Publication 20D-UM002C-EN-P - November 2003
12-4 DriveLogix Back-Up on DeviceNet
Power-Up and
System Start-up
To configure a DriveLogix Back-up system on DeviceNet, you can take the
following steps. Some of these steps are described in greater detail in the rest
of the appendix.
1. Install all I/O and operator interfaces that you need to back-up on
DeviceNet.
We recommend that you reserve node addresses 0 and 1 for the two
DriveLogix controllers used in the back-up. If you do not use 0 and 1,
make sure you reserve two consecutive numbers for the controllers
when you install I/O and other devices on DeviceNet.
2. Connect a DriveLogix controller with a 1788-DNBO scanner to the
DeviceNet network.
3. Set the controller node address to 0 (or the lower of the 2 node
addresses reserved for the DriveLogix controllers).
4. Power-up the controller and the network.
5. Use RSNetWorx for DeviceNet to download the network’s scanlist to
the 1788-DNBO card.
You can use either a scanlist from a new configuration or
previously-used configuration. If the scanlist is a new configuration, we
recommend you save it to a new project for later use.
6. Use RSLogix 5000 software to download the appropriate user program
to the DriveLogix controller.
The program should contain the explicit message(s) that enable the
back-up feature for this controller and scanner. The messages are
described in the Developing the DriveLogix Back-Up Application
section beginning on page 12-6.
7. Put controller into RUN mode.
8. Either disable power to the controller or disconnect the scanner from
DeviceNet. This controller will be the secondary controller.
