Allen-Bradley 1769-SM1 User Manual page 114

8-6 Troubleshooting
Events
Many events in the Event queue occur under normal operation. If you
encounter unexpected communications problems, the events may help
you or Allen-Bradley personnel troubleshoot the problem. The following
events may appear in the event queue:
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Event Description
No Event Empty event queue entry.
DPI Bus Off Flt A bus-off condition was detected on DPI. This event may be
caused by loose or broken cables or by noise.
Ping Time Flt A ping message was not received on DPI within the specified
time.
Port ID Flt The debounced DPI Pin ID is read as zero or seven after the
module has completed startup.
Port Change The debounced DPI Pin ID has changed after the module has
Flt completed startup.
Host Sent The drive sent a reset event message.
Reset
EEPROM Sum The startup sequence detected corrupt EEPROM storage in
Flt the module.
Online @ 125 The module detected that the drive is communicating at 125
kbps kbps.
Online @ 500 The module detected that the drive is communicating at 500
kbps kbps.
Bad Host Flt The module is connected to an incompatible drive.
Dup. Port Flt Another peripheral with the same port number is already in
use.
Type 0 Login The module has logged in for type 0 control.
Type 0 Time The module has not received a type 0 status message within
Flt the specified time.
DL Login The module has logged in for a Datalink.
DL Reject Flt The drive rejected an attempt to log in to a Datalink because
the Datalink is not supported or is used by another peripheral.
DL Time Flt The module has not received a Datalink message within the
specified time.
Reserved —
Control The module has sent a "Soft Control Disable" command to the
Disabled drive.
Control The module has sent a "Soft Control Enable" command to the
Enabled drive.
Message A Client-Server message sent by the module was not
Timeout completed.
Flt Cfg Error The module detected a 32-bit fault configuration reference or
Datalink when the drive expects a 16-bit value.
App Updated Startup sequence detected new application firmware in the
flash candidate area.
Net Comm The module detected a communications fault on the network.
Fault
Net Sent The module received a reset from the network.
Reset
Net Close Flt An I/O connection from the network to the module was closed.