Installation and operating instructions
IFC 020
6/1
Part C Special applications, functional checks,
service, and order numbers
6
Special applications
Power supply unit (and section switch amplifier)
must be set up accordingly if in use for HART
®
operation.
For further information on setting the signal converter refer to chapters 4 and 5.
Settings and operation
Fct.
Parameter
Point-to-point
Multidrop
mode
mode
1.05 FUNCT. I
1 CORRECT.
or
OFF
2 CORRECT.
RANGE I
4-20 mA
or
Any
I
0%
m 4 mA
3.09 COM
HART
HART
ADDRESS
0
01, 02, 03 ..... 15
(use one address at
one time only)
Operation
Current output
Active or passive
Passive only
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
6.1 HART
®
interface
HART
®
-
active
HART
®
-
passive
active passive
to
HART
®
-
communicator
or smart-converter
to
HART
®
- communicator
or smart converter
Ri
≥
250
Ω
power supply unit
to next
HART
®
-
device
