ES601-US OPERATING MANUALAutomated Testing/Chapter 6 # Page 1276.1.5.9 The A CheckitemTheA Checkitem is utilizedonly in Checklists and allows ES601-US toinvoke a Safety AutoSequence, a ECG AutoSequence, TesterAutoSequences, or Physical Inspections from within the Checklist. TesterAutoSequences and Physical Inspectionscannot include an A Checkitem.In a Checklist, any one of the Checkitems can optionally be a SafetyAutoSequence, and any one of the Checkitems can optionally be a ECGAutoSequence. A Checklist cannot have more than one A Checkitem thatinvokes a Safety AutoSequence, or more than one A Checkitem that invokesa ECG AutoSequence.A Checklist can optionally haveone or more A Checkitems that invokeTester AutoSequences and/or Physical Inspections. The total number ofCheckitems resulting from the inclusion of such Physical Inspections and/orTester AutoSequences in a Checklist, via corresponding A Checkitems,cannot exceed a maximum of96 steps.Practically speaking, since Physical Inspections and other Tester AutoSequences may have up to 24Checkitems each, a Checklist will be able to optionally incorporate, at most, 3 to 4 Physical Inspectionsand/or Tester AutoSequences within it.Thecommand portion of the A Checkitem encodes the AutoSequence that will be run from within theChecklist. Theprefix of the command comprises three alphabetic characters that define the type ofAutoSequence, followed by two numeric digits "NN" that specify the number of the AutoSequence,according toFigure 92,Figure 122:
