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???
07/24/04 06:13
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 		 #74780 - But Why??
Responding to: ???'s previous message
ankas said:
as you use optos inbetween you can keep two different powersuply for relay and microcontroler

But Kashyap said he is using the relays as inputs:

http://www.8052.com/forum/rea...&top=74766

so the relay coils are isolated from the microcontroller anyway - there is no need to add optos!

List of 35 messages in thread
TopicAuthorDate
Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
      RE: Reed Switch Sensor            01/01/70 00:00      
         RE: Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
      galvanic isolation twice?            01/01/70 00:00      
         RE: galvanic isolation twice?            01/01/70 00:00      
            RE: galvanic isolation twice?            01/01/70 00:00      
               But Why??            01/01/70 00:00      
                  RE: But Why            01/01/70 00:00      
                     This is how generally...            01/01/70 00:00      
                        RE: This is how generally...            01/01/70 00:00      
                     Reed Relay *INPUTS*            01/01/70 00:00      
                        RE: Reed Relay *INPUTS*            01/01/70 00:00      
                           RE: Reed Relay *INPUTS*            01/01/70 00:00      
                              some clarification for KAi            01/01/70 00:00      
                           RE: Reed Relay *INPUTS*            01/01/70 00:00      
                              RE: Reed Relay *INPUTS*            01/01/70 00:00      
                           You do NOT need an Opto!            01/01/70 00:00      
                              RE: You do NOT need an Opto!            01/01/70 00:00      
                                 RE: You do NOT need an Opto!            01/01/70 00:00      
                                 RE: You do NOT need an Opto!            01/01/70 00:00      
   Start again - what do you really want?            01/01/70 00:00      
      Assumed Scenario            01/01/70 00:00      
      RE: Start again - what do you really wan            01/01/70 00:00      
      RE: Start again - what do you really want?            01/01/70 00:00      
         more clarification            01/01/70 00:00      
            RE: more clarification            01/01/70 00:00      
         RE: Start again - what do you really wan            01/01/70 00:00      
            PLC not a option            01/01/70 00:00      
               RE: PLC not a option            01/01/70 00:00      
                  RE: PLC not a option            01/01/70 00:00      
   OPTO inputs from Reed Switch DONE            01/01/70 00:00      
   Admin please close this thread            01/01/70 00:00      

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