Lenze EtherCAT 8400, Communications Manual

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Lenze · E84AYCET communication module (EtherCAT) · Communication Manual · DMS 5.0 EN · 05/2013 · TD17
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9 Parameter data transfer
9.2 Reading and writing parameters
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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.
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 of Lenze code numbers within the manufacturer-specific area of the object directory is
between 8192 (0x2000) and 24575 (0x5FFF).
Structure of a mailbox datagram
Mailbox data are transmitted in a datagramm within an EtherCAT frame. 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 of 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