Installation Instructions Owner manual
ControlLogix-XT ControlNet Interface Module 27
Publication
1756-IN634A-EN-P - April 2009
Solid or
flashing
green
CPU=XX% This message is the CPU
utilization rate where XX is
the amount of CPU used,
ranging from 0...99%. This
message occurs only if the
CPU utilization exceeds 80%.
No action is required.
OK Module is operating normally. No action is required.
Flashing
green
OK This is normal operation. No connections to or through
the
module exist. No action is
required.
Invalid
Network
C
onfiguration
ControlNet configuration error. Recheck configuration.
Verify that the module’s
net
work address is less than or
equal to the maximum
unscheduled network address
(UMAX).
NET
ERR
A network cabling error exists,
or there are no other active
nodes on the network.
Recheck your network cabling
and
make sure another node
on the network is active
(online).
Rev XX
.XX When you start the module,
its major and minor revisions
are disclosed, causing this
message to briefly appear.
The display shows these
revis
ions where the major
revision appears to the left of
the decimal point, and the
minor revision to the right.
No action is required.
OK
In
dicator
Display Cause Recommended Action