PLC FAT and SAT checklist: test behavior and handover evidence
Plan factory and site acceptance around requirements, observable results, failure states, approved changes and recoverable project files.
Event frame
Time-bounded historian record that gives an event operational context.
A historian object that adds start time, end time, asset, and context to an event such as a batch, downtime, maintenance job, or alarm episode. Event frames turn raw time-series points into analyzable operational episodes.
See also: Historian · OEE · MES
Use the concept: Industrial automation fundamentals · PLC FAT & SAT checklist template · OT backup & restore test template
In depth
OT backup and restore testing: prove the recovery path
Inventory the files and dependencies needed to recover a control system, set recovery objectives, and test restoration on an isolated target.
Historian sampling and deadband: budget storage without losing events
Estimate raw historian volume, distinguish acquisition from storage filtering, and validate compression against the signals and events that matter.