HBM PX401, Operating Manual

Page: 534 / 552

FAQs
534
A4354-2.2 HBM: public
PMX
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How many calculation channels are available?
There are always 32 calculation channels available in
the basic device for each PMX. This allows a wide
variety of regulation and control tasks to be processed
in the PMX using anything from peak-value calculation
to PID control, and relieves the burden on
downstream systems and PLCs.
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How high are sampling and calculating rates in the
PMX?
All channels, measurement channels and calculation
channels are sampled and processed at 19,200 Hz or
38,400 Hz in the PX460. This means that extremely
fast measurement data processing and automation
are possible. The measuring bandwidths can be taken
from the specifications of the individual measurement
cards.
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Is the time for the measured value time stamp
stopped after a power failure?
No, the time stamp starts at zero again after a new
start.
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How high is the resolution and accuracy of the PMX?
The measurement channels have 24 bit resolution.
This allows even very small signals in the partial-load
range to be measured accurately and reliably. The
accuracy class is max. 0.05%.
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Can the channels of adjacent PMX devices be offset?
No. Only the measurement and calculation channels
of the individual PMX can be processed, not those of
the other connected devices.
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How many parameter sets / measurement programs
does the PMX have and how high are the switching
times?
A maximum of 1,000 parameter sets can be used in
the PMX. These are divided into 4 sub-parameter sets
which can be switched separately.