Dell Inventory Agent does not collect any data with SCCM

I have installed the Dell Inventory Agent on Dell servers succesfull but the agent does not send any data back to the SCCM server. I published all Dell software updates in SCCM but none of the Dell software updates is required or already installed on the Windows servers. Is there a way to determine if the agents works well? Where can I find the log where the agent logs his information? It looks like that the agent is not working.