SHUTDOWN saves the current act pos of all axes and a bit to indicate
whether the axes is moving. STARTUP checks all axes to see if they are
incremental and not moving at previous shutdown and opt-in for value
restore. If all are true then position is restored.
UPS reference library from Beckhoff also added for the saving of values
at shutdown. Might need to be modified as this one is specific for the
particular CPU.
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