accShockEvent (Functionblock)

accShockEvent retirnes the information of a shock event.

Note that the information is only valid after a "Shock" event is raised; the event will be removed when this function block is called.

A "Shock" event is raised when a shock is experienced that matches the parameters set when monitoring was enabled.

Input:

None.

Output:

X  : BOOL

Detected shock on x-axis.

Y  : BOOL

Detected shock on y-axis.

Z  : BOOL

Detected shock on z-axis.

Ready : BOOL

Is event removed and data updated.

Declaration:

FUNCTION_BLOCK accShockEvent;
VAR_OUTPUT
   X     : BOOL;
   Y     : BOOL;
   Z     : BOOL;
   Ready : BOOL;
END_VAR;

Example:

INCLUDE rtcu.inc
 
VAR
   shock : accShockEvent;
END_VAR;
 
FUNCTION ReadShockEvent;
   shock();
   IF shock.ready THEN
      DebugMsg(message := "*** acceleration event received ***");
      DebugFmt(message := "-x=\1", v1 := INT(shock.x));
      DebugFmt(message := "-y=\1", v1 := INT(shock.y));
      DebugFmt(message := "-z=\1", v1 := INT(shock.z));
   END_IF;
END_FUNCTION;
 
THREAD_BLOCK accMonitor;
VAR
   event : INT := 0;
END_VAR;
 
WHILE event <> -1 DO
   event := accWaitEvent(timeout := -1);
   CASE event OF
      ...
      8: ReadShockEvent();
      ...
   END_CASE;
END_WHILE;
END_THREAD_BLOCK;