IMD 100 Integration manual 4189360015 Rev. G
Communication
Page 69 of 243
7.1.3 CANopen interface
See section
on page
for a description and a list of parameters (CANopen objects).
Info
CANopen uses little-endian format. That means that the least significant byte is sent first and
the most significant byte is sent last. For example, object ID 2098 is sent as 98 20. The same
also applies to data. However, it is not the whole data field that is little-endian, but each object
in the data field. Example of TPDO1 which has the following format:
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
POS-Actual (Obj. 0x206D)
POS-Actual_2 (Obj. 0x206F)
Data
Interpretation
7B 3C 3F 4F FF 1F 00 00
Resolver position: 4F 3F 3C 7B
SSI encoder position: 00 00 1F FF