Method for operating a process automation system using at least two communication protocols P1 and P2 , in particular being part of a communication hierarchy wherein one is transmitted "over" the other, and having at least one P1-aware, namely a wireless aware component using the P1 Protocol, wherein P1 is a WirelessHART protocol for the detection of the occurrence, in particular start and end, of a volume data transfer respectively an upload or download, in particular data transfer including at least two commands, from at least one P1-unaware, namely a wireless-unaware component, using the P2 protocol, being a HART protocol, wherein upon such detection the at least one P1-aware component requests for bandwidth on behalf of that P1-unaware component to decrease the total duration of communication and subsequently releases this bandwidth again, wherein such a volume data transfer respectively an upload or download is detected by either a. explicit initiation of the up or download in the P1-aware component , or by b. automatic detection in the P1-aware component , and wherein bandwidth is requested and released after the upload or download alternatively a'. by using proprietary mechanisms of a P1 communication master like a gateway or linking device or their integration components like a Field Device Tool, FDT, Communication Device-Type-Manager, DTM, Field Device Integration, FDI, Gateway Device Package, FDI Communication Server, b'. by implementing a proprietary command in a P1 /P2 linking device or field device that causes them to request bandwidth from a P1 master or their integration components ,like an FDT Communication DTM, FDI Gateway Device Package, FDI Communication or c'. by sending a corresponding standardized request command directly to a P1 resource management function , e.g. service requests being sent to a network manager inside of the P1 master . a. explicit initiation of the up or download in the P1-aware component , or by b. automatic detection in the P1-aware component , and wherein bandwidth is requested and released after the upload or download alternatively a'. by using proprietary mechanisms of a P1 communication master like a gateway or linking device or their integration components like a Field Device Tool, FDT, Communication Device-Type-Manager, DTM, Field Device Integration, FDI, Gateway Device Package, FDI Communication Server, b'. by implementing a proprietary command in a P1 /P2 linking device or field device that causes them to request bandwidth from a P1 master or their integration components ,like an FDT Communication DTM, FDI Gateway Device Package, FDI Communication or c'. by sending a corresponding standardized request command directly to a P1 resource management function , e.g. service requests being sent to a network manager inside of the P1 master . a'. by using proprietary mechanisms of a P1 communication master like a gateway or linking device or their integration components like a Field Device Tool, FDT, Communication Device-Type-Manager, DTM, Field Device Integration, FDI, Gateway Device Package, FDI Communication Server, b'. by implementing a proprietary command in a P1 /P2 linking device or field device that causes them to request bandwidth from a P1 master or their integration components ,like an FDT Communication DTM, FDI Gateway Device Package, FDI Communication or c'. by sending a corresponding standardized request command directly to a P1 resource management function , e.g. service requests being sent to a network manager inside of the P1 master . <EOS>