ADF Web HD67461 User Manual page 25

Industrial Electronic Devices
WRITE SDO
Request frame NMEA2000 to write a SDO (1/2)
When the gateway receive this message it save the coordinates of write SDO request.
The coordinates of the SDO are inside the data bytes of the NMEA2000 message in this format:
Byte1 Byte2
ID Device Index
Request frame NMEA2000 to write a SDO (2/2)
When the gateway receive this message it send the SDO write request in CANopen network.
The coordinates of the SDO are inside the data bytes of the NMEA2000 message in this format:
Byte1 Byte2
Data Byte 1 Data Byte 2
Answer frame NMEA2000 of a write SDO
The gateway send this frame when a Write SDO request finish correctly.
The Data byte of this message are so formed:
Byte1 Byte2
ID Device REQ Index REQ
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Byte3 Byte4
Index SubIndex
Byte3 Byte4
Data Byte 3 Data Byte 4
Byte3 Byte4
Index REQ SubIndex REQ
User Manual NMEA2000 / CANopen
Document code: MN67461_ENG
Byte5 Byte6
Num Byte Not used = 0
Byte5 Byte6
Not used = 0 Not used = 0
Byte5 Byte6
1 Not used = 0
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Byte7 Byte8
Not used = 0 Not used = 0
Byte7 Byte8
Not used = 0 Not used = 0
Byte7 Byte8
Not used = 0 Not used = 0
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