Delphin ProfiMessage, Руководство по оборудованию

Страница: 143 / 322

Profi Message
l
The minimum is the smallest value within the data series.
l
The maximum is the greatest value within the data series.
l
The variance is the mean square error relative to the mean.
l
The number of measurement values are values in the block interval.
l
The standard deviation is the square root of the variance (not the average
deviation!).
l
The True RMS is the root from the sum of the squares of the values by the
number of values.
l
The arithmetic mean, also called the average, is the sum of all values of a
data series divided by the number of values.
l
The geometric mean is the Nth root from the product of n values.
l
The harmonic mean is the reciprocal from an average of reciprocals.
4.7.21 Status filter
The function allows certain status messages to be suppressed and another output
to be controlled. You can pass on all status messages to a digitial output to be
informed of problems, but relay only certain messages to a second digitial output,
such as the actions of switching off machines etc.
Refer to
Status monitoring , Status generator .
Available alarm functions and their meaning
Selection Description
Alarm No function currently available
Wire break Wire break in monitored channel
Configuration error Error in monitored channel configuration
Invalid value Invalid value in monitored channel
Measuring range
overrun The measured value is above the A/D converter
measuring range
Measuring range
underrun The measured value is below the A/D converter
measuring range
Hardware error Error in the hardware
Simulated value
An internally generated value for testing, for
example from the PROFIBUS
No number (NAN =
Not A Number) A calculation has not returned a valid number, for
example root of negative numbers
Infinite value
A calculation is infinite, for example division by
zero
143
Delphin Technology AG
Dezember 2015
Profi Message Manual