LM as a Modbus slave : number of slaves

[SigmaTec]

"Connection refused" means that either your slave script is not running or it's not using port 502. The test script is a master that checks if a local slave is running or not.

I use your previous script, that I run. Then I run your test script.
Did I make a mistake ?

Code:

if not mb then
  require('luamodbus')
  mb = luamodbus.tcp()

  mb:open('0.0.0.0', 502)
  mb:setslave(2)

  function setint64(grpaddr, regaddr)
    local value = grp.getvalue(grpaddr) or 0
    local raw = knxdatatype.encode(value, dt.int64).dataraw
    local r1 = raw:byte(2) * 0x100 + raw:byte(1)
    local r2 = raw:byte(4) * 0x100 + raw:byte(3)
    local r3 = raw:byte(6) * 0x100 + raw:byte(5)
    local r4 = raw:byte(8) * 0x100 + raw:byte(7)

    mb:setregisters(regaddr, r4, r3, r2, r1)
  end

  function updateregisters()
    setint64('32/1/1', 3204)
  end