Description optek Control 4000 / Haze Control bus interface
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optek-Manual--1004-1010-02--ProfibusPA-US-2017-06-23
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Description optek Control 4000 / Haze Control bus
interface
To allow the easiest possible commissioning of the C4000 converter and the
Haze Control at the bus, the reliable concept of parameterization via parameter
sets was maintained in great parts. Up to eight parameter sets each can be
stored on the converter with a product number with product name for that
purpose.
For comfortable handling even of complex parameter sets (e. g. complex
mathematical operations), the well-known PC-Transfer Advanced software is
used for the Control 4000.
Thus, almost all internal parameters can be changed when changing the product
number. The product number can be changed locally or via access to an
individual register via bus.
Even complex parameter changes, such as the exchange of the mathematical
operations of several input signals or the exchange of the linearization function
for a simple operation in the control system, are therefore possible. It is not
necessary to reboot the converter or bus segment.
The structure with up to four independent definable measuring results to each of
which a name and a text for designating the unit can be assigned was adapted
as well.
The four measuring results also play a central role for mapping on the bus: To
each of these measuring results, a transducer block and an analog function
block are assigned according to the PROFIBUS
®
PA profile specification.
Therefore, in cyclic data traffic, these four measuring results can be read,
together with the corresponding status information.
For each measuring result, apart from the limit values without bus connection,
there are four additional limit values in the cyclically transferred status
information. There, the information regarding quality of the measuring result with
respect to malfunctions of the converter or bus interface is provided as well.
The four status are mapped on the four evaluation levels
• good
• uncertain
• local override and
• bad
according to the condensed status.