Endress+Hauser Liquiline System CA80HA, Operating Instructions Manual

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Liquiline System CA80HA Diagnostics and troubleshooting
Hauser 149
A diagnostic module has the following properties:
• The feed source can be configured like a binary output (relay, digital output).
• You can choose whether the diagnostic message should be output at a high level or low
level.
• You decide which error category (Namur class) should be assigned to the message.
• You can define a customized text to be output as the diagnostic message text.
In addition you can switch off the factory diagnostic code for limit switches. This allows you
to:
• Use the limit switch on a purely functional basis (without a message)
• Configure application-specific message texts
• Control diagnostic modules directly by a digital signal or via a limit switch output (enables
the use of switch-on/switch-off delay, for example).
Menu/Setup/Additional functions/Diagnostic modules
Function Options Info
Diagnostic module 1 (961) ... 8
(968)
Source of data Selection
• None
• Fieldbus signals
• Binary inputs
• Limit switches
Factory setting
None
Specify the input which should be the source of
data for the diagnostic message.
Measured value Selection
depend on Source of data
Factory setting
None
Specify the measured value that should trigger
the diagnostic message.
You can use different measured values
depending on the data source.
Active low Selection
• Off
• On
Factory setting
On
On : The output value is equal to the inverse
output value.
Short text Free text Give the diagnostic message a name.
Diagnostic module
assignment view
Shows an overview of the diagnostic modules
used.
11 Diagnostics and troubleshooting
11.1 General troubleshooting
The analyzer continuously monitors its functions itself.