BERTHOLD TECHNOLOGIES LB 480, User Manual

Page: 301 / 450

SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
3 – 301
Volume 3 1 HART
®
Communication
3
1
HART
®
Communication
The LB 480 can be operated with the following hosts:
• HART
®
Communicator (375/475) by Emerson Process
• Siemens Simatic PDM
• AMS DeltaV by Emerson Process
1.1
HART® Protocol
The measured value in % level is transferred in the process
variable PV.
1.2
General Information on the HART
®
Communicator
IMPORTANT
Changes in the parameters affect the behavior of any connected
controller and can lead to undesirable operating conditions.
Never change the parameter settings without a full knowledge of
this User’s Manual as well as a full knowledge of the behavior of the
connected controller and the possible influence on the operating
process to be controlled.
The measuring system SENSseries LB 480 is compatible with the
HART
®
Communicator Model 375 with firmware 3.0 and the Model
475 (HART
®
Communicator, HART = Highway Addressable Remote
Transducer) by Emerson Process Management GmbH & Co. OHG.
Other HART
®
compatible communicators may also be used, pro-
vided they support Enhancements. The HART
®
Communicator uses
the Bell 202 Frequency Shift Keying technique to superimpose high-
frequency digital communication signals on the standard 420mA
current loop. The minimum load resistance on the 420mA loop has
to be 250 ohms.
Refer to the instruction manual for the HART
®
Communicator for
information on key usage, data entry and equipment interface.