CAN-8x23 user’s manual (Revision 3.20, Ma r/08/2012) ------
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5.1.4 SDO Block Download
The procedure of SDO Block Download is similar to the SDO Block
Upload. There are three steps during the SDO Block Download. The Initiate
SDO Block Download protocol is the beginning protocol for SDO Block
Download. In this protocol, the SDO server and SDO client will mutually
communicate. Afterwards, the SDO Block Download protocol will also be used.
And, data will be sent to SDO server by SDO client. After finishing the data
transmission, the client and server will use the End SDO Block protocol to
terminate the SDO Block Download. The following figures are the structures
for the three protocols.
Initiate SDO Block Download Protocol