Rockwell Automation 1734-AENT, Series B POINT I/O EtherNet/IP Adapter Module User Manual - Manual (Page 59)

Rockwell Automation Publication 1734-UM018B-EN-P - October 2013 49
Configure the Adapter for Direct Connection in RSLogix 5000 Software Chapter 4
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 AENT 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.