In the configuration of the A.I card (The 1756-IF16 module properties) i can't see any thing to do with what happens in the module (or the analog values actually) if it's pulled out of the slot. In the ladder diagram you use the info that was read from the channel but if the A.I card is no longer available (Pulled out of slot or chassis power failure - on remote chassis) than as much as i know, the variable in which the A.I value was stored to, actually shows the last read value which is a big mistake because the real value no longer exist. Does anyone has any idea on how to solve this problem. I do know that one can clear tha A.I value if a fault bit accurs on an A.I channel. I'm looking more for a basic configuation on how an A.I channel behaves if a card is pulled out of slot or the chassis loss of power. Thanks
