Allen-Bradley 1756-CNB User Manual page 127

Action
Store a Project
Load a Project—User Initiated
Load a Project—On Power Up
Load a Project—On Corrupt Memory
In a redundant system, store or load a project only while the
secondary chassis is disqualified. To store or load a project, perform
these procedures.
Storing or Loading Projects
Details
Important: If your computer is online with the controller over a ControlNet network, check the
CPU usage of the CNB module. The CPU usage module must be less than about 75% for the store
to work.
1. Put the primary controller in program mode (program or remote program).
2. Open the Module Configuration properties for one of the 1757-SRM modules.
3. Set the Auto-Synchronization option to Conditional.
4. Disqualify the secondary chassis.
5. Store the project that is in the primary controller.
For step-by-step procedures on how to store a project, see Logix5000 Controllers Common
Procedures, publication 1756-PM001.
Important: Do not go back online to the primary controller until you complete the rest of the
steps in this procedure.
6. Go online to the secondary controller and store the project.
7. Return to the Module Configuration properties for one of the 1757-SRM modules.
8. Synchronize the controllers.
9. Set the Auto-Synchronization option to the desired option.
1. Disqualify the secondary chassis.
2. Go online to the primary controller.
3. In the primary controller, load the project.
For step-by-step procedures on how to store a project, see Logix5000 Controllers Common
Procedures, publication 1756-PM001.
4. Synchronize the controllers.
This Load Image option works the same as in a nonredundant system.
• The controller loads the project on power up.
• The controller loads the project before it activates the redundancy feature.
This Load Image option works the same as in a nonredundant system.
• The controller loads the project when the memory is empty or corrupt.
• The controller loads the project before it activates the redundancy feature.
Maintain and Troubleshoot the System
Publication 1756-UM523F-EN-P - December 2006
127