Please download firmware file from the following link
PFN-2000 Series => ftp://ftp.icpdas.com/pub/cd/fieldbus_cd/profinet/remote%20io/pfn-2000/firmware/
I-7580 => ftp://ftp.icpdas.com/pub/cd/fieldbus_cd/profinet/converter/i-7580/firmware/
GW-7662 => ftp://ftp.icpdas.com/pub/cd/fieldbus_cd/profinet/gateway/gw-7662/firmware/
GW-7663 => ftp://ftp.icpdas.com/pub/cd/fieldbus_cd/profinet/gateway/gw-7663/firmware/
