Lenze E94AYCET - Manual (Page 68)

9 Parameter data transfer
9.1 Establishing a connection between master and slave
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Lenze · E94AYCET communication module (EtherCAT®) · Communication Manual · DMS 9.0 EN · 02/2014 · TD17
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9 Parameter data transfer
Parameter data are transmitted via the fieldbus as so-called SDOs (Service Data Objects). The SDO
services provide for the write and read access to the object directory.
The SDO channel provides for access to
Implemented CoE objects ( 79) and Lenze codes by means
of the CoE protocol.
If the "CiA402" technology application is used in the drive, all CANopen CiA402 objects implemented
can be accessed. (See documentation on the "CiA402" technology application in the reference
manual/online help for the Servo Drive 9400.)
In general, the parameter data transfer is not time-critical.
Parameter data are, for instance, operating parameters, motor data, diagnostic information.
9.1 Establishing a connection between master and slave
Basically a master can always request parameter jobs from a slave if the slave is at least in the "Pre-
operational" state.
[9-1] Data communication via the SDO channel
E94AYCET008
Master
read
write
SDO-channel
Slave