Computer Interfacing
Discussions about interfacing and electronics
 

RS485 Networking problem

Cannot get the device to talk to the computer


 

       Computer Interfacing Forum Index -> RS422 and RS485
Author Message
Ursel
Guest







Feb 17, 2010 7:16 pm

I have a Tyco SPR014 System Protection relay that has RS485/Modbus capability and I have a computer that has a Sunrom RS485 to USB adapter. The adapter is transmittting however the SPR014 is not responding. I have double checked all the connections and have installed a 120ohm temination resistor, however I still have no luck with establishing the connection. Any ideas.
Thanks.

       Computer Interfacing Forum Index -> RS422 and RS485
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