Siemens SITRANS P DS III Operating Instructions Manual page 113

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● To acquire an amount that has flowed (mass or volume), use the totalizer function block.
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● If your desired configuration does not include the mode settings (reset totalizer or mode),
set the following parameters as well with SIMATIC PDM:
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Application point of the root function, creep quantity suppression
If you want to suppress the error that occurs at low flow quantities, you have two options that
you can also combine:
● The application point of the root function determines the point below which the root
function becomes linear.
● Creep quantity suppression sets the measured flow quantity to 0, when the value falls
below the preset limit.
Enter the application point as a % of the operating range (volume flow).
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08
Channel:
> > Measured value scaling
Start-of-scale value:
Final value:
> > Output scaling
Unit:
Start value:
Final value:
Output
> Totalizer function block
Channel:
Unit (totalizer)
Output
> Totalizer function block
> > Operating mode
Operating mode:
Totalizer output:
Operator control functions via PROFIBUS
Measurement value (primary variable)
as in "working range"
as in "working range"
as in "working range"
as in "working range"
as in "working range"
Measurement value (primary variable)
[Pos. and neg. values | only positive values]
Count
7.4 Settings
113