System Fault Led On

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fpramanik
Posts: 28
Joined: Tue Oct 15, 2013 1:18 pm

System Fault Led On

Post by fpramanik »

Dear all,
I am facing a problem ...system fault LED on in CPU314c-2DP .
I diagnosis the CPU and found error 'Illegal command in block(Detect by compiler)'
then I realize we tried PIW754 move to IW754 for forcing analog input and download.But it does not download. After that I deleted that move. In the mean time System fault glow. I compared offline and online there is no difference. Even I downloaded original FC block....no changed

System running...

Please help...