Rockwell Automation 1794-L34 FlexLogix Controller System User Manual - Manual (Page 107)

Publication 1794-UM001G-EN-P - January 2007
FlexLogix Back-Up on DeviceNet 107
9. Connect the other FlexLogix controller with a 1788-DNBO
scanner on the network.
10. Set the node address to 0.
11. Power-up the controller and scanner.
12. Use RSNetWorx for DeviceNet to download the same scanlist
used in step 5.
It may be necessary to browse the network again before
downloading the scanlist. This second browsing of the network
allows RSNetWorx for DeviceNet to establish communication to
the new scanner at the same node number as the previous
scanner.
13. Use RSLogix5000 to download the user program to the second
FlexLogix controller as performed in step 6.
Typically, the same user program is downloaded to the second
FlexLogix controller as the first. However, unlike the scanlists,
the user programs in the controllers do not have to be identical.
14. Put the controller into RUN mode.
This controller is now ready to go and is the primary controller.
15. Reapply power to the secondary controller and/or reconnect the
secondary scanner to the DeviceNet subnet.
This completes the back-up process. For more detailed information on
some of the steps listed previously, see the next section.