CAN-8123/CAN-8223/CAN-8423 user’s manual (Revision 3.00, May/22/2009) ------
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Upload SDO Block Segment Protocol
After finishing the Initiate SDO Block Upload protocol, the SDO server
starts to respond to the data by using the Upload SDO Block Segment protocol.
Each block contains 1 segment for the minimum and 127 segments for the
maximum. One segment consists of 1~7 bytes. And only one block can be
transmitted during an Upload SDO Block Segment protocol. The SDO server
can send a maximum of 127 blocks by using 127 Upload SDO Block Segment
protocols. The following figure is the structure for the Upload SDO Block
Segment protocol.