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+--- Thread: Read Serial (RS485) Data (/showthread.php?tid=1977)
RE: Read Serial (RS485) Data - admin - 06-14-2022
(06-12-2022, 09:34 PM)v1rtus Wrote: The serial port is connected, could u please send me a command that I can use for testing. For example read relays statuses or turn on/off single relay.
if your KC868-Server RS485 address is "1" and "9600bps" have set. You can send these commands by serial port to test whether output1 is ON or OFF.
turn relay1 on: 01 05 00 00 FF 00 8C 3A
turn relay1 off: 01 05 00 00 00 00 CD CA
RE: Read Serial (RS485) Data - v1rtus - 06-16-2022
Unfortunately it did not work even with USB -> RS485 adapter.
Server RS485 settings.
Any ideas?
RE: Read Serial (RS485) Data - admin - 06-17-2022
send data by binary format, because it's HEX format data.
RE: Read Serial (RS485) Data - v1rtus - 06-17-2022
Thanks for the hint
I converted hex to binary: 01 05 00 00 FF 00 8C 3A -> 000100000101000000000000000011111111000000001000110000111010 but unfortunately nothing changed, the error is same.
could u may be record some video to show how u use the serialport with Kincony Server?
RE: Read Serial (RS485) Data - admin - 06-17-2022
already have this video tour: how to use turn on/off relay by Node-Red serial. You can do as this video, the protocol of RS232 as same as KC868-Server's .
RE: Read Serial (RS485) Data - v1rtus - 07-13-2022
I finally managed to make internal RS485 (orange) working.
OS: Ubuntu Core 20.04.4 LTS
Steps:
- Open cmdline.txt
- Remove console=serial0,115200
- Reboot
I am running node-red in docker so I had to also map /dev/ttyS0 as device and give read/write permissions.
RE: Read Serial (RS485) Data - admin - 07-14-2022
ok, great. Thank you for your efforts.