BECKHOFF TWINCAT 3 / CODESYS — MATCHED ST TEACHING CORE
======================================================

Purpose
  Compare one small IEC-style function block in two separate projects.
  This is NOT an importable project, I/O map, safety program or field procedure.

FUNCTION_BLOCK FB_PumpCtrl
VAR_INPUT
    Start           : BOOL;
    Stop            : BOOL;
    Feedback        : BOOL;
    Reset           : BOOL;
    FeedbackTimeout : TIME := T#5s;
END_VAR
VAR_OUTPUT
    Cmd             : BOOL;
    Fault           : BOOL;
END_VAR
VAR
    FeedbackTimer   : TON;
END_VAR

(* Ordinary command-state teaching logic. Physical output mapping is separate. *)
IF Stop OR Fault THEN
    Cmd := FALSE;
ELSIF Start THEN
    Cmd := TRUE;
END_IF;

FeedbackTimer(
    IN := Cmd AND NOT Feedback,
    PT := FeedbackTimeout
);

IF FeedbackTimer.Q THEN
    Fault := TRUE;
    Cmd := FALSE;
END_IF;

IF Reset AND NOT Cmd AND NOT Feedback THEN
    Fault := FALSE;
END_IF;

END_FUNCTION_BLOCK

PORTABLE CALL INTENT
  Pump(
      Start := StartPulse,
      Stop := StopRequest,
      Feedback := PumpFeedbackQualified,
      Reset := ResetPulse,
      FeedbackTimeout := T#5s
  );
  PumpCommandRequest := Pump.Cmd;

TWINCAT 3 ADAPTER WORK (REQUIRED)
  - Select and record XAE/XAR build and target identity.
  - Resolve the TON library/type from controlled TwinCAT references.
  - Add the PLC project and exact referenced real-time task.
  - Link typed adapter variables to the approved process-image channels.
  - Configure boot project, retain/persistent policy and diagnostics.
  - Compile, activate only under authorization, login, start and test.

CODESYS ADAPTER WORK (REQUIRED)
  - Select and record Development System, compiler, runtime and device package.
  - Resolve the TON library/type from the controlled Library Manager.
  - Add the Application, Task Configuration and PROGRAM call.
  - Map typed adapter variables in the exact device I/O Mapping editor.
  - Configure boot application, retain/persistent policy and diagnostics.
  - Compile, login/download or online-change only under authorization, run and test.

DO NOT ASSUME PORTABLE
  Project files; device packages; libraries; pragmas; namespaces; tasks;
  I/O addresses or update rules; ADS/gateway routes; persistence; boot behavior;
  online change; visualization; fieldbus; motion; safety; licences; diagnostics.

REQUIRED EVIDENCE
  Run BC-01 through BC-16 from the companion acceptance matrix on both exact
  targets. Retain build IDs, task settings, mappings and synchronized traces.