luamodbus

[admin]

You need to access metatable to get function list:

Code:

function getmetafunctions(object)
  local mt = getmetatable(object)
  local res = {}

  if type(mt) == 'table' then
    for k, v in pairs(mt) do
      if type(v) == 'function' then
        res[ #res + 1 ] = k
      end
    end

    table.sort(res)
  end

  return res
end

obj = require('luamodbus').rtu()
fns = getmetafunctions(obj)
log(fns)

For CRC calculation see this post: https://forum.logicmachine.net/showthread.php?tid=808