Rockwell Automation 1738-AENTR, Series B POINT I/O and ArmorPOINT I/O Dual Port EtherNet/IP Adapters User Manual - Manual (Page 60)

52 Rockwell Automation Publication 1734-UM017B-EN-P - October 2013
Chapter 4 Configure the Adapter for Direct Connection in RSLogix 5000 Software
Recover From an
Overloaded Adapter Each I/O connection established with the I/O adapter consumes a portion of
microprocessor bandwidth. The amount of bandwidth used by a connection
depends on several variables, such as the requested packet interval (RPI), number
of I/O modules involved in the connection, and rate of change of the I/O.
The AENTR adapter continuously monitors this bandwidth and rejects requests
for new I/O connections when there is insufficient bandwidth available to
support the new connection.
The condition where the I/O adapters cannot support the connection due to a
limit of the bandwidth of the microprocessor is shown on the Connection tab of
the Module Properties dialog.
If you encounter this condition, the only action you can take is to alter the
existing connections to reduce the amount of microprocessor bandwidth
consumed. The most likely fixes for this condition include the following:
• Increase the RPI.
• Decrease the number of connections.
• Remove modules from the rack-optimized I/O connection.
• Remove the rack-optimized connection if there are no modules
participating in it.
Chapter Summary This chapter provided instructions on how to configure the POINT I/O
Adapter for Direct Connection through the the RSLogix 5000 software. It
included information about setting up the hardware and configuring the I/O,
adding the adapter to the configuration, and configuring the adapter with a fixed
IP address.