KROHNE FC 300 Converter PROFIBUS PA-DP - Manual (Page 22)

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PROFIBUS PA
22
IFC 300
www.krohne.com 02/2011 - 4001086601 - AD IFC 300 PROFIBUS R01 en
Both, the Byte SetTot and ModeTot are cyclically sent from the Master to the device if these bytes
are inserted as output data via the PLC configurator. The meaning of these control bytes are as
follows:
Function of control bytes
All other values of ModeTot not allowed. Value is ignored; totalizer remains in its last valid
setting.
The standard block configuration may be changed by the customer but using the default settings
is highly recommended. If the standard block configuration should be changed by the customer
an acyclic master tool or the device display menu must be used to change the "channel
parameter" value of the block which should be connected to another transducer output value.
3.5.4 Profile specific GSD file: PA139740.GSD
The functionality of the profile specific GSD file is limited. This GSD file includes only two blocks:
The device has to be switched from full functionality to interchangeable basic configuration by
using one of both a master class 2 tool (IDENT_NUMBER_SELECTOR: Slot 0, Index 40; change
byte value to 0) or the device display menu. In the next step, the device has to be configured using
the PA039740.GSD file.
SetTot SetTot SetTot SetTot
SetTot = 0 Totalizer is totalizing.
SetTot = 1 Totalizer will be reset to 0 and stays at 0 until SetTot is switched back
again to 0. If the value of SetTot changes from "1" to "0" the totalizer
starts counting from 0.
SetTot = 2 Totalizer is set to the value defined by PresetTot. PresetTot can be
written via an acyclic master (totalizer in block 2 = Slot 2 Index 32;
totalizer in block 3 = Slot 3 Index 32; totalizer in block 4 = Slot 4 Index
32). If the value of SetTot changes from "2" to "0" the totalizer starts
counting from the current value defined by PresetTot.
SetTot > 2 Not allowed. Value is ignored; totalizer remains in its last valid
setting.
ModeTot ModeTot ModeTot ModeTot
ModeTot = 0 Totalizer totalizes positive and negative values.
ModeTot = 1 Totalizes only positive values.
ModeTot = 2 Totalizes only negative values.
ModeTot = 3 Totalizer is stopped, no totalization will be done.
ModeTot = 248 Totalizes all values as positive, negative values will be multiplied with
-1.0.
ModeTot = 249 Totalizes all values as negative, positive values will be multiplied with
-1.0.
Block
number Standard configuration
Function block output value PA139740.GSD
Ident-No. 9740 Default
unit
1 Volume Flow AI-FB m 3 /h
2 Volume Totalizer Totalizer-FB
m 3