ABB Advant Controller 450 User Manual

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3BSE 002 415R701 Rev A 3-73
Main points in the definition of a particular controller are:
• Type of controller to be used, reflecting
– Security questions such as Hazardous applications, Emergency situations, Abnormal
operating situations, Consequences in the event of a failure, Behavior at start/stop,
Behavior at maintenance, Manual control.
– CPU performance
– Capacity requirements
– Dependability questions like Availability, Integrity
– Need for communication (Need for physical interface).
• Type of I/O system
Centralized or distributed location of I/O is normally determined at prior and superior
design stages reflecting such questions as Maintenance, Environment, Economy (cable
savings).
• I/O board assortment. Limitation in number of different types is often desirable.
• Physical interface to the process. Terminal blocks, Marshalling, Hazardous applications.
• Application of redundancy.
• Environmental questions. Special requirement of cabinetry.
• Mechanical design. Cabinet lay-out.
When the design work reaches this stage, the hardware and the system software for the
controller have been determined. Sufficient information should also be available to permit a
controller system configuration. The information should include a rough estimation of
application functions needed thus facilitating a dimensioning and disposition of the RAM.
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The next step is to make a detailed function identification and to design the application program
based on AMPL. Finally, you implement the program.
To sum up, the main activities are:
• Circuit identification with respect to
– Standard type circuits (typical solutions)
– User-defined type circuits
– User-defined circuits
– User-defined PC element.
• Structuring
• Definition of functional interface to other system
• Execution control work-through
• Design of start-up program which include securing of application dynamic data during
power supply disconnection
• Configuration/Implementation
This is mostly an interactive session using an engineering station.
Some of these activities, subactivities and other similar subjects of interest are dealt with below.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English