KROHNE ALTOSONIC V Modbus EN User Manual

Page 52

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ALTOSONIC V

ModBus Manual 0300 rev07 E

7.30855.35.00

Page 52 of 64

Standard volume on output
Status for the corrected/calculated standard conditions of 15 °C and 1 Bar.


Correction parameters HOLD. Due to flow deviation

In case of large flow deviation the correction parameters are ‘frozen’ until enough statistical information

is available to perform a reliable correction.


Overrange data sensor 1…5
This Boolean exists for each ultrasonic channel.
If the flow converter measuring the flow is out of range (±125%) this Boolean is set.


Path failure sensor 1…5

This Boolean exists for each ultrasonic channel.

If the flow converter detects an ultrasonic path failure, this Boolean is set.

Path failure is mostly due to gas, but might be caused by an obstructive solid particle.


Deviation in sound velocity sensor 1…5
This Boolean exists for each ultrasonic channel.

The measurement program calculates the mean sound velocity out of the three most nearby values

and checks all channels on their deviation to this mean value.

If the deviation is too large this Boolean is set.


Communication failure sensor 1…5

This Boolean exists for each ultrasonic channel.

The data transfer with the flow converter is tested with a data validation check, if this test is negative

this Boolean is set.


Real profile sampling on hold

Warning that Real Profile Sampling is on hold due to channel failure (1..5), extreme flow deviations or

low flow.


External Viscosity meter, Temperature external densito meter, Pressure external densito meter,
Temperature external flow meter, Pressure external flow meter out of range

Warning that the specific reading is out of limits (set for low and high alarm).


Acknowledge_flags_field_0

See chapter 7.5 for more information on this Boolean.


General_acknowledge_flags_field_0

See chapter 7.5 to for more information on this Boolean.


Reset All errors
This Boolean can be set to reset/update all errors, occurred under runtime condition.

This Boolean is self-resetting.


Reset Totalisers and All Errors
This Boolean can be set to reset all the totalisers AND to reset/update all errors AND process time,
occurred under runtime condition. (Action is performed if Boolean is set to 1).

This Boolean is self-resetting.


Flow actual /Flow standard / Flow mass

Value for the flow available as scaled integer, scaled long integer, float and double.

The floating-point numbers represent the flow in m

3

/hr or kg/m3, the scaled integers are scaled to the

full-scale value (-

32768 … +32767 -125%… +125%).


Sound velocity
Value for the sound velocity, available as scaled integer, scaled long integer, float and double.

The floating-point numbers represent the sound velocity in m/s, the scaled integers are scaled to

32767 (

scaled 0...32767 0...3276.7 m/s).

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