Rockwell Automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual - Manual (Page 37)

Publication 1785-UM024B-EN-P - January 2003
Installing and Configuring Your ControlNet PLC-5 Backup System 3-11
Configuring With Differing Applications
This section assumes that:
• you intend for the secondary PLC-5 in your backup system to
run a different application than the primary PLC-5
• you have already developed separate control applications for
the primary and secondary PLC-5s
• the control applications are loaded onto their respective PLC-5s
• both PLC-5s are powered on, are in Program mode, and are
physically connected to the ControlNet network
• you have not yet configured these PLC-5s to function within a
backup system
To create and configure your backup system under these
circumstances, complete the following steps:
1. Reconfigure ControlNet I/O on the first PLC-5.
2. Configure handshaking messages between both PLC-5s.
3. Reconfigure ControlNet I/O on the second PLC-5.
4. Save the ControlNet configuration.
5. Configure the hot backup parameters on the first PLC-5 and save
the project.
6. Configure the hot backup parameters on the second PLC-5 and
save the project.
Reconfigure ControlNet I/O on the First PLC-5
Reconfigure all ControlNet I/O adapters and modules that will be in
your ControlNet PLC-5 backup system by changing their ControlNet
connection from Exclusive Owner (default) to Redundant Owner.
1. Launch RSNetWorx for ControlNet.
2. Check the Edits Enabled checkbox on the toolbar.
3. Right click on the first PLC-5 processor (the odd-numbered
node) and choose Scanlist Configuration.