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

Publication DNET-UM004A-EN-P - March 2004

Troubleshoot a DeviceNet Network        12-5

DeviceNet Network Status indicator

DeviceNet I/O Status indicator

off

• Device is not online.
• No network power.
• The device may not be powered.

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

the device.

2. Make sure the DeviceNet cable is supplying power to 

the communication port.

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 

flashing 
green

Device is in idle mode

To control outputs, place the device in run mode.

solid green

Device is in run mode

None.

off

• Device is not online.
• No network power.
• The device may not be powered.

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

the device.

2. Make sure the DeviceNet cable is supplying power to 

the communication port.