#linuxcnc Logs

Dec 20 2023

01:34 AM NoSpark: My VFD has a RS485 modbus connector, with A, A', B, and B' terminals (along with a 5v+GND input for the isolated side of the interface card) If I want to connect this to a MESA card and use the MESA Modbus driver, any ideas on how to connect? I'm not sure how to connect the B' and A' wires to the MESA card
01:46 AM NoSpark: RX+ and TX+ -> B' and RX- and TX- to A ?