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Step 1. When the Initiate SDO Block Download protocol is carried out, the
CAN-8423 will be informed with the value of the object entry with index 0x1400
and sub-index 02 modified by the method of the SDO Block Download,
11-bit COB-ID (bit)
Func Code
10
9
8
7
6
5
1
1
0
0
0
0
SDO client
ccs
:
6
cc
:
0
s
:
0
cs
:
0
m
:
00 14 02
size
:
00 00 00 00
Because the value of s is 0, the size is not used.
Step 2. The CAN-8423 will reply to the message by using the Initiate SDO
Block Download protocol. Then, the SDO client will download the object's data
with index 0x1400 and sub-index 02 to CAN-8423.
11-bit COB-ID (bit)
Func Code
10
9
8
7
6
5
1
0
1
1
0
0
SDO client
scs
:
5
sc
:
0
s
:
0
ss
:
0
m
:
00 14 02
blksize
:
7F
CAN-8x23 user's manual (Revision 3.20, Mar/08/2012) ------
Node ID
RTR
4
3
2
1
0
0
0
0
0
1
0
Node ID
RTR
4
3
2
1
0
0
0
0
0
1
0
Data
Length
0
1
2
8
C0
00
14
Data
Length
0
1
2
8
A0
00
14
8-byte Data (byte)
3
4
5
02
00
00
SDO server
(CAN-8x23)
8-byte Data (byte)
3
4
5
02
7F
00
SDO server
(CAN-8x23)
6
7
00
00
6
7
00
00
95
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