adjusted for data infrastructure reliability.

The inputs for this scenario

  • Production events logged in period: 8,400 events (held at the documented default)
  • Production hours in period: 160 hr (held at the documented default)
  • System reliability factor: 69 % (the input this scenario stresses; the baseline uses 96)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw capture rate = production events logged / production hours.
  • Effective event capture rate works out to 36.22 units/hr at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 52.5 units/hr at these inputs.
  • System reliability factor works out to 69 % at these inputs.
  • Production hours works out to 160 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where system reliability factor sits at 96% and the headline result is 50.4 units/hr, this scenario comes in 28.13% below the baseline at 36.22 units/hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to system reliability factor, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. The reliability factor is an assumed multiplier; if you do not measure actual dropped-event rates, the effective figure is only as good as that estimate.

Results at a glance

  • Effective event capture rate: 36.22 units/hr (headline result)
  • Raw throughput: 52.5 units/hr
  • System reliability factor: 69 %
  • Production hours: 160 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Production Event Capture Rate calculator, set system reliability factor to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.