DeviceNet CompactPCI Communication Interface Card
29
Publication 1784-IN036B-EN-P - May 2001
Network (NET) Status Indicator
This bi-color (green/red) LED indicates the status of the communication
link
.
red
unrecoverable fault
Device has an unrecoverable fault. Cycle
power to the card by shutting down and
cycling power to your computer. If the
problem persists, the device may need to
be replaced.
flashing red-green
device self testing
Device is in self test. Refer to the
DeviceNet Specification, Volume II,
Identity Object.
1
The flash rate of the LED is approximately 1 flash per second. The LED should be on for approximately 0.5 seconds
and off for approximately 0.5 seconds.
condition
status
indicates
off
not powered,
not online
Device is not online.
The device has not completed the Dup_MAC_ID test yet.
The device may not be powered; look at the Module Status
LED.
flashing green
1
online,
not connected
Device is online, but has no connections in the established
state.
The device has passed the Dup_MAC_ID test, is online, but
has no established connections to other nodes.
green
link okay, online,
connected
The device is online and has connections in the established
state.
flashing red
1
connection time-out
One or more I/O connections are in the timed-out state.
red
critical link failure
Failed communication device. The device has detected an
error that has rendered it incapable of communicating on
the network (Duplicate MAC ID or Bus-off).
Check network integrity and baud rate of all devices. Then
cycle power to the card by shutting down and cycling power
to your computer.
1
The flash rate of the LED is approximately 1 flash per second. The LED should be on for approximately 0.5 seconds
and off for approximately 0.5 seconds.
condition
status
indicates
