IIoT, SCADA & Edge Connectivity worked example

SCADA Migration Workload at 43% fat, sat, validation, and cutover allowance: a worked example

This worked example runs the scada migration workload numbers for a tougher week than the baseline: 43% fat, sat, validation, and cutover allowance instead of the typical 60%. Estimate engineering hours to migrate a SCADA project from one platform to another, from screens or POU count to migrate, the engineer migration rate (objects per hour), and an allowance for FAT, SAT, validation, and cutover.

The inputs for this scenario

  • Screens or program organization units (POUs) to migrate: 260 screens (held at the documented default)
  • Engineer migration throughput: 1 screens / hr (held at the documented default)
  • FAT, SAT, validation, and cutover allowance: 43 % (the input this scenario stresses; the baseline uses 60)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base SCADA migration hours = screens or POUs รท engineer rate.
  • Required SCADA migration hours works out to 372 hr at these inputs, and this is the headline figure for the scenario.
  • Base SCADA migration hours works out to 260 hr at these inputs.
  • FAT, SAT, and cutover allowance works out to 43 % at these inputs.
  • Engineer migration rate works out to 1 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where fat, sat, validation, and cutover allowance sits at 60% and the headline result is 416 hr, this scenario comes in 10.62% below the baseline at 372 hr.
  • Use it when scoping a SCADA or HMI replatform, sizing a migration team, or sanity-checking an integrator's fixed-price bid against your own screen inventory. 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

  • Required SCADA migration hours: 372 hr (headline result)
  • Base SCADA migration hours: 260 hr
  • FAT, SAT, and cutover allowance: 43 %
  • Engineer migration rate: 1 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live SCADA Migration Workload calculator, set fat, sat, validation, and cutover allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.