User Manual

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
I0% 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
R
i
≥ 250 Ω
power supply unit
to next
HART
®
-device