Allen-Bradley 1738-ADNX Manuel d'utilisateur télécharger pdf (Page 90)

Publication 1734-UM015A-EN-E - November 2009

88 Troubleshooting

Troubleshooting Scenarios

The following are scenarios you may encounter while using the modules.

Peer connection is not working

If the Network Status LED is flashing red, one or more connections to the

device are broken or not functioning properly. If the device has been

configured to consume data from peers, it is possible that the data size or data

rate have not been configured correctly.

• Use the Peer Missing bits in the I/O assembly to check which peer

connection is missing.

• Verify the configuration is correct. Upload from the module into

RSNetWorx for DeviceNet.

• Verify the Node number or Slot number is correct.

• Verify the connection size is correct.

• Increase the EPR (Expected Packet Rate).

• Verify that the owner of the connection to the peer (usually a scanner or

controller) is receiving data. The DeviceLogix module cannot make a

connection to a peer; it can only listen to COS (Change-of-State) I/O

data going from the peer to the master.

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Allen-Bradley 1738-ADNX Manuel d'utilisateur Page 90