Chapter 6, Specifying a new controller – Rockwell Automation AADvance Controller Solutions Handbook User Manual

Page 87

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Document: 553631
(ICSTT-RM447J_EN_P) Issue: 09:

6-1

This chapter provides a list of key information needed to specify a new AADvance
controller. The flowcharts and tables that follow will guide you through the process of

defining a suitable system for your application and requirements.

In This Chapter

Information to Specify a New Controller ..................................................... 6-1

Define a New System ........................................................................................ 6-2
Choosing Termination Assemblies ................................................................. 6-5

Specify I/O Base Units ....................................................................................... 6-5

Estimate AADvance Controller Weight ....................................................... 6-6
Estimate Module Supply Power Dissipation and Field Loop Power

Dissipation ............................................................................................................ 6-7

Information to Specify a New Controller

The following sets of information are needed to specify a new controller:

The intended safety integrity level (SIL2 or SIL3) for your application

The degree of fault tolerance needed

Whether any final elements are energize to action (affects output module

arrangements for SIL3 requirements)

The type and quantity of inputs and outputs

The process safety time for each safety function

All of these items should be assessed and known for the particular plant and the
intended application.

Chapter 6

Specifying a New Controller

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