Lenze E94AYCET

9 Parameter data transfer
9.2 Reading and writing parameters
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Lenze · E94AYCET communication module (EtherCAT®) · Communication Manual · DMS 10.2 EN · 11/2018 · TD06
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9.2 Reading and writing parameters
Parameters ...
• for instance are set for one-time system settings or if materials are changed within a machine;
• are transmitted with a low priority.
In the case of Lenze inverters, 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 inverter are addressed by the
index.
The index for Lenze code numbers is in the manufacturer-specific area of the object directory
between 8192 (0x2000) and 24575 (0x5FFF).
Structure of a mailbox datagram
In a datagram, mailbox data are transferred within an EtherCAT telegram. The data area of the
mailbox datagram has the following structure:
Conversion formula
Index [dec] Index [hex]
24575 - Lenze code 0x5FFF
- Lenze code
hex
Example for C00002 (device commands)
Index [dec] Index [hex]
24575 - 2 = 24573 0x5FFF - 2 = 0x5FFD
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