Wiser for KNX and modbus problem

[admin]

Try reading values in a loop and see if anything appears in Logs:

Code:

require('luamodbus')
mb = luamodbus.rtu()

mb:open('/dev/RS485', 9600, 'N', 8, 1, 'H')
mb:connect()

buffer = {}

mb:setdebug(function(msg)
  buffer[ #buffer + 1 ] = msg
end)

mb:setslave(8)

for i = 1, 1000 do
  buffer = {}
  res = mb:readregisters(6500, 2)
  if not res then
    log(table.concat(buffer))
  end
end

mb:close()