local USEBROADCAST = false -- sw on off broadcast mode
--- OBIS codes  --------------------------------------------------------------------
local obisCache = {                         
                    
                                        -- Voltages
                    [3270] = { 0x5, 0x01, 0x02, 0x4F, 0x08 },-- ph 1
                    [5270] = { 0x5, 0x01, 0x02, 0x50, 0x08 }, 
                    [7270] = { 0x5, 0x01, 0x02, 0x51, 0x08 },  
					
                                        -- Currents
                    [3170] = { 0x05, 0x01, 0x02, 0x4b, 0x08 }, -- ph 2
                    [5170] = { 0x05, 0x01, 0x02, 0x4c, 0x08 }, 
                    [7170] = { 0x05, 0x01, 0x02, 0x4d, 0x08 }, 
					
					-- Active power 
                    [170] = { 0x05, 0x01, 0x02, 0x3A, 0x08 }, -- total 
                    
                    [171] = { 0x05, 0x01, 0x02, 0x3F, 0x08 }, -- ph 1 
                    [172] = { 0x05, 0x01, 0x02, 0x43, 0x08 }, -- ph 2
                    [173] = { 0x05, 0x01, 0x02, 0x47, 0x08 }, -- ph 3
					
					-- Acitve energy
		    [180] = { 0x05, 0x01, 0x02, 0x01, 0x08  }, -- total 
                    
				-- R. pos. energy 
                    [380] = { 0x05, 0x01, 0x02, 0x03, 0x08 }, 
					
			        -- R. neg. 
                    [480] = { 0x05, 0x01, 0x02, 0x04, 0x08 }, 
					-- Freq. 
                    [580] = { 0x05, 0x01, 0x02, 0x52, 0x08 }, 
					-- Power factor 
                	[581] = { 0x05, 0x01, 0x02, 0x3E, 0x08 }, 
					
			-- R. power pos. 
		    [582] = { 0x05, 0x01, 0x02, 0x3C, 0x08 }, 
                	  -- R. power neg. 
		    [583] = { 0x05, 0x01, 0x02, 0x3D, 0x08 }, 
						
                    [181] = { 0x05, 0x01, 0x02, 0x01, 0x20  } , -- tariff 1
                    [182] = { 0x05, 0x01, 0x02, 0x01, 0x38 } ,  -- tariff 2
                    [183] = { 0x05, 0x01, 0x02, 0x01, 0x50 } , -- 3
                    [184] = { 0x05, 0x01, 0x02, 0x01, 0x68 } , -- 4
                     
                                        -- Time
                    [100] = { 0x05, 0x06, 
                                            0x02, 0x68, 0x08, 
                                            0x02, 0x68, 0x18,
                                            0x02, 0x68, 0x20,
                                            0x02, 0x68, 0x28,
                                            0x02, 0x68, 0x30,
                                            0x02, 0x68, 0x38,
                            }, 
                    }

SRNMsample =     {0x7E, 0xA0, 0x0A, -- frame type and length
                        0x00, 0x00, -- upper HDLC address 
                        0x00, 0x00, -- lower dest address
                        0x21, -- source address (client) 0x01
                        0x93, -- frame type SNRM
                        0x00, 0x00, -- now CRC
                        0x7E -- HDLC frame closing  flag
                 } 

AARQsample = {0x7E, 0xA0, 0x3A, -- frame type and length
            0x00, 0x00, 0x00, 0x00, -- now dest address
            0x21, 0x10,
            0x0, 0x0,         -- HEADER  CRC 
            0xE6, 0xE6, 0x00, -- llc 
            0x60, 0x29, -- tag and length
            0xa1, 0x09, 0x06, 0x07, 0x60, 0x85, 0x74, 0x05, 0x08, 0x01, 0x02,
            0xa6, 0x0a, 0x04, 0x08, 0x45, 0x47, 0x4d, 0x30, 0x35, 0x38, 0x32, 0x39, 
            0xBE, 0x10, 0x04, 0x0E, 0x01, 0x0, 0x0, 0x0, 0x06, 
            0x5F, 0x1F, 0x04, 0x00, 0x1C, 0x1B, 0x20, 
            0x0, 0x80, --  
            0x0, 0x0, -- CRC
            0x7E}; 
 
DSCsample = {0x7E, 0xA0, 0x0A, -- frame type and length
            0x00, 0x00, 0x00, 0x00, -- now dest address
            0x21, 
            0x53,
            0x00, 0x00, -- now CRC
            0x7E};        

local err_cnt = 0;
local step_Ok = 0;
local alreadyRead = false;
local timeStmp = 0;       
local POLLTIME = 60; 

local repliesCache = {}  -- copy here meter's replies 

---------------------------------------------------------------------
function createDevices ()
  addDevice({name = "R",  shift = 0, base = 10, xtraFields = {96, 1, 3, 0, 0}})
end
-- Turn to your local representative for more information.