3/20/2010 2:55 AM | |
Joined: 10/7/2005 Last visit: 9/20/2024 Posts: 3021 Rating: (1054)
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Hello Hawk1 gfair's suggestion could in principle work, watch out for two things things though: 1.) The termination must be an active one (5V -> 390Ohm resistor -> B line -> 220Ohm resistor ->A line -> 390 Ohm-> 0V) 2.) The relay must be able toessentially seamlessly switch over from one to the other, otherwise you will leave yourself "vulnerable" to experience short bus instabilities(especially at 12Mbit/s). The already dicussed idea of using repeaters in a way that you have only one device attached to it is the one I would personally opt for and perhaps Procentec'sProfihub could be of use for you in this case. I hope this helps |
Cheers |
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3/22/2010 3:14 AM | |
Posts: 37 Rating: (0) |
i think there would probably be a downtime in changing out the tool and as the realy is software driven could be achieved readily. |
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