Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 194)

7–6 Troubleshooting
Publication 1336 FORCE–5.18 ––March, 1999
Warning Faults
A warning fault has the lowest priority of all types of faults. A
warning fault indicates a condition that if left uncorrected could
result in a soft fault and is designed to annunciate a condition present
in the system. When a warning fault occurs, the drive is not
commanded to stop. Drive operation is not affected, but a fault code
is entered into the fault queue reflecting the condition. You can
recover by initiating a Clear Fault command, but this is not necessary
for continued operation.
Configurable Faults
By using parameter programming, you can configure whether certain
faults are reported as a soft fault, a warning fault, or no fault when
the fault condition is present. You can use parameters 425 and 426
to configure the faults when you are using ControlNet
communications. If you want the ControlNet Adapter Board to
report the fault condition as a soft fault, you need to set the
appropriate bit in parameter 425 for the primary channel. To have
the ControlNet Adapter Board report the fault condition as a
warning, you need to set the appropriate bit in parameter 426 and
make sure that the corresponding bit is not set in parameter 425.
When a fault condition that is specific to ControlNet
communications occurs, the ControlNet Adapter Board first checks
parameter 425. If the bit representing the fault condition is set, the
condition is reported as a soft fault. If the bit is not set, the
ControlNet Adapter Board then checks parameter 426. If the
corresponding bit is set in 426 but not set in parameter 425, the
condition is reported as a warning. If the bit is not set in either
parameter, the ControlNet Adapter Board does not report the
condition and drive operation continues unaffected.
!
ATTENTION: Ignoring faults that have been
configured as Report Only could damage certain
components in the Drive.
Communication Fault Reporting and Handling
Connections and Transport Classes – ControlNet implements a
producer–consumer model network. The drives support configurable
point to point connections to and from other devices on the network.
Every device has a physical connection to the network, but logical
connections are also required between devices to support the
exchange of data. Two transport classes are supported by the drives
on ControlNet.