Rockwell-automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual de usuario descargar pdf (Pagina 31)

Publication 1785-UM024B-EN-P - January 2003

Installing and Configuring Your ControlNet PLC-5 Backup System 3-5

The Connection Properties dialog box appears.

The To Node field is already filled in for you. This number

indicates the node number from which you will receive the

Consume Buffer ID scheduled message. In your ControlNet

backup system, the odd-numbered node will receive the

message from the even node, and vice versa.

2. Double click under the Value field to select the message number

you wish to assign to identify this message.

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 139 140

ControlNet PLC-5 1
Hot Backup System 1
Important User Information 2
Rockwell Automation 3
Manual Objectives 5
Who Should Use This 5
What This Manual Contains 6
Terms and Conventions 6
Related PLC-5 Publications 7
Related ControlNet 7
Publications 7
Preface 4 8
Summary of Changes 9
Summary of Changes 2 10
Table of Contents 11
Table of Contents iv 12
Table of Contents v 13
Table of Contents vi 14
Basic System Architecture 16
How the Backup System 16
Qualification 17
Equivalence Checking 18
Bumpless Transfer 18
Switchover 19
Backup System Components 21
Software Components 22
Firmware Components 22
Compatibility Considerations 23
Summary of Required 24
Hardware, Firmware and 24
Software 24
ControlNet Backup 25
Cartridge 25
PLC-5 Backup System 27
Configuring Your Backup 28
Advanced Configuration 44
Equivalence Checks 47
Crossloading 48
System Status 49
Diagnostic Counters 49
Qualification Error Reason 49
Invalid State Reason 50
Maximum Pscan Information 50
Requalification of Dual 52
Primary Processors 52
PLC-5 Editing 52
Considerations 52
Downloading Editing Changes 53
Testing Data Table Edits 53
Considerations when Using 55
Redundant Connections 56
ControlNet I/O Instructions 59
Data Written by the HMI 62
Checking ControlNet Resources 63
Backup-Specific Major 66
Fault Error Codes 66
Using the 1785-CHBM 67
Cartridge Status Indicators 67
Troubleshooting the Invalid 68
Backup State 68
Troubleshooting 70
Qualification Major Faults 70
Troubleshooting with 71
Output Ownership 71
Verification 71
Configuration and Status 72
IMPORTANT 77
Specifications 79
A-2 Specifications 80
Backup States 81
Invalid Backup State 82
No Control Backup State 83
Primary Backup State 84
Lonely Primary Backup State 85
Secondary Backup State 85
Backup State Transitions 86
• Connection delay 87
• Equivalence checks 88
• I/O Force Table values 89
B-10 Backup States 90
Backup States B-11 91
• Transition to Run mode 92
• State data table crossload 92
Backup States B-13 93
Qualified Switchovers 95
Unqualified Switchovers 96
Backup States B-17 97
B-18 Backup States 98
Data Table Crossloading 99
• Timer Accumulators 101
• Counter Accumulators 101
• PD Files 102
• User-Selectable Files 102
Qualification Crossloads 104
Data Table Crossload Time 106
Program Synchronization 109
Determining Which Mode to Use 110
Using Synchronous Mode 110
Program Scan Overrun 111
Application Guidelines 113
Switchover Considerations 114
Inhibiting or Resetting 117
ControlNet I/O 117
Sequential Process 117
Application Considerations 117
Same Process State 120
Different Process States 120
Appendix 123
Chapter Objectives 123
Comparison to the BCM 123
Glossary 125
Numerics 133
2 Index 134
Index 3 135
4 Index 136
How Are We Doing? 137
BUSINESS REPLY MAIL 138

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Rockwell-automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual de usuario Pagina 31

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