Page 124 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
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General Operation
changing level, run a complete cycle (from Low Calibration Point to High Calibration Point
and back again) to verify that the relays operate as expected.
Monitor system performance carefully, under all anticipated operating conditions.
1. When the LUT400 performs exactly as required, programming is complete.
2. If alternate reading units, fail-safe action, or relay operation is desired, update the
parameters for the new functionality.
3. If you experience problems with system performance, see
Diagnosing and
Troubleshooting
on page 231.
If you cannot observe all possible operating conditions by varying the material level, use
Simulation process
on page 122 to verify programming.
Retest the system each time you adjust any control parameters.
SITRANS LUT400 Communication Systems
The SITRANS LUT400 is an integrated level controller capable of communicating process
information to a Supervisory Control and Data Acquisition (SCADA) system, via a HART
modem.
LUT400 Communications (HART)
Highway Addressable Remote Transducer, HART, is an industrial protocol that is
superimposed on the 4-20 mA signal. It is an open standard, and full details about HART
can be obtained from the HART Communication Foundation at www.hartcomm.org
SITRANS LUT400 can be configured over the HART network using the HART
Communicator 375/475 by Emerson (see
Operation via Field Communicator 375/475
(FC375/FC475) (HART)
on page 133), or a software package. The recommended software
package is the SIMATIC Process Device Manager (PDM) by Siemens.
HART Version
SITRANS LUT400 conforms to HART rev. 7.2.
SITRANS LUT400
Connection via HART modem.
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