Allen-Bradley DeviceNet 1784-PCIDS, Руководство пользователя, Страница: 70 / 101

Publication 1784-6.5.30 - February 2001
A-2 Diagnostics and Troubleshooting
Module (MOD)
Status Indicator
This bi-color (green/red) LED indicates whether or not the
1784-PCIDS card has power and is operating properly.
Network (NET)
Status Indicator
This bi-color (green/red) LED indicates the status of the
communication link
Network Status Indicator
condition status indicates
off no power No power applied to device
green device operational Device is operating in a normal condition.
flashing green
(1)
(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.
device in standby
(device needs
commissioning) Device needs commissioning due to
configuration missing, incomplete, or
incorrect.
Device may be in the standby state. Refer to
the DeviceNet Specification, Volume II,
Identity Object.
flashing red
(1) recoverable fault e.g., the device’s scan list configuration does
not match the actual network configuration.
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.
Network Status Indicator
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)
(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.
online,
not connected The device has passed the Dup_MAC_ID test
and 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.