FC 300 CANopen
MG.33.J1.02 VER. 050301 – VLT is a registered Danfoss trademark
41
Download segment
The download segment command is used when more than 5 bytes will be downloaded.
Client request:
0 Byte
1
8
7..5 ccs
4 x
3,2,1 n
0 c
segment data
Server response:
0 Byte
1
8
7..5 ccs
4 t
3..0 X
reserved
t: toggle bit
c: indicator for more segments
Byte 0
Bit 5-7
Bit 4
Bit 3..1
Bit 0
ccs / scs
t toggle
n
c
0: Download seg. request
ccs
0: 1. Seg
starts with 0
0: all data valid
(size 7 byte)
0: more segments to be
downloaded
1: Download seg. response
scs
1: byte 7 no data
(size 6 byte)
0: no more segments to be
downloaded
2: -
…
3: -
7: byte 2 - 7 no data
(size 1 byte)
Initiate upload
The initiate upload starts the SDO communication from the client to the server.
Client request:
0 Byte
1
4
8
7..5 ccs
4 ..0 x
m index, sub index
reserved
Server response:
0 Byte
1
4
8
7..5 ccs
4 x
3,2 n
1 e
0 s
m index, sub index
d data
Byte 0
Bytes 4-7
Bit 5-7
Bit 4
Bit 2,3
Bit 1
Bit 0
ccs / scs
X
n
e
s
data
0: -
0
0: all data valid
(size 4 byte)
0 0 reserved
1: -
0
1: byte 7 no data
(size 3 byte)
0
1
numbers of bytes for
upload
2: init. upload request
ccs / scs
0
2: byte 6 - 7 no
data
(size 2 byte)
1
0
numbers of unspecified
Bytes for upload
3: -
0
3: byte 5 - 7 no
data
(size 1 byte)
1
1
data, length 4-n
