IF_CarrierConfiguration - SetIfUserDataAccess (Method)

Overview

Task

Connecting a user-defined function block to a carrier.

Description

With the method SetIfUserDataAccess, you can connect your function block to a carrier.

1. Create a function block (for example FB_UserDataColor) that implements:

   • the interface IF_UserDataAccess for connecting your function block to the carrier

   • an interface for your specific data (for example IF_UserDataColor)

   

2. Connect your function block to the carrier with the method SetIfUserDataAccess .

   Code example for assigning the function block FB_UserDataColor to carrier 1:

   i_ifMulticarrier.raifCarrier[1].ifConfiguration.SetIfUserDataAccess(
           i_ifUserDataAccess    :=    fbUserDataColor,
           q_xError              =>    xError,
           q_etResult            =>    etResult,
           q_etResultMsg         =>    sResultMsg);

   
3. In an application function block (for example FB_LoadColorStation), the user-defined function block (for example FB_UserDataColor) is now accessible via the property ifUserDataAccess.

   
   Code example:

   IF i_ifCarrier <> 0
       AND_THEN i_ifCarrier.ifConfiguration.ifUserDataAccess <> 0
       AND_THEN i_ifCarrier.ifConfiguration.ifUserDataAccess.xUserDataAdded
   THEN
       xSuccessGetIfUserData  := _QUERYINTERFACE(i_ifCarrier.ifConfiguration.ifUserDataAccess, ifUserDataColor);
   END_IF

Inputs

Outputs