Set Sdo Client - ADF Web HD67461 User Manual

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SET SDO CLIENT:

By pressing the "Set SDO Client"
button from the main window of
SW67461 (Fig. 2) the window "Define
NMEA2000 Frames to use the Client
SDO" appears (Fig. 10).
In this window is possible to configure
five NMEA2000 messages used to read
and write SDO data from other devices
in the network CANopen.
The first two frames are used to read
a SDO, the last three messages are
used to write a SDO.
READ SDO
Request frame NMEA2000 to read a SDO
When the gateway receive this message, it sends a read SDO request to CANopen network.
The coordinates of the SDO are inside the data bytes of the NMEA2000 message in this format:
Byte1 Byte2
ID Device Index
Answer frame NMEA2000 of a read SDO
The gateway sends this frame with the answer of the SDO.
The Data bytes of this message are so formed:
Byte1 Byte2
ID Device REQ Index REQ
ADFweb.com Srl – IT31010 – Mareno – Treviso
Byte3 Byte4
Index SubIndex
Byte3 Byte4
Index REQ SubIndex REQ
User Manual NMEA2000 / CANopen
Document code: MN67461_ENG
Figure 10: "Define NMEA2000 Frames to use the Client SDO" window
Byte5 Byte6
Num Byte Not used = 0
Byte5 Byte6
Data byte 1 Data byte 2
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Byte7 Byte8
Not used = 0 Not used = 0
Byte7 Byte8
Data byte 3 Data byte 4
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