Lenze E84AVHC Series - 11.1 Process data transfer

Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010 L 573
8400 HighLine | Parameter setting & configuration
Fieldbus interface
Process data transfer
11.1 Process data transfer
The process data serve to control the controller. Thus the transfer of the process data is
time-critical.
 The process cycle is 1 ms, irrespective of the respectively plugged-in bus system and the
type of drive controller.
 Process data transfer takes place cyclically between the master system and the drive
controllers.
– This concerns the continuous exchange of current input and output data.
– In the case of the 8400 drive controller, 16 words per direction are exchanged.
 The master computer can directly access the process data.
Access to the process data takes place via the port blocks LP_MciIn and LP_MciOut (see
FB interconnection of the »Engineer«).
These port blocks are also called process data channels.
 The process data are not saved in the controller.
[11-1] External and internal data transfer between bus system, drive controller and function block interconnection
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