Translations:Modbus RTU в виде custom protocol/10/en

-- SENDING REQUEST

 if not (sendBytes(request)) then
     DEBUG("Can't send bytes")
     return false
 end
                          -- RECEIVING REPLY --- 
 local respHead, respData, respCRC = {}, {}, {}
 
   -- read Header with length 
 respHead = readBytes(3)
 if (respHead == false) then
     DEBUG("Can't read response")
     return false
 end
 
 if (respHead[1] ~= request[1]) then
     ERROR("Wrong slaveID in response!")
     return false
 end
 
 if (respHead[2] ~= request[2]) then
     if (respHead[2] >= 0x81) then 
         ERROR("EXCEPTION: "..EXCEPTIONS[bit.band(respHead[2], 0x0F)])
         readBytes(2) -- read till the end 
     else       
         ERROR("Wrong Func Code in response")
     end 
  return false;
 end
 
 local resp_Lentgh = respHead[3]; 
       respData = readBytes(resp_Lentgh)
 if (respData == false) then
     DEBUG("Can't read response");
     return false;
 end
 -- check CRC in reply 
 local tmpResponseTab = {}
   for i,v in ipairs(respHead) do 
       table.insert(tmpResponseTab, v) 
   end 
   for i,v in ipairs(respData) do 
       table.insert(tmpResponseTab, v) 
   end 
 
 crc = GetCRC(tmpResponseTab, 0)
 crcLo = GetLoByte(crc)
 crcHi = GetHiByte(crc)
   
 respCRC = readBytes(2)
 if (respCRC == false) then
     DEBUG("Can't read response");
     return false;
 end
 if (respCRC[1] ~= crcLo) or (respCRC[2] ~= crcHi) then 
     DEBUG("Wrong CRC in reply! "..string.format("%X", crcLo).." "..string.format("%X", crcHi));
     return false;
 end 
 
 if (device.name == "DI") or (device.name == "C")  then 
     if (resp_Lentgh ~= count) then
         ERROR("Wrong length in response");
         return false;
     end
 else 
     if (resp_Lentgh ~= count*2) then
         ERROR("Wrong length in response");
         return false;
     end
 end 
                                 -- RETURN DATA --  
   return GetHexFromTable(respData)