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I'm glad I stirred up the discussion a little.
My own view is that POWER_DENIED is not a fault but a normal operating mode in the case where pd_requested_power > pse_available_power.
But the text says that this state is entered in the case of a fault and is ambiguous as to what exactly constitutes the fault.
I tend to believe that two entry points (where power is unavailable and not turned on) is not a fault-like condition, but the one where power has been applied and then is turned off, that seems like a fault condition.
Perhaps the best way to address this is to keep it outside of the Fault and Delivering Power blocks as a stand-alone state?
Give me another day or so and I should be able to post the proposed state diagrams. They will be preliminary and subject to review/change/etc.
Dan DoveOn 2/11/15 3:25 PM, Bruce Nordman wrote:
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