Allen-Bradley 1756-CNB User Manual page 125

For this information about a
CNB module
Address of the module
Percent of CPU usage
Number of open connections
Number of unconnected client
buffers
Number of unconnected server
buffers
State of the module's keeper
function
Number of times that the
bandwidth of the module was
exceeded
Four-Character Display Readings
Display Where
A#xx xx is the node address of the module.
%Cxx xx is the percent of CPU usage. The range for the display is 00 - 99%.
nCxx xx is the number of open connections that the module is using.
Ucxx xx is the number of unconnected client buffers that the module is using. You see this
number only if the module is using 80% of its buffers or more. The module stops showing
the number if the number drops below 50%.
Usxx xx is the number of unconnected server buffers that the module is using. You see this
number only if the module is using 80% of its buffers or more. The module stops showing
the number if the number drops below 50%.
Kpxx xx is the state of the module's keeper function.
If xx is Then the module is
Ai Active network keeper with either:
• invalid keeper information
or
• keeper signature that does not match the keeper signature of the network.
Av Active network keeper with:
• valid keeper information.
• keeper signature that defines the keeper signature of the network.
Ii Inactive network keeper with either:
• invalid keeper information
or
• keeper signature that does not match the keeper signature of the network.
Iv Inactive network keeper with valid keeper information that matches the
keeper signature of the network.
• Powering up with invalid keeper information
Oi
or
• offline with invalid keeper information.
• Powering up with valid keeper information that may or may not match the
Ov
keeper signature of the network
or
• offline with valid keeper information that may or may not match the
keeper signature of the network.
Bxnn nn is the number of times that the bandwidth of the module was exceeded (bandwidth
exceeded error) since the module was turned off or reset. You see this number only if the
number is more than zero.
Maintain and Troubleshoot the System
Publication 1756-UM523F-EN-P - December 2006
125