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Example for expedited transfer
Step 1. The Rx SDO message is sent to the CAN-8423 to access the object
entry with index 0x1400 and sub -index 02 stored in the communication profile
area. For example, the value of this object entry is changed to 5, as the node
ID for the CAN-8423 is set to 1.
11-bit COB-ID (bit)
Func Code
10
9
8
7
6
5
1
1
0
0
0
0
SDO client
ccs
:
1
n
:
3
e
:
1
s
:
1
m
:
00 14 02
d
:
05 00 00 00
Because the n=3, only the 4th byte is valid. Therefore, the feedback
value is 05.
Step 2. The CAN-8423 will reply with the message to finish the data download.
Then, users can use the upload methods to read back the value.
11-bit COB-ID (bit)
Func Code
10
9
8
7
6
5
1
0
1
1
0
0
SDO client
scs
:
3
m
:
00 14 00
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
2F
00
14
Data
Length
0
1
2
8
60
00
14
8-byte Data (byte)
3
4
5
02
05
00
00
SDO server
(CAN-8x23)
8-byte Data (byte)
3
4
5
02
00
00
00
SDO server
(CAN-8x23)
6
7
00
6
7
00
89
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