Ico747 Posted August 26, 2011 Report Share Posted August 26, 2011 Sorry the title should be RS 485 on Vision 570!! According to the specs RS485 port (Port 1 or 2) are electricaly insulated. According to the RS485 recomendations I should connect sygnal ground of all devices on a multy drop network. Where is the sygnal ground of Port1 (or Port2) when set as RS485? Quote Link to comment Share on other sites More sharing options...
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