Hello,
You need to define a new system alias:
in spro: SAP NetWeaver => Gateway => ODataChannel => Configuration => Connection settings => SAP NetWeaver Gateway to SAP System.
=> Manage SAP System Aliases.
There make a copy of ID5800, change the software component.
Also make sure you point to the system were the component IW_PGW is installed. (if it's on the local system you need to set the local flags)