Publication 1734-UM011A-EN-P - February 2004
Configure the 1734-AENT for Direct Connection in RSLogix 5000 4-19
An Overloaded 1734-AENT
Each POINT I/O connection established with the 1734-AENT will consume
a portion of the microprocessor’s bandwidth. The amount of bandwidth used
by a connection depends on a number of variables, including the Requested
Packet Interval (RPI), the number of POINT I/O modules involved in the
connection, and the rate of change of the I/O. The 1734-AENT continuously
monitors this bandwidth and will reject requests for new connections when
there is insufficient bandwidth available to support the new connection.
The condition where the 1734-AENT cannot support the connection due to a
limit of the microprocessor’s bandwidth is shown below.
If this condition is encountered, the only action that can be taken is to alter the
existing connections to reduce the amount of microprocessor bandwidth
consumed. The most likely fixes for this condition include:
• Increase the RPI
• Decrease the number of connections.
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