BERTHOLD TECHNOLOGIES LB 480, Руководство пользователя

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SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
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Volume 3 8 Error Handling
3
8
Error Handling
Errors are indicated by the digital output and/or via fault current.
Error messages are displayed on the HART
®
Communicator. All
error messages are stored in the error log together with date and
time. To view the error log, select
Device Config

Diagnostic

Log

Error Log .
8.1
Error Handling Modes
The behavior in case of errors is dependent on the weighting set in
Error Handling (
Device Config

Setup

Signal Condition

Signal Parameter , chapter 2.16 , page 3-329 ): NORMAL or
SENSITIVE .
Both operation modes behave as follows:
• SENSITIVE
All faults cause the current output to report a Fault current . To
also get warning messages, you must also evaluate the mes-
sages via the HART
®
signal or the digital output.
The setting SENSITIVE is automatically enabled when the
Safety Mode is selected.
• NORMAL
Only fatal errors are reported as a fault current. Thus, the mea-
sured value via the current signal will fail only if the measure-
ment can no longer be used.
To also get minor error and warning messages, you must also
evaluate the messages via the HART
®
signal or the digital out-
put.
IMPORTANT
You may select the NORMAL setting only if hazards to persons or
damage to property a as a result of a faulty measured value can be
ruled out.
Select SENSITIVE if system safety is an important issue. Use
NORMAL if a failure of the measurement is non-critical for human
health and the environment and production safety is an important
issue.
To use the digital output for the above mentioned messages, you
need to use the setting
W ERROR on the menu Digital
Out Function ( Device Config

Setup

I/O Setup

Digital
Output

Digital Out Function , see chapter 2.30 , page 3-357 ).