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Allen-Bradley ControlLogix Ethernet Driver Help

102

Unable to retrieve the Identity for device '<device>'. [CIP Error=<error>, Ext. Error=<error>]. All tags will use Symbolic Protocol Mode

Error Type: Warning

Possible Cause:

The Identity was unable to be retrieved because the device returned an error within the CIP portion of the EtherNet/IP packet during a request. Devices set to a Logical mode will revert to Symbolic Mode until the issue is resolved.

Solution: The solution depends on the error code that is returned. If the problem persists, contact Technical Support.

See Also: CIP Error Codes

Unable to retrieve the Identity for device '<device>'. [Encap. Error=<error>]. All tags will use Symbolic Protocol Mode

Error Type: Warning

Possible Cause:

The Identity was unable to be retrieved because the device returned an error within the Encapsulation portion of the EtherNet/IP packet during a request. Devices set to a Logical mode will revert to Symbolic Mode until the issue is resolved.

Solution:

The driver will attempt to recover from such an error. If the problem persists, contact Technical Support. This excludes error 0x02, which is device-related, not driver-related.

See Also: Encapsulation Error Codes

Unable to retrieve the Identity for device '<device>'. Frame received contains errors. All tags will use Symbolic Protocol Mode

Error Type: Warning

Possible Cause:

  • 1.

    The packets are misaligned due to connection and/or disconnection between the PC and device.

  • 2.

    There is bad cabling connecting the devices that is causing noise.

  • 3.

    The wrong frame size was received.

  • 4.

    There is a TNS mismatch.

  • 5.

    An invalid response command was returned from the device.

  • 6.

    The device is not EtherNet/IP enabled.

Solution:

1. The driver will recover from this error without intervention. If this error occurs frequently, there may be an issue with the cabling, the network, or the device itself. 2. Verify that the device being communicated with is a Rockwell EtherNet/IP-enabled device.

ControlLogix Specific Error Messages The following sections pertain to messaging from the ControlLogix driver level source.

ControlLogix Specific Error Messages Read Errors (Non-Blocking) Read Errors (Blocking) Write Errors Project Synchronization Errors

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