1746NI8 class1 and class3

huynt

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Join Date

Nov 2004

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106

• Jun 10, 2005

• #1

dear all
Do you know different between 1746-Ni8 class1 and 1746Ni8 class3
Thanks

 

504bloke

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Jan 2005

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• Jun 10, 2005

• #2

It explains it quite clearly in the manual here

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1746-um020_-en-p.pdf

See pic below for BRIEF explanation

 

Ken Moore

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• Jun 10, 2005

• #3

The additional words in the Class 3 are primarily status words, which enable monitoring the module in you ladder logic.