B 2 Types Of Messages - ABB Freelance 2000 Manual

Section B

B 2 Types of Messages

In the Freelance 2000 system, messages are divided into the following message types ac-
cording to their importance to the process:
System messages
Fault messages
Switch messages
Hint
Hint messages
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System messages have the highest priority level and are subdivided into
3 message groups S1 to S3. Messages of this priority level cannot be
configured or changed by the user. They are used to signal fault states of
the system. For a list of the system messages see Operators Manual,
Operator Station, System messages.
Fault messages have priority levels 1 to 3. Messages of this type are
used to indicate e.g. alarm limit settings being violated.
Switch messages have priority level 4. Messages of this type are used
to indicate switch events, e.g. valve open/closed.
The option exists of configuring a hint for each fault message and switch
message. The configuration of such hints should give the operator the
cause of the message, options for eliminating the process anomaly and if
necessary further hints for operation. Hints appear only in the hint list.
Hint messages have priority level 5. They are contained only in the hint
list and are solely for the operator's information.
Messages and Hints
B-9