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Rockwell Automation 1785-CHBM ControlNet Hot Backup Quick Start User Manual

Page 5

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5

Publication 1785-QS001A-EN-P - January 2001

1. For each processor node of your backup system, you must

create two scheduled peer-to-peer messages; one Send and
one Receive message for each. These messages must be
exactly 5 words in length.

2. Record the Send and Receive message numbers from the odd

processor node below:

3. Send message number:__________

4. Receive message number:__________

5. You will use these numbers later in the configuration process.

6. For the Requested Packet Interval (RPI), enter a value from 1

to 32,767.

7. This value must equal the Network Update Time (NUT).

Configure I/O

Configure any rack and module connections you have in your
backup system. Do this by changing the connection from the default
setting of Exclusive Owner to a Redundant connection.

Important: You must do this for BOTH processors.

After you change the connection setting, save your configuration. If
the system is properly configured, the I/O LEDs on the ControlNet
PLC-5 processors will be solid green.

Create and Configure the ControlNet Backup Integer File

1. Launch RSLogix 5.

2. Under the Controller folder, open the ControlNet Hot Backup

menu.