Service data object (sdo), Read object, Write object – WIKA D-21-9 User Manual
Page 7: Abort sdo transfer, Abort codes
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D-20-9 / D-21-9
GB
WIKA Additional Instructions Pressure Transmitter with CANopen Interface D-20-9 / D-21-9
7
2. Service Data Object (SDO)
With Service Data Objects the access to entries of a device’s object dictionary is provided.
Read Object
Master sends
ID
DLC
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
LSB
MSB
600h
+
Node-ID
8
CS =
40h
Index
Sub-
Index
00h
00h
00h
00h
Transmitter answers
ID
DLC
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
LSB
MSB
LSB
MSB
580h
+
Node-ID
8
CS =
42h
Index
Sub-
Index
Data
Write Object
Master sends
ID
DLC
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
LSB
MSB
LSB
MSB
600h
+
Node-ID
8
CS =
22h
Index
Sub-
Index
Data
Transmitter answers
ID
DLC
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
LSB
MSB
580h
+
Node-ID
8
CS =
60h
Index
Sub-
Index
00h
00h
00h
00h
Abort SDO Transfer
If an error occurred while reading or writing an object, the transmitter answers:
ID
DLC
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
LSB
MSB
LSB
MSB
600h
+
Node-ID
8
CS =
80h
Index
Sub-
Index
Abort Code
Abort Codes
0504 0001h
Client/server command specifier not valid or unknown
0601 0001h
Attempt to read a write only object
0601 0002h
Attempt to write a read only object
0602 0000h
Object does not exist in the object dictionary
0606 0000h
Access failed due to an hardware error
0609 0011h
Sub-index does not exist
0609 0030h
Value range of parameter exceeded
0800 0020h
Data cannot be transferred or stored to the application