canFlush (Function)

This will remove all messages received from the CAN bus and currently stored in the internal receive buffer (see canReceiveMessage).

Input:

port : SINT (1/2) (default 1)

The port of the CAN bus.

Returns: INT

Declaration:

FUNCTION canFlush : INT;

VAR_INPUT
  port : SINT := 1;
END_VAR;

Example:

INCLUDE rtcu.inc
 
PROGRAM CANExample;
 
// Open can
canOpen(baud := 250);
...
 
BEGIN
  ...
  ELSIF cmd = cmd_flush THEN
    // Clear received CAN messages
    canFlush();
  END_IF;
  ...
END;
 
END_PROGRAM;