Справочник Пользователя для Allen-Bradley devicenet modules in logix5000 control systems

Publication DNET-UM004A-EN-P - March 2004

Troubleshoot a DeviceNet Network        12-7

Module status (MS) indicator

Network status (NS) indicator

N

off

No power applied to device.

Turn on power to the controller.

solid green  Device is OK.

None.

flashing 
green

Device either needs commissioning or is in the standby 
state.

Make sure the device is correctly configured.

flashing 
red

Recoverable fault.

Make sure the scan list of the device matches the 
configuration of the network.

solid red

Device has an unrecoverable fault. 

1. Cycle power to the controller.
2. Replace the device

flashing 
red-green

Device is in self test. 

None.

off

• Device is not online.
• The device has not completed the Dup_MAC_ID test.
• The device may not be powered.

If the module (MS) indicator is off, turn on power to the 
controller.

flashing 
green

Device is OK but is not communicating with other devices on 
the network.

If the device is supposed to communicate with other devices, 
add those devices to the scan list of this device.

solid green

Device is OK and is communicating with other devices on the 
network.

None.

flashing 
red

Communication with at least 1 device has timed out.

Check the status tags of this device to determine which 
device has timed out.

solid red

Any of the following:

• Another device is using the same address.
• Communication problems on the network (bus off 

condition).

• Device has an unrecoverable fault and may need to 

be replaced.

• Make sure the device has a unique address.
• Make sure all devices are at the same baud rate.
• Cycle power to the device.
• For more corrective actions, see status code 91 on