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Old January 16th, 2018, 12:58 PM   #1
cornbread
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1746-nr8

I had three 1746-NR8 card go bad in 3 separate controllers. Anyone know of a defect or recall? Getting a bit scared I may need to replace all my NR8 cards proactively.

Any help would be greatly appreciated?
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Old January 17th, 2018, 07:04 AM   #2
A_G
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Those are SLC 500 cards, maybe they were all pretty old? You might want to get in touch with Rockwell to ask if there are known issues with them. Take a photo of the label on the side of the card that has the exact Series number and other info
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Old January 24th, 2018, 10:15 AM   #3
cornbread
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Talking to Rockwell folks they say the cards are good for about 10 year depending on the environment. Just a FYI...
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Old January 24th, 2018, 12:55 PM   #4
cncsparky
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I've had to replace nearly all my SLC500 4 pt analog in modules. Most were >25 years old. The capacitors on the on board power supplies go bad.
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