Article: KB-10851
Info:
ControlNet Network Card Failure
Skill required to complete this article: Electrical - Control Systems and level is Intermediate.

A manufacturing issue has been discovered with specific Rockwell Automation ControlNet™ network cards.  Some cards do not complete the power-up sequence after a power cycle.

Cause

An anomaly has been investigated that relates to a single memory component supplier for SDRAM components they manufactured and sold to Rockwell Automation for a period of time. These memory components are used in select Rockwell Automation products as well as industry wide. This anomaly results in the product not completing a power up sequence (see anomaly criteria below).

This anomaly is attributed to a degradation mechanism due to a specific memory component design. This anomaly only exhibits itself after a power cycle. Although this is a degradation mechanism it is not expected that all effected memory components will exhibit this anomaly in the components expected lifetime. The number of affected memory components that will exhibit this anomaly is expected to be low. This degradation mechanism does not impact product operation and only exhibits the anomaly after a power cycle (upon power up). It is possible that if the suspect memory component is exposed to an elevated temperature the product may begin to function again after a power cycle. If this occurs, the product will continue to operate until a subsequent power cycle.

See the "Anomaly Criteria" section below for specifics on the prerequisite conditions.

The memory component supplier has since changed the design of the memory components to correct for this anomaly. Any product listed in the "Identification" section below that is repairable (not all products listed are repairable), and returned to Rockwell Automation for repair / remanufacturing, will have the suspect memory components replaced as part of the standard process.

Anomaly Criteria

At the time of this writing the following conditions must be met for a Rockwell Automation product to potentially exhibit this anomaly:

  • Product contains one of the affected memory components (See "Identification" section below)
  • Product has been in operation for approximately one or more years (combined or continuous)
  • Product is power cycled, by any means (intentional, restart as part of a firmware upgrade, power loss, etc)

Identification

The following series levels of Rockwell Automation catalog numbers manufactured between the dates specified may exhibit this anomaly:

Catalog Number

Series

Manufacturing Date Range

1783-MS06T

A

See attached list of serial numbers

1783-MS10T

A

See attached list of serial numbers

1783-RMS06T

A

See attached list of serial numbers

1783-RMS10T

A

See attached list of serial numbers

1756-CN2

B

All madebetween June 1, 2009 and January 31, 2012

1756-CN2R

B

All madebetween June 1, 2009 and January 31, 2012

1756-CN2RXT

B

All madebetween June 1, 2009 and January 31, 2012

1756-DNB

D

All madebetween June 1, 2009 and January 31, 2012

1756-EN2F

A

All madebetween June 1, 2009 and January 31, 2012

1756-EN2F

B

All madebetween June 1, 2009 and January 31, 2012

1756-EN2T

B

All madebetween June 1, 2009 and January 31, 2012

1756-EN2T

C

All madebetween June 1, 2009 and January 31, 2012

1756-EN2TR

A

All madebetween June 1, 2009 and January 31, 2012

1756-EN2TR

B

All madebetween June 1, 2009 and January 31, 2012

1756-EN2TRXT

B

All madebetween June 1, 2009 and January 31, 2012

1756-EN2TSC

A

All madebetween June 1, 2009 and January 31, 2012

1756-EN2TXT

C

All madebetween June 1, 2009 and January 31, 2012

1756-EN3TR

A

All madebetween June 1, 2009 and January 31, 2012

1756-RM

A

All madebetween June 1, 2009 and January 31, 2012

1756-RM

B

All madebetween June 1, 2009 and January 31, 2012

1756-RMXT

A

All madebetween June 1, 2009 and January 31, 2012

1756-RMXT

B

All madebetween June 1, 2009 and January 31, 2012

Workaround

  • Limit unnecessary power cycling
  • Ensure spare parts are available before any planned power cycling of the devices identified above in the "Identification" section.

Requested Customer Action

If a product identified above by the “Anomaly Criteria” section exhibits this anomaly, replace the product. Following replacement, contact Intelligrated’s Lifecycle Support Services team at 1-877-315-3400 and reference this Knowledgebase article for repair.

 

 

 


DISCLAIMER:

Information in this document is subject to change without notice and does not represent a commitment on the part of Intelligrated Systems, LLC (“Intelligrated”).  This information is typical of the questions and general advice given; however, your particular case and circumstances may produce different results or require different recommendations.  Therefore, use of this information is not a suitable replacement for contacting Intelligrated’s Lifecycle Support Services for specific recommendations and solutions for your application.

No part of this article may be reproduced or transmitted in any form or by any means including recording or information storage and retrieval systems, for any purpose without the express written permission of Intelligrated.  All information contained within the article is private and confidential and the sole property of Intelligrated.

In no event shall Intelligrated be liable for any damages whatsoever including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss, even if Intelligrated has been advised of the possibility of such damages.  Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you.

 

 

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Published on 9/23/2016.
Last Modified on 9/27/2016.
Last Modified by Patricia Haws.
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