Process data transfer
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EDS82ZAFIC EN 2.0
7
Process data transfer
INTERBUS transmits two different data types between the host (master) and the
controllers (slaves):
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Parameter data
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Process data
Process data
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Process data is transmitted via the process data channel.
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The process data serves to control the controller.
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The host can directly access the process data. Data in the PLC, for instance, are
directly stored in the I/O area.
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The data exchange between the master drive and the controller is required in the
shortest possible time. Here, small amounts of data can be transmitted cyclically.
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Process data ...
– are not saved in the controller;
– are transmitted between the host system and the controllers in order that a
constant exchange between current input and output data takes place.
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Process data are, for instance, setpoints and actual values.
Parameter data
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Parameter data is transmitted via the parameter data channel (PCP channel).
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The transmission of parameter data is usually not time−critical.
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Parameter data are, for instance, operating parameters, motor data and diagnostic
information.
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The access to all Lenze codes and indices is permitted.
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When saving parameter changes, please observe the notes regarding code C0003.
