ABB Advant Controller 450 User Manual

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From the maintenance viewpoint, use as few module types as possible in the hardware
disposition of a control system. This is most relevant with the process I/O design.
Standardization of I/O signal types and other electrical qualities is important to minimize the
spare part stock.
If possible, do not use “smart programming” when you make an application program.
Your solutions must make sense to the maintenance people in the event of disturbances and
following trouble-shooting.
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You can connect a new Advant Controller 450 to an existing control network
(MasterBus 300) without affecting other stations and controllers. The new controller is
automatically incorporated in the communication system.
You can expand the controller step by step, that is the system can be enlarged and made more
complex in different ways. Examples of such areas are:
• Process I/O
• Communication with external computers and other systems
• Operator functions
• Application program
• Redundancy.
Of course, there are some limitations such as maximum number of possible instances and
functionality offered by the available library. You can, however, exchange program modules if
certain optional functions are required.
For limitations, see Section 3.2, Technical Data Including Capacity & Performance.
If desirable, you can carry out most expansions and operations on-line.
Some preparations are necessary when you are dimensioning the system since the dimensioning
commands DIMDB and DIMPC are only available off-line. Practically, this is not a problem.
A number of spare instances in the database and spare PC program structures should always be
defined for future limited expansions.
Extensive reconfiguration and enlargement of the system is normally linked to revamping the
plant. Shut-down of the system and off-line work is then advisable.
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In addition to what is said above regarding spare instances in the data base and spare space for
additional application programs, there is a simple rule of thumb for the hardware design:
You can add new I/O modules on-line. It is practical to have approximately 10% to 20% of the
channels spare. The same recommendation is valid for spare space in subracks.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English