Spectrum Controls 1771sc-IFE32 - Manual (Page 9)

Contents
Preface ................................................................................................................................................................ v
Important User Information ............................................................................................................................ v
Using This Manual ........................................................................................................................................... v
Chapter 1 Overview of the Analog Input Module ...................................................................................... 1
Module Description ............................................................................................................................................................... 1
Features ................................................................................................................................................................................. 1
Program Selectable Input Ranges .......................................................................................................................................... 2
How Analog Modules Communicate with Programmable Controllers ................................................................................... 2
Accuracy ............................................................................................................................................................................... 3
Chapter Summary ................................................................................................................................................................... 3
Chapter 2 Installing the Input Module ........................................................................................................ 5
Power Requirements: ............................................................................................................................................................. 6
Locating the Module in the I/O Chassis ................................................................................................................................ 7
Key the Backplane Connector ............................................................................................................................................... 7
Wiring Your Analog Module .................................................................................................................................................. 7
To minimize ground-loop currents on input circuits: ............................................................................................................. 8
Cable Lengths ........................................................................................................................................................................ 8
Grounding ............................................................................................................................................................................ 11
Indicator Lights: ................................................................................................................................................................... 11
Chapter Summary ................................................................................................................................................................. 12
Chapter 3 Module Programming ................................................................................................................ 1 3
Block Transfer Programming ................................................................................................................................................ 13
Module Scan Time ............................................................................................................................................................... 15
Chapter Summary ................................................................................................................................................................. 15
Chapter 4 Configuring Your Module ..........................................................................................................1 7
Configuring your input module: ........................................................................................................................................... 17
Block Transfer Write (BTW) Maps ...................................................................................................................................... 17
Configuration Word ............................................................................................................................................................. 18
Input Range Selection .......................................................................................................................................................... 18
Data Format: ......................................................................................................................................................................... 20
Digital Filtering: .................................................................................................................................................................... 20
Automatic System Calibration ............................................................................................................................................. 21
(Autocal) .............................................................................................................................................................................. 21
Debug Flags ......................................................................................................................................................................... 21
Real Time Sampling: ............................................................................................................................................................. 23
Scale Word Configuration Bits ............................................................................................................................................ 25
Default Configuration: ......................................................................................................................................................... 25
Chapter Summary ................................................................................................................................................................. 26
Chapter 5 Module Status and Input Data ................................................................................................. 2 7
Reading Data from Your Module ......................................................................................................................................... 27
Block Transfer Read (BTR) Maps ........................................................................................................................................ 27
Module Data BTR ................................................................................................................................................................ 27
Module Data/Configuration Echo BTR ................................................................................................................................ 28