Rockwell Automation 1756-CN2_CN2R, Series B ControlLogix ControlNet Interface Module - Manual (Page 26)

26 ControlLogix ControlNet Interface Module
Publication 1756-IN607A-EN-P - February 2008
Green
(cont.) MACID
SWITCH
ERROR Node address switch changed
after you cycled power. No action is required, but we
recommend that you either
return switches to their
original settings or replace the
module, since this could
indicate a latent hardware
problem.
Green 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
Configuration ControlNet configuration error. Recheck configuration.
Verify that the module’s
network 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
revisions where the major
revision appears to the left of
the decimal point, and the
minor revision to the right.
No action is required.
Indicator
OK
Display
Cause Recommended Action