Rockwell-automation 1769-IF16V Compact High Density Analog Input Modul Manuale Utente Scaricare il pdf (Pagina 78)

78 Publication 1769-UM018A-EN-P - October 2008

Glossary

resolution – The smallest detectable change in a measurement,

typically expressed in engineering units (for example, 1 mV) or as a

number of bits. For example a 12-bit system has 4096 possible output

states. It can therefore measure 1 part in 4096.

status word – Contains status information about the channel’s current

configuration and operational state. You can use this information in

your ladder program to determine whether the channel data word is

valid.

step response time – For inputs, this is the time required for the

channel data word signal to reach a specified percentage of its

expected final value, given a large step change in the input signal.

update time – See module update time.

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1769-IF16C, 1769-IF16V 1
Important User Information 2
Table of Contents 3
Chapter 4 4
Module Diagnostics and 4
Troubleshooting 4
About this Publication 7
Who Should Use This 7
Publication 7
Additional Resources 8
Conventions 8
Overview 9
Chapter 1 Overview 10
System Overview 11
Module Operation 11
Installation and Wiring 13
ATTENTION 14
Remove Power 15
Reduce Noise 15
Assemble the Compact I/O 16
Mounting the Module 17
Mount to a Panel 18
Replace a Single Module 19
Within a System 19
Grounding the Module 20
System Wiring Guidelines 21
Label the Terminals 23
Remove the Finger-safe 23
Terminal Block 23
Wire the Finger-safe 23
Wire the Modules 25
Terminal Layout 26
Configuration 29
Input Image 30
Output Image 30
Configuration File 30
Input Data File 31
Time Stamp Value (Word 16) 32
General Status Bits (S0…S15) 32
Low Alarm Flag Bits (L0 …L15) 32
High Alarm Flag Bits (H0…H15) 32
Output Data File 33
Configuration Data File 34
Channel Configuration 38
Enable/Disable Channel (EC) 39
Input Filter Selection 39
Channel Step Response 40
Input Type/Range Selection 41
Input Data Selection Formats 41
Engineering Units 42
Scaled-for-PID 42
Percent Range 42
Real Time Sampling 43
Time Stamping 43
Process Alarms 44
Alarm Deadband 45
Introduction 47
Safety Considerations 47
Power Cycle Diagnostics 48
Channel Diagnostics 49
Non-critical vs. Critical 50
Module Errors 50
Module Error Definition 50
Error Codes 51
Invalid Input Range Selected 55
Invalid Input Filter Selected 55
Invalid Input Format Selected 56
Alarm Not Enabled 56
Invalid Alarm Data 56
Module Inhibit Function 57
Contacting Rockwell 57
Automation 57
Specifications 59
Input Specifications 60
Certifications 61
Replacement Parts 61
I:3.17/2 63
Module Configuration File 64
Configure Analog I/O 64
Modules in a MicroLogix 64
1500 System 64
Appendix 69
Add the Module to Your 69
Profile 70
5. Click OK 70
Configure Each I/O Module 72
Positive Decimal Values 73
Negative Decimal Values 74
Glossary 75
Ideal Transfer 77
Actual Transfer 77
Function 77
Rockwell Automation 84

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