Reconfigure (FB)

FUNCTION_BLOCK Reconfigure EXTENDS CBM.ETrig

This function block reads and applies the whole configuration of the corresponding device and all subdevices. After Reconfiguring all changed configuration values (Enable flag, Parameter changes, ...) take effect. If device doesn't support reconfiguring eError returns ERROR.NOT_SUPPORTED.

Example

Following example code disables a slave device beneath a fieldbus master.

PROGRAM PLC_PRG
VAR
    iState : INT := 0;
    reconfig : DED.Reconfigure;
END_VAR

CASE iState OF

   0: //Disable slave device: Slave1 (= name in device tree)
      Slave1.Enable := FALSE;
      iState := 1;

   1: //start reconfiguring of fieldbus master
      reconfig(xExecute := TRUE, itfNode := Master);
      IF reconfig.xDone THEN
          iState := 3;
      ELSE IF reconfig.xError THEN
          iState := 2;
      END_IF

   2: //reconfiguring error
      //TODO: Add code here
      reconfig(xExecute := FALSE);

   3: //reconfiguring successful ==> slave disabled
      //TODO: Add code here
      reconfig(xExecute := FALSE);

END_CASE

Note

This feature may not be supported by all fieldbus drivers. eError will return ERROR.NOT_SUPPORTED if not supported.

InOut:

Scope	Name	Type	Comment
Input	itfNode	INode	The node to be reconfigured.
Output	eError	ERROR	operation error code