Lenze E94AYCDN - Manual (Page 34)

7 Data transfer
7.1 Communication channels
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Lenze · E94AYCDN communication module (DeviceNet™) · Communication Manual · DMS 5.0 EN · 02/2014 · TD17
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7 Data transfer
7.1 Communication channels
The Telegram types ( 35) are assigned to the communication channels according to their time-
critical behaviour:
The process data channel transmits I/O data.
• The drive is controlled by means of the I/O data.
• The host (PLC, scanner) can directly access the I/O data. In the PLC, the data are, for instance,
directly stored in the I/O area.
• I/O data are not stored in the drive (device).
• I/O data are transmitted cyclically between the host and the drives (permanent exchange of
current input and output data).
The parameter data channel transmits explicit messages.
• The parameter data channel provides access to all Lenze codes.
• Parameter changes must be stored via code C00002 code of the Servo Drives 9400.