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Parameters
Flow volume
Alarm
Error
5.8.7
Silo volume calculation
Function
From the fill level the function block calculates the volume depending on the silo geometry.
The length units at the "Fill height" input and at the three dimension function parameters
must be identical. If, for example, the fill height is specified in meters. the diameter and the
two heights must also be specified in meters (m). In this case, the result is output in cubic
meters (m
As an option two limit values can be programmed for a full or empty message.
Parameters
Parameters
Input parameters
En
Fill height
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
Tag type / range of
values
Analog memory bit
configured as a float-
ing-point number:
3.402823e+38
Digital output / bit
memory
Digital output / bit
memory
).
3
Tag type / range of
values
Analog input / bit
memory
5.8 Counter and summation blocks
Description
Calculated added flow volume (m
reset.
Alarm display
0: Current drainage Q lower than the drainage
•
limit value.
1: Current drainage Q equal to or higher than
•
the drainage limit value.
You can for example use the Alarm to display flood-
ing (incomplete flow) or other evaluations.
Error display:
0: Block processing completed without errors
•
1: Negative height
•
Description
Enable parameter, see section Often used parame-
ters (Page 198).
The value of the input is included in the calculation
of the fill volume.
The fill height must be between 0 and the sum of
the height of the cylindrical section and the height of
the cone-shaped section of the silo. Otherwise the
Error output is set and the result of the calculation
cannot be used.
Make sure you have the same length unit at the
input and in the function parameters.
Programming
) since the last
3
239
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