Sdo Send/Receive - Mitsubishi Electric MELSEC iQ-R Series User Manual

SDO send/receive

In SDO send/receive, SDO read and SDO write can be executed.
SDO is a function to directly access an object entry in the object dictionary of any CANopen node.
Operation method
The "SDO send / receive" window can be displayed by the following operation.
[Online]  [SDO Send /Receive]
Select "Read data" or "Write data", set necessary data, and click the [Execute] button to display the execution result.
Item
SDO parameter Data direction
Data Node ID
Index
Sub-index
Data length
Data
Result
Explanation
3 CANopen Configuration Tool
114
3.3 Functions
Description
"Read data" or "Write data" can be selected.
Set the node ID of the node from which data is read or to which data is written.
Set the index in the object dictionary.
For indexes, refer to the following.
Page 186 Object Dictionary
Set the subindex in the object dictionary.
For subindexes, refer to the following.
Page 186 Object Dictionary
Set the data length of data to transmit.
Set send data.
Prepends with "0x" when specifying send data using a hexadecimal number.
Click the [Execute] button to display the SDO send/receive results.
When "Read data" is successful, "SDO_READ_SUCCESS" is displayed and
the result is displayed in each of the following data types.
• Hexadecimal number
• Decimal number
• Floating point number
• ASCII
When "Write data" is successful, "SDO_WRITE_SUCCESS" is displayed.
If "Read data" or "Write data" fails, the error details are displayed.
Displays the description of the selected item.
Setting range
• Read data
• Write data
(Default: Read data)
1 to 127
(Default: 127)
0x0000 to 0xFFFF
(Default: 0x0000)
0x00 to 0xFF
(Default: 0x00)
• STRING
• BYTE_LENGTH_1
• BYTE_LENGTH_2
• BYTE_LENGTH_4
• BYTE_LENGTH_6
• BYTE_LENGTH_8
(Default: BYTE_LENGTH_2)

(Default: 0)
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