No.     Time        Source                Destination           Protocol Length Info
 157042 0.000258    03:01:01:01:01:01     Broadcast             ECAT     164    'FPWR': Len: 136, Adp 0x1001, Ado 0x1c00, Wc 1  Mbx(CoE SDO Req : 'Initiate Download' (1) Idx=0x427f Sub=0)

Frame 157042: 164 bytes on wire (1312 bits), 164 bytes captured (1312 bits)
Ethernet II, Src: 03:01:01:01:01:01 (03:01:01:01:01:01), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
EtherCAT frame header
EtherCAT datagram(s): 'FPWR': Len: 136, Adp 0x1001, Ado 0x1c00, Wc 1 
    EtherCAT datagram: Cmd: 'FPWR' (5), Len: 136, Adp 0x1001, Ado 0x1c00, Cnt 1
        Header
        EtherCAT Mailbox Protocol:CoE SDO Req : 'Initiate Download' (1) Idx=0x427f Sub=0
            Header
            CoE
                Number: 0
                Type: SDO Req (2)
                SDO Req : 'Initiate Download' (1) Idx=0x427f Sub=0
                Index: 0x427f
                SubIndex: 0x00
                Length: 0x00000002
                Data: 0500
        Data: 000000000000000000000000000000000000000000000000000000000000000000000000…
        Data: 000000000000000000000000000000000000000000000000000000000000000000000000…
        Working Cnt: 1
        Working Cnt: 1