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???
05/28/08 09:21
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 		 #155214 - Where are erik and Andy
Responding to: ???'s previous message
Hi;
Irrespective of the problem why 1st controller fails,I need a suggestion is this really possible. What will happen if WDT runs. How does my 2nd controller work from where 1st had stopped. I dont want system to reset at any condition.
I am upto design something in a project which i suppose cant disclose. If it is possible in real time then this question is worth a look.
what will WD timer do. other than reset. how will it activate the 2nd controller when 1st is not working.

List of 32 messages in thread
TopicAuthorDate
stanby controller for emergency            01/01/70 00:00      
   ALE pulse            01/01/70 00:00      
   What are the expected problems?            01/01/70 00:00      
   The problem here is...            01/01/70 00:00      
      What about processing speed            01/01/70 00:00      
         processing speed should not be an issue            01/01/70 00:00      
   How do you know if it has failed?            01/01/70 00:00      
      my querry            01/01/70 00:00      
         Use a watchdog            01/01/70 00:00      
            I think watchdog not suitable            01/01/70 00:00      
               watchdog            01/01/70 00:00      
                  if it is critical system            01/01/70 00:00      
               Backup controllers            01/01/70 00:00      
         does that going to help            01/01/70 00:00      
            Where are erik and Andy            01/01/70 00:00      
               Irrespective....            01/01/70 00:00      
                  What you say is correct            01/01/70 00:00      
                     engineering procedure            01/01/70 00:00      
               Where are erik and Andy - asleep            01/01/70 00:00      
   much simpler            01/01/70 00:00      
   always operating or failsafe            01/01/70 00:00      
   Have you considered this ...            01/01/70 00:00      
      there is always a gotcha            01/01/70 00:00      
         Yes, but it always depends ...            01/01/70 00:00      
            hardware description is needed            01/01/70 00:00      
               Is this feasible            01/01/70 00:00      
                  No,            01/01/70 00:00      
                  You have reinvented a watchdog            01/01/70 00:00      
                     this is running in circles because ....            01/01/70 00:00      
                        Nothing's perfect            01/01/70 00:00      
                           not if you are only concerned with hardware failur            01/01/70 00:00      
                              it's all about testing            01/01/70 00:00      

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