4
OPERATION
20
MFC 400
www.krohne.com
12/2017 - 4006097501 - AD MFC 400 Profinet R01 en
4.9.2 Process Input - Flow
4.9.3 Process Input - Density
4.9.4 Process Input - System Control
ID
Name
Data type
Remarks
2
Flow Direction
Unsigned8
Forwards (default), Backwards
3
Operation Mode
Unsigned8
Stop, Measuring (default), Standby
4
Damping [s]
Float32
Process noise damping for all flow measurements.
5
Low Flow Cut-off (LFC) [%]
Float32
Low flow cut-off threshold for all flow measurements relative
to nominal mass flow rate.
Zero flow will be reported if the actual flow is below this
threshold.
6
Pipe Diameter [mm]
Float32
Pipe diameter for flow speed calculation.
7
Pressure Suppression LFC [%]
Float32
Pressure suppression low flow cut-off threshold relative to
nominal mass flow rate.
8
Pressure Suppression Time [s]
Float32
Pressure suppression time.
Table 4-15: Parameter group - Process Input - Flow
ID
Name
Data type
Remarks
9
Density Mode
Unsigned8
Process (default), Fixed, Referred, Standard
10
Fixed Density
Float32
Density value for density mode "Fixed".
Unit: selected by ID 53
11
Referred Density Temperature
Float32
Reference temperature for density mode "Referred".
Unit: selected by ID 54
12
Referred Density Slope
Float32
Density slope for density mode "Referred".
Table 4-16: Parameter group - Process Input - Density
ID
Name
Data type
Remarks
13
Function
Unsigned8
Off (default), Set Flow to 0.
System control, used in order to set all flow variables to zero if
variable is exceeding min. or max. density/temperature.
14
Variable
Unsigned8
Density, Temperature
15
Min. Density
Float32
Minimum density for variable "Density".
Unit: selected by ID 53
16
Max. Density
Float32
Maximum density for variable "Density".
Unit: selected by ID 53
17
Min. Temperature
Float32
Minimum temperature for variable "Temperature".
Unit: selected by ID 54
18
Max. Temperature
Float32
Maximum temperature for variable "Temperature".
Unit: selected by ID 54
Table 4-17: Parameter group - Process Input - System Control
