07.08.2026, 11:56
(07.08.2026, 11:49)admin Wrote: Run this script once and post what you get in LM Logs tab. Change Modbus device IP if needed.
Code:mb = require('luamodbus').tcp() mb:open('192.168.99.141', 502) res, err = mb:connect() if res then mb:setslave(2) res, err = mb:writeregisters(40120, 300) if res then log('write ok') else log('write failed', err) end else log('connection failed', err) end mb:close()
I set it to run every 5 seconds and I get these messages