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  1. LT_E Compare not working reliably

    Dear, I discovered a problem in an existing program. The output / marker should only go high when the actual pressure is lower than the set pressure. (Druk_laag) However, we see the marker sporadically goes high / low (usually between 800.0  and 1000.0 ) But not turn '1' under the set value of < 50.0. Marker is not written anywhere else, I used other markers to rule this out. but not different ... I also tried this in the simulation and another PLC but the same problem. According to the manual this should work like this Is there something I misjudged?