Rockwell Automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual - Manual (Page 12)

Publication 1785-UM024B-EN-P - January 2003
Table of Contents iv
Advanced Configuration Options . . . . . . . . . . . . . . . . . . . . 3-18
Configuring Optional Parameters in a Backup System . . 3-19
Synchronous and Asynchronous Program Scanning . . . . 3-20
Equivalence Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Crossloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Crossloading Over Data Highway Plus . . . . . . . . . . . . . 3-24
Requalification of Dual Primary Processors. . . . . . . . . . . . . 3-26
PLC-5 Editing Considerations . . . . . . . . . . . . . . . . . . . . . . . 3-26
Downloading Editing Changes . . . . . . . . . . . . . . . . . . . 3-27
Testing Data Table Edits. . . . . . . . . . . . . . . . . . . . . . . . 3-27
Using I/O in Your ControlNet Hot
Backup System Chapter 4
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Considerations when Using I/O . . . . . . . . . . . . . . . . . . . . . 4-1
Redundant Connections . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Monitoring and
Troubleshooting Your
ControlNet PLC-5 Hot Backup
System Chapter 5
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
ControlNet PLC-5 Backup-Specific Major Fault Error Codes . 5-2
Using the 1785-CHBM Cartridge Status Indicators . . . . . . . . 5-3
Troubleshooting the Invalid Backup State . . . . . . . . . . . . . 5-4
Troubleshooting Qualification Major Faults . . . . . . . . . . . . 5-6
Troubleshooting Qualification Crossloads. . . . . . . . . . . . . . 5-7
Troubleshooting with Output Ownership Verification . . . . . 5-8
ControlNet Backup Configuration and Status File . . . . . . . . 5-8
Specifications Appendix A
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Backup States Appendix B
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Invalid Backup State . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
No Control Backup State . . . . . . . . . . . . . . . . . . . . . . . B-3
Primary Backup State . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Lonely Primary Backup State . . . . . . . . . . . . . . . . . . . . B-5
Secondary Backup State . . . . . . . . . . . . . . . . . . . . . . . . B-5
Backup State Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6