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nowayhi

How to get correct stable average value with fx3u and fx2n-2ad

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Hello Everyone, 

Need help with reading channel data of FX2N-4AD with FX3U Cpu. I have added all the logic and it works also. Problem is the FROM function stop reading/fetching data from FX2N-4AD after some time i.e couple of hours and value just hang. Like 502 or something, untill you reset the whole PLC. What could be the problem.

For the further info,

-I have connected the FX2N-4AD on the right of fX3U-64M.

-There are two extension blocks FX2N-16EX and FX2N-16EYR also added to the right of FX3U-64M

-Order of mounting....FX3U-64M > FX2N-16EX > FX2N-16EYR > FX2N-4AD > FX2N-4AD

 

I have tried using the 2nd special module connected at the end, but It showed similar problem after few hours of running. THis shows the Special blocks fx2n-4ad are okay. There is something wrong with PLC maybe? Please help

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if the plc stops, there will be diagnostic info explaining what the problem is. 

three could be million reasons: wrong configuration, program error / overflow, not properly wired, not properly referenced, transients, thermal problems,  defective hardware, power blips ....

you may want to narrow it down a bit

 

 

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