KROHNE IFC 020 K Installation And Operating Instructions Manual page 44

Part C Special applications, functional checks,
service, and order numbers
6 Special applications
6 .1
HART interface
®
The HART interface is a smart interface, in other words a communication signal superimposed on
the current output. All functions and parameters can be accessed via this interface.
The following HART features are supported:
• point-to-point connection
• multidrop (up to 15 HART devices)
The burst mode is not normally used. Further information about HART is available from the HART
Communication Foundation, of which Krohne is a member.
Electrical connection
®
HART -
active
active
HART
to
or smart-converter
R i ≥ 250 Ω
Power supply unit (and section switch amplifier)
must be set up accordingly if in use for HART
Settings and operation
Fct. Parameter
1.05 FUNCT. I
RANGE I
3.09 COM
ADDRESS
Operation
Current output
For further information on setting the signal converter refer to chapters 4 and 5.
6/1
®
-
communicator
Point-to-point
mode
1 CORRECT. or
2 CORRECT.
4-20 mA or
I m 4 mA
0%
HART
0
Active or passive
Installation and operating instructions IFC 020
®
HART -
passive
operation.
®
Multidrop
mode
OFF
Any
HART
01, 02, 03 ..... 15
(use one address at
one time only)
Passive only
passive
to next
®
HART -
device
power supply unit
®
HART
to - communicator
or smart converter