Mitsubishi Electric MR-JE-C Series Instruction Manual page 28

2. CC-Link IE Field Network Basic/SLMP
(c) Item list
Item
Command
Sub command
Index
Sub Index
Reserved
Number of data value
Read data
(2) SDO Download (CiA 402 object write)
When the slave stations (servo amplifiers) receive the CiA 402 object write request from the master
station (external device), they write a specified value to the object corresponding to the specified Index
or Sub Index.
(a) Request message (command and the following)
Command Sub command
L H
20h 40h 02h
(b) Response message
1) At normal completion (end code and the following)
End code
L
00h
2) At abnormal completion
The response message is the same as that of section 2.4.2 (2) (b).
(c) Item list
Item
Command
Sub command
Index
Sub Index
Reserved
Number of data value
Write data
Size Endian
2 bytes Little 4020h
2 bytes Little 0001h
2 bytes Little Specify Index of the object. (Refer to chapter 7.)
For the response message, the value specified in the request message is
stored.
1 bytes Little Specify Sub Index of the object. (Refer to chapter 7.)
For the response message, the value specified in the request message is
stored.
1 bytes 00h (fixed)
2 bytes Little Read data: 00h (fixed)
Variable Little The response data of the object is stored.
Index
L H L
00h Refer to (2) (c) in this section for details.
Index
H L H
00h Refer to (2) (c) in this section for details.
Size Endian
2 bytes Little 4020h
2 bytes Little 0002h
2 bytes Little Specify Index of the object. (Refer to chapter 7.)
For the response message, the value specified in the request message is
stored.
1 bytes Little Specify Sub Index of the object. (Refer to chapter 7.)
For the response message, the value specified in the request message is
stored.
1 bytes 00h (fixed)
2 bytes Little Write data: Specify the size in hexadecimal.
Variable Little Specify the write data of the object.
Sub
Reserved
Index
H - -
Sub Number of data
Reserved
Index value
- - L
2 - 11
Description
Number of data
value
L H L or H (variable)
H
Description
Write data