Shadders 1 Posted Thursday at 11:11 Share Posted Thursday at 11:11 When connecting to inverters you use pin 1 (RS485B) and pin 2 (RS485A) on the pylontech side RJ45. What RS485 converter are you using to connect to your PC USB? Quote Link to post Share on other sites
R Cerva 2 Posted Thursday at 11:49 Share Posted Thursday at 11:49 Hi. According to pylontech manual pin 1 and 8 are the same, Pin 2 and 7 the same. They recommend using 6 -grd, 7 - RS485A and 8 - RS485B. Will change connector to see if any change. I'm using usb to serial convertor that I use with all my softwares for PLC programming and have no hassles. Some PLC's have issues if convertor not good. On the 9 pin plug what must the connection be. Thanks Quote Link to post Share on other sites
Shadders 1 Posted Thursday at 01:50 Share Posted Thursday at 01:50 (edited) 2 hours ago, R Cerva said: On the 9 pin plug what must the connection be. The modbus standard specifies pins 5 (A) and 9 (B) https://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf Edited Thursday at 02:09 by Shadders Incorrect information originally Quote Link to post Share on other sites
R Cerva 2 Posted Thursday at 03:02 Share Posted Thursday at 03:02 Thanks. Will make cable and test tomorrow. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.