User Manual Instruction Manual

3 Publication 1746-UM009B-EN-P - September 2007
Table of Contents
Preface
About This Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . 5
Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 1
Quick Start
Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . 7
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 2
Install and Wire the Modules
Determine the Module’s Power Requirements . . . . . . . . . . . 11
Determine Compatibility with Other I/O Modules. . . . . . . . . 12
Configure Input Channels . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Select the I/O Rack Slot. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Install the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Considerations When Wiring . . . . . . . . . . . . . . . . . . . . . . . . 16
Minimize Electrical Noise Interference . . . . . . . . . . . . . . . . . 18
Wire the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Minimize Ground Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Label the Terminal Block. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 3
Access Files to Configure I/O
Click and Drag Configuration . . . . . . . . . . . . . . . . . . . . . . . 23
Read IO Config Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 4
Processor and Module
Considerations
Processor Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Module Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Chapter 5
Write Ladder Logic
Retentive and Non-retentive Programming . . . . . . . . . . . . . . 39
Detect an Out-of-range Input. . . . . . . . . . . . . . . . . . . . . . . . 41
Overview of Scaling Inputs and Outputs . . . . . . . . . . . . . . . 42
Scale an Analog Input and Detect an Out-of-range Condition 44
Scale an Analog Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Scale Offsets When >32,767 or <32,768. . . . . . . . . . . . . . . . 49
Range-check an Analog Input and Scale It for an Output . . . 52
PID Control with Analog I/O Scaling . . . . . . . . . . . . . . . . . . 56