KROHNE IFC 300 Converter HART 0201 - Manual (Page 6)

Supplementary Handbook IFC 300 HART, FC375, AMS, PDM, DTM
3 Inputs/Outputs and HART Dynamic/Transmitter Variables
The IFC 300 is available with a choice of output/input assemblies (see details in the section "I/O assemblies
for the outputs and inputs" of the “Handbook IFC 300 signal converter” (KROHNE)):
The assignment of the I/O terminals (A, B, C and D) to the HART Dynamic Variables (PV, SV, TV and FV)
depends on the device's I/O option:
HART Dynamic Variables:
PV SV TV FV
Basic I/O terminals: A D - -
Modular I/O and
EEx–i I/O terminals:
C D A B
The IFC 300 transmitter handles up to 10 measurement-related HART Transmitter Variables but the sub-set
of available variables depends on the device's I/O option and its configuration:
HART Transmitter
Variable
Code
1
Type Notes
Flow Speed 20 Linear
Volume Flow 21 Linear
Mass Flow 22 Linear
Conductivity 24 Linear
Coil Temperature 23 Linear
Counter 1 (C) 6 Totaliser valid for Basic IO option only
Counter 1 (B) 13 Totaliser valid for Modular I/O and EEx–i I/O options only
Counter 2 (D) 14 Totaliser
Counter 3 (A) 12 Totaliser valid for Modular I/O and EEx–i I/O options only
Diagnosis Value 25 Linear function and validity depend on 'diagnosis value'
setting (Fct. C1.3.17)
1
HART Transmitter Variable Code
To Dynamic Variables which are tied to linear analogue outputs (i.e. current outputs and frequency outputs)
the HART Transmitter Variables are assigned by selecting the 'measurement' (Fct. C2.x.5) for these outputs.
(E.g. when selecting the 'measurement' volume flow for current output A of a device with Basic IO the HART
Transmitter Variable Volume Flow is assigned to the HART Dynamic Variable PV). This implies that only
Transmitter Variables of linear type can be assigned to Dynamic Variables tied to current or frequency
outputs. (A totaliser variable e.g. can't be assigned to PV, the HART current output)
For Dynamic Variables not tied to linear analogue outputs there is no such correlation: Both linear
and totaliser type Transmitter Variables can be assigned (Fct. C4). (Therefore a totaliser variable
e.g. can be assigned to SV, TV and FV unless the respective output is a current or frequency
output.)
HART_Suppl_IFC300_V0201.DOC
04/2007
6/23