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Topic: Want to listen in on RS485 bus (Read 20 times) previous topic - next topic

Want to listen in on RS485 bus


New to BP3.6 a really nice tool to have.   I want to use this to listen in on a RS485 line that uses RX+, RX-,  TX+, TX- for signaling.
How do I accomplish this with the BP?   Should I convert the signals to RS232 before connecting the BP?   Ah, and drop voltage down...  Pretty sure it would be CMOS RS232 levels.. I think 12v.   

Thank you for the assistance!


Re: Want to listen in on RS485 bus

Reply #1

You'll need a RS485 to <=5volts output PHY of some kind. Microchip has a few that are easy to use, as I recall.
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