Lenze EMF2192IB - Manual (Page 43)

Parameter data transfer
Reading and writing parameters
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43 EDSMF2192IB EN 3.1
9.2 Reading and writing parameters
Parameters ...
ƒ are set, for instance, for one−time system settings or if materials are changed within
a machine.
ƒ are transmitted with a low priority.
In the case of Lenze controllers, the parameters to be changed are contained in codes or in
the case of the CANopen device profile "CiA402" as device profile objects.
Indexing of the Lenze codes
If they are accessed via a communication module, the codes of the controller are addressed
by the index.
The index for Lenze codes is settled in the manufacturer−specific range of the object
directory between 8192 (0x2000) and 24575 (0x5FFF).
The index number for a code results as follows:
Conversion formula
Index (dec) Index (hex)
24575 − Lenze code 0x5FFF − (Lenze code)
hex
Example for C0001 (operating mode):
Index (dec) Index (hex)
24575 − 1 = 24574 0x5FFF − 0x0001 = 0x5FFE
Structure of a mailbox datagram
In a datagram, mailbox data are transferred within an EtherCAT frame. The data area of the
mailbox datagram has the following structure:
Mailbox
Header
CoE
Header
SDO control
byte
Index Subindex Data Data
6 bytes 2 bytes 1 byte 2 bytes 1 byte 4 bytes 1 ... n bytes