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Old October 11th, 2018, 02:35 PM   #1
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DENNISH is offline
Join Date: May 2002
Location: memphis tn
Posts: 13
Modicon Quantum Slow Comms

I have a Modicon Quantum434. I am communicating/programming to it via a NOE771-01 Ethernet card.

Viewing and programming to this processor has become very slow.
The network is ok. (I'm communicating to other plc's just fine) and I have checked every connection.

Changed out the NOE card, the back plane and the processor.
No Change.

I can communicate normally if I connect directly to the processor using RS232.

Has anyone run across this issue before?

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Old October 12th, 2018, 11:03 AM   #2

gclshortt is offline
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Location: Cobourg
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Sounds like a driver. The above link may help you out.
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