Node-red serial Zusb on reactor board - how?

Hello,

i try to make a serial connection to my old Reactor relay board. i am using nodered on a raspberry pi.
https://www.controlanything.com/Relay/Device/KLRR85_USB

i send the header byte (254) and the command code (33) in ascii as the manual says

The connection sign in node red is green and the led on the Zusb board is blinking (TX)
but there is nog response at all.

Were do i go wrong?
Please help!!

image

[{“id”:“6767c8a9.23d13”,“type”:“inject”,“z”:“c3aed0d3.3ce58”,“name”:"",“topic”:"",“payload”:“254”,“payloadType”:“str”,“repeat”:"",“crontab”:"",“once”:false,“x”:170,“y”:220,“wires”:[[“83dfc8b6.62228”]]},{“id”:“855e8a4e.ff66a”,“type”:“inject”,“z”:“c3aed0d3.3ce58”,“name”:"",“topic”:"",“payload”:“0”,“payloadType”:“str”,“repeat”:"",“crontab”:"",“once”:false,“x”:170,“y”:300,“wires”:[[“83dfc8b6.62228”]]},{“id”:“88158cd0.76f728”,“type”:“inject”,“z”:“c3aed0d3.3ce58”,“name”:"",“topic”:"",“payload”:“33”,“payloadType”:“str”,“repeat”:"",“crontab”:"",“once”:false,“x”:170,“y”:260,“wires”:[[“83dfc8b6.62228”]]},{“id”:“efee3833.d397e”,“type”:“debug”,“z”:“c3aed0d3.3ce58”,“name”:"",“active”:true,“console”:“false”,“complete”:“true”,“x”:370,“y”:140,“wires”:[]},{“id”:“83dfc8b6.62228”,“type”:“serial out”,“z”:“c3aed0d3.3ce58”,“name”:"",“serial”:“56b76018.bb4958”,“x”:390,“y”:260,“wires”:[]},{“id”:“b80b3bbd.bbf63”,“type”:“serial in”,“z”:“c3aed0d3.3ce58”,“name”:"",“serial”:“56b76018.bb4958”,“x”:150,“y”:140,“wires”:[[“efee3833.d397e”]]},{“id”:“56b76018.bb4958”,“type”:“serial-port”,“z”:"",“serialport”:"/dev/ttyUSB0",“serialbaud”:“115200”,“databits”:“8”,“parity”:“none”,“stopbits”:“1”,“newline”:“99”,“bin”:“false”,“out”:“time”,“addchar”:false}]

update

Installed and used on a windows PC:

  • the base software, communication OK
  • the comm operator, communication OK (send 254 33 and get a good respone(85))

Send a string (254 33) on node-red (same PC), no response.

Were do i go wrong ?

Hi Koen,

Just try with one inject node, change the payload type to “buffer” and the value to [254, 33, 0]

Hi Trey,

You are my hero !!
It’s working

Thanks!!

I’m Glad I could help!