Lenze 3241C - Manual (Page 19)

API functions 3

17
Response
Structural element Type Bits Description FIFO
Header 1 DWORD
Value BYTE 24-31 2. value
Value BYTE 16-23 1. value
Number of values BYTE 8-15 Number of bytes
(max. 64)
Status BYTE 0-7 Status information (0 = OK)
1 DWORD
Values ARRAY Other values to be transmitted n DWORDs
Notes:
All SDOs are to be stored in a DWORD-aligned manner.
Job is completed automatically by the driver.
3.4.5 Memory requirements for SDO
For SDO there are also two directions:
 L-force Controller transmits control data/commands to the backplane bus
controller
 Backplane bus controller transmits control data/status information to the
L-force Controller
For both directions FIFOs are used as mailbox. The size of the FIFOs is 128 bytes in
each case.