Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 64)

64 Publication 1756-UM534B-EN-P - November 2010
Chapter 3 Configure Adapter Mode
Autoconfigure Racks When the module is in adapter mode, autoconfigure builds a configuration
based on what it has heard on a running network. This process differs from
scanner mode, because the 1756-RIO module does not scan these racks, only
monitors the information to and from these racks.
The module automatically detects the network baud rate and configures the
racks on an attached Remote I/O network. Autoconfiguration detects the rack
structure and causes the 1756-RIO module to monitor the data to and from
these racks. Active and monitored racks are displayed.
See Active Versus Monitored Racks on the Network on page 67 for detailed
information about active and monitored racks.
Autoconfigure in adapter mode performs the following actions:
• Detects the network baud rate
• Monitors messages to and from racks on the network
• Builds a network configuration from the observed network traffic
• Displays the network configuration
To autoconfigure in adapter mode, you must:
• clear the old configuration.
• download a new, empty configuration.
• set the baud rate to ‘auto’, or to the baud rate that matches the existing
network.
• put the scanner in Run mode until all block transfers execute.
• put the scanner back in Program mode.
• perform the autoconfiguration.
IMPORTANT
The controller with the connection to the 1756-RIO module
must be in program mode when you perform an
autoconfiguration.
ATTENTION
Please note, any configuration previously stored in the 1756-
RIO module is overwritten by the data from the
autoconfiguration. You are given the option to save the previous
configuration before it proceeds with the autoconfiguration.