pcs7 AI card passivation
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PCS7 AI redundancy card signal (4-20MA): The hardware monitoring channel shows normal hexadecimal values, and the current on the channel is within normal limits. For program CH_AI, the QBAD value shows as 1; the input value is normal, while the output value displays the last recorded value. Who encountered it, how to handle it – it has been plugged and unplugged, and the FAT redundant board has also been replaced. None of them can solve it
How are you sure it’s passivated? Is it possible that the instruments on site are broken? Take a few pictures and take a look