ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Chapter 5 Maintenance
5-8 3BSE 002 415R701 Rev A
Central Operator Station
If the controller is included in a control network with a central operator station type
Advant Station 500 Series Operator Station or MasterView 800/1, the following facilities apply.
•System messages:
– In plain language (edited mix for process operators).
It is possible to direct all messages intended for an engineering station and system
maintenance personnel also to an operator station. However, normally a limited
information flow in plain language is desirable.
– Give information about probable cause of malfunction.
See Section 5.5.2.1, System Status and Plain Language System Messages
• System status displays:
– Showing fatal and non-fatal error in the total controller function and in individual
functions/units as well.
In many cases the system status function points out the faulty replaceable unit.
Please find information of such possibilities in Section 5.5.2.1, System Status and
Plain Language System Messages.
Process Control
Certain controller faults, for example those related to process I/O board channels, will probably
be detected indirectly when a control function goes wrong. For most I/O board types, there is
limited or no system diagnostics support on channel level.
A tank can indicate high level because of an error in the current output stage to a control valve.
An oil flow can indicate low value because of a lost measured value which in turn is caused by
an input amplifier fault, and so on.
To minimize the down-time, it is important in such cases that the operator have a good overview
and knowledge of the plant functions.
It is also essential that the control system design, in addition to the normal control functions,
include supervision of important process objects and their system inputs and outputs as well.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English