AppendixC RaPID Control Feature | Omega CN1166 manual

AppendixC

RaPID Control Feature

The RaPID (Response - assisted PID) feature offers dramatic improvements in control quality compared with conventional PID techniques. It responds much more effectively than PID techniques to load conditions. With this feature, the instrument's response at start-up, during setpoint changes and during disturbances shows considerably reduced overshoot and much more shorter settling times (see below).

START-UP

PID

RaPID

DISTURBANCE

PID

RaPID

SETPOINT CHANGES

Setpoint

PIDRaPID

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Omega CN1166 manual AppendixC RaPID Control Feature

Contents

Page Page RAMP/SOAK Profile Volume Installation & Configuration Instructions Volume Operating Instructions Contents Unpacking Procedure PANEL-MOUNTING the Controller Connections and Wiring Rear Terminal Connections Mains Line Input 2 24V Nominal AC/DC SupplyThermocouple Input RTD Inputs Linear Inputs Remote Run/Hold InputRelay Outputs SSR Drive Outputs DC Outputs 11 RS485 Serial Communications Link Internal Links and Switches Removing the Profile Controller from ITS Housing Removing the Output 2/Output 3 Option PCBs Replacing the Instrument in ITS Housing REMOVING/REPLACING the Output 2/OUTPUT 3 Option PCBs Selection of Input Type and Output 1 Type Input Type Primary Output Output 1 Type CPU PCB Relay/SSR Drive/Solid State Output Output 2 TYPE/OUTPUT 3 Type Entry Into Configuration Mode Hardware Definition Code Configurat ion Mode Wit h Hardw are Definit ion Code displayed Option Selection Hardware Definition Code Input/Output Type Selection Configuration Mode Parameters Wit h Hardw are Definit ion Code displayed Parameter AL1 OFF, AL2 OFF Parameter Page Exit from Configuration Mode Base Mode Controller SET-UP Mode Program Definition Mode CREATING/EDITING a ProgramModbus Communications Alphabetic Index Base Mode Display Sequence no Program Running Starting a Program Putting a Program in HoldReleasing a Program from Hold Aborting a Program Display Sequence Program Running Read Only whilst Program is running/held RaPID Control Feature PRE-TUNE Feature Engaging Both PRE-TUNE and RaPID Features Indication of PRE-TUNE and RaPID Status RaPID Status when Viewing the Hardware Definition Code Hardware Definition Code has the following significance Manual Control Press till front panel shows Press or to change display to Controller SET-UP Mode Lower display = Parameter Function Adjustment Range Default Value Parameter Details ON/OFF Parameter Function Adjustment Range Default Value Power Alarm Operation Deviation Exit from Controller SET-UP Mode When this display shows Program Definition Mode CREATING/EDITING a Program Entry Creating a Program Basic Guidelines Defining Segments Rate Mode To make a Soak segment Defining Segments Time Mode Program Options Guaranteed Soak Band T p o i n t Segment Event Status Press key To display Default Values and Adjustment Ranges Exit from Program Define Mode Message Formats IntroductionModbus Functions Supported Read Coil Status Read n Bits 01/02 CRC16 Read Holding Registers Read n Words 03/04 Force Single Coil Write 1 Bit Preset Multiple Registers Write n Words 16 B Preset Single Register Write 1 Word 06 BLoopback Diagnostic Test Error and Exception Responses CRC16 Calculation Reversed BIT Order Used Parameter Numbers Bit Parameters Controller Status Byte Word Parameters Controller Parameters Instrument ID Parameters Volume O077-4 Profiler Commands Profiler Status Byte Universal Input General Input Range Remote RUN/HOLD Input Option Output RelaySSR Drive/TTL Solid State Types Available Relay, SSR drive, solid state and DC Solid State SSR Drive/TTL Alarm Control Loop Control Performance Under Reference Conditions PerformanceReference Conditions S077-A Volume Physical EnvironmentalSee Performance Appendix B Summary of Displays Program Define Mode Parameters Configuration Mode Parameters AppendixC RaPID Control Feature AT OFF Alphabetical Index S077-IDX Volume Making a Soak Segment S077-IDX Volume Unpacking Procedure Word Parameters II/4-8