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