(* Read_Var ETH *)
 
ETH_Management_Table[2]:=10;(* define the Time OUT of your EF. Here it is set to 10*100ms so 1s*)
 
 
IF NOT ETH_Management_Table[0].0 THEN (* IF there is NO activity *)
ETH_READ_ERROR := ETH_Management_Table[1] <>0; (* Set to 1 a Boolean variable if an ERROR is displayed in the Communication or operation Report of the EF *)
	IF ETH_READ_ERROR THEN 			(* IF the Boolean variable is 1 THEN*)
   	ETH_COMM_REPORT := ETH_Management_Table[1]; (* Set the communication error code value in a new variable, that will save this value.*)
	ELSE 						(* ELSE *)
	ETH_COMM_REPORT:=0 ; 			(* RESET the Recording variable *)
	END_IF;
END_IF;
 
 
If NOT ETH_Management_Table[0].0 AND CMD_READ then (* Launch of the Read_Var if there is no activity and CMD_READ*)
READ_VAR(ADDM('Ethernet_CPU{172.16.9.90}'), '%MW', 0, 10, ETH_Management_Table, %MW200:10);
end_if;