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Main points in the definition of a particular controller are:
•
Type of controller to be used, reflecting
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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.
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CPU performance
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Capacity requirements
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Dependability questions like Availability, Integrity
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Need for communication (Need for physical interface).
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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
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Standard type circuits (typical solutions)
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User-defined type circuits
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User-defined circuits
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User-defined PC element.
•
Structuring
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Definition of functional interface to other system
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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.
Summary of Contents for Advant Controller 450
Page 1: ...Advant OCS with Master software GYDQW RQWUROOHU User s Guide 3BSE 002 415R701 Rev A ...
Page 26: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xvi ...
Page 30: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xx ...
Page 488: ... GYDQW RQWUROOHU 8VHU V XLGH SSHQGL DUGZDUH 0RGXOHV A 48 3BSE 002 415R701 Rev A ...
Page 508: ...Advant Controller 450 User s Guide Appendix D Item Designations D 12 3BSE 002 415R701 Rev A ...
Page 518: ...Advant Controller 450 User s Guide Appendix F Load Calculation F 4 3BSE 002 415R701 Rev A ...
Page 522: ...Advant Controller 450 User s Guide Appendix G Memory Calculation G 4 3BSE 002 415R701 Rev A ...
Page 528: ...Advant Controller 450 User s Guide Appendix H Halt Codes H 6 3BSE 002 415R701 Rev A ...
Page 562: ...Advant Controller 450 User s Guide Index iv 3BSE 002 415R701 Rev A ...
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