Rockwell Automation Allen-Bradley Logix5000 Betriebsanleitung

Programming Manual

Catalog Numbers

1756 ControlLogix,

1768 CompactLogix, 1769 CompactLogix,

1789 SoftLogix, 1794 FlexLogix,

PowerFlex 700S with DriveLogix

Logix5000 Controllers Controller

Major and Minor Faults

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the

Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales

office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-

wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all

persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or

application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements

associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the

examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in

this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

Allen-Bradley, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

WARNING Identifies information about practices or circumstances that can cause an explosion in a

hazardous environment, which may lead to personal injury or death, property damage, or

economic loss.

IMPORTANT Identifies information that is critical for successful application and understanding of the product.

ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death,

property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and

recognize the consequence

SHOCK HAZARD Labels may be on or inside the equipment, for example, a drive or motor, to alert people that

dangerous voltage may be present.

BURN HAZARD Labels may be on or inside the equipment, for example, a drive or motor, to alert people that

surfaces may reach dangerous temperatures.

3Publication 1756-PM014B-EN-P - July 2008 3

Summary of Changes

Introduction

The release of this document contains new and updated information. To find

new and updated information, look for change bars, as shown next to this

paragraph.

Updated Information

This document contains the following changes.

Topic Page

Updated major fault codes Chapter 2

4Publication 1756-PM014B-EN-P - July 2008

Summary of Changes

Notes:

5Publication 1756-PM014B-EN-P - July 2008 5

Table of Contents

Preface

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

How to Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 1

Monitor Minor Faults

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Minor Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 2

Handle a Major Fault

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Choose Where to Place the Fault Routine . . . . . . . . . . . . . . . . . . . 15

Create a Fault Routine for a Program . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Create the Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Assign the Routine as the Fault Routine . . . . . . . . . . . . . . . . . . . . 16

Create a Routine for the Controller Fault Handler. . . . . . . . . . . . . . . . 17

Create a Routine for the Power-Up Handler . . . . . . . . . . . . . . . . . . . . 17

Programmatically Clear a Major Fault. . . . . . . . . . . . . . . . . . . . . . . . . . 18

Create a Data Type to Store Fault Information . . . . . . . . . . . . . . . 18

Get the Fault Type and Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Check for a Specific Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Clear the Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Clear a Major Fault During Prescan . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Identify When the Controller is in Prescan . . . . . . . . . . . . . . . . . . 21

Get the Fault Type and Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Check for a Specific Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Clear the Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Test a Fault Routine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Create a User-Defined Major Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Create a Fault Routine for the Program . . . . . . . . . . . . . . . . . . . . . 25

Configure the Program to Use the Fault Routine . . . . . . . . . . . . . 25

Jump to the Fault Routine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Major Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6Publication 1756-PM014B-EN-P - July 2008

Table of Contents

7Publication 1756-PM014B-EN-P - July 2008 7

Preface

Purpose of this Manual

This manual shows how to monitor and handle major and minor controller

faults. This manual is one of a set of related manuals that show common

procedures for programming and operating Logix5000 controllers. For a

complete list of common procedures manuals, see the Logix 5000 Controllers

Common Procedures Programming Manual, publication 1756-PM001.

The term Logix5000 controller refers to any controller that is based on the

Logix5000 operating system, such as:

·CompactLogix controllers

·ControlLogix controllers

·DriveLogix controllers

·FlexLogix controllers

·SoftLogix5800 controllers

How to Use this Manual

Some text is formatted differently from the rest of the text.

Text that is Identifies For example Means

Italic the actual name of an item that you

see on your screen or in an example Right-click User-Defined … Right-click the item that is named

User-Defined.

courier information that you must supply

based on your application (a

variable)

Right-click

name_of_program …You must identify the specific program in

your application. Typically, it is a name or

variable that you have defined.

enclosed in brackets a keyboard key Press [Enter]. Press the Enter key.

8Publication 1756-PM014B-EN-P - July 2008

Summary of Changes Preface

Notes:

9Publication 1756-PM014B-EN-P - July 2008 9

Chapter

Monitor Minor Faults

Introduction

To use relay ladder logic to capture information about a minor fault:

To check for a Do this

Periodic task overlap 1. Enter a GSV instructions that gets the FAULTLOG object, MinorFaultBits attribute.

2. Monitor bit 6.

Load from nonvolatile

memory 1. Enter a GSV instructions that gets the FAULTLOG object, MinorFaultBits attribute.

2. Monitor bit 7.

Problem with the serial port 1. Enter a GSV instructions that gets the FAULTLOG object, MinorFaultBits attribute.

2. Monitor bit 9.

Low battery 1. Enter a GSV instructions that gets the FAULTLOG object, MinorFaultBits attribute.

2. Monitor bit 10.

Problem with an instruction 1. Create a user-defined data type that stores the fault information. Name the data type FaultRecord and

assign these members:

Name: Data Type: Style:

TimeLow DINT Decimal

TimeHigh DINT Decimal

Type INT Decimal

Code INT Decimal

Info DINT[8] Hex

2. Create a tag that will store the values of the MinorFaultRecord attribute. Select the data type from

step 1.

3. Monitor S:MINOR.

4. If S:MINOR is on, use a GSV instruction to get the values of the MinorFaultRecord attribute.

5. If you want to detect a minor fault that is caused by another instruction, reset S:MINOR. (S:MINOR

remains set until the end of the scan.)

10 Publication 1756-PM014B-EN-P - July 2008

Chapter 1 Monitor Minor Faults

This example checks for a low battery warning.

EXAMPLE Check for a minor fault

Minor_fault_check times for 1 minute (60000 ms) and then automatically restarts itself.

Every minute, minor_fault_check.DN turns on for one scan. When this occurs, the GSV instruction gets the value of the

FAULTLOG object, MinorFaultBits attribute, and stores it in the minor_fault_bits tag. Because the GSV instruction only

executes once every minute, the scan time of most scans is reduced.

If minor_fault_bits.10 is on, then the battery is low.

42373

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