There are several ways to display fault messages on an HMI. Fault bits are also used to activate messages on a touchscreen or human-machine interface (HMI), for instance, bit 10.0 might bring up a message that says, "Axis SV1.0 Failed to Extend Correct Fault and Press Reset." The message would be cleared when the fault is corrected and the fault reset button pressed. These reset signals can also be individually conditioned this way on each rung.Faults can also be used in a permissive rung to prevent actuation of an axis.
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