No Title
It is also worth remmembering that although you have been out of Canada for >180 days, if you did not abondon you ties to Canada your PR would not be revoked. Ties to Canada can include maintaining an address in Canada, a bank account, family etc. Also the immigration or custom officer at the POE would have to refer your case to an immigration judge. You can then explain your case to the judge.
I remmember being told all this when landed. It is not a legal opinion, of course.