Changes made for Pathfinder 5226 controllers.

The Operator Mode has Changed error was created to let operators know that the machine has switched from one man mode to two man mode or vice versa. The problem with that is that it turned into more of a nuisance error instead of a safety acknowledgment. This is because this error is mainly thrown when someone turns the key switch and knows they are changing the man mode. This error really just needs to catch when the machine goes from two man to one man mode, but without a turn of the key switch. This means a failure has occurred and the machine is in an unsafe mode.

This error is now only thrown if the machine is using the legacy Two Man input where turning on the input puts the machine in two man mode. This is because a loss of input puts the machine in input one man mode which means the machine is less safe now. The loss of the input could be from a loose wire that the operator is unaware of and needs it to be known that the machine is less safe. If the machine is using the One Man input a loss of input would put the machine in two man mode and makes the machine safer. Therefore this error would not have to be thrown in this case.