Good days,:

Please give us the explainantion how to use the TYPE AND END_TYPE, NO Sturecture

like below:
"
TYPE DataTypeEnum_EngineType :
(MtuT4, CATT3, PerkingsT3);
END_TYPE

"
HOW TO Define the value to " DataTypeEnum_EngineType" inside of "()"

Originally created by: scott_cunningham

To define an ENUM, use TYPE and END_TYPE with ( and ); inside like this:

TYPE T_MACHINE_STATE :
(
   BOOTING,                           //0
   INIT,
   WAITING_FOR_ETHERCAT_BUS,
   STARTING_DEVICE_CHECK,
   CHARGING,
   WAITING_FOR_INPUT_RUN,  //5
   RUN_ACCELERATION,
   RUN_AT_SPEED,
   STOPPING,
   ESTOP,
   ESTOP_RESET,                 //10
   CODE_FAULT
);
END_TYPE

It is also possible to force certain values and the datatype (in this example it should be a DINT) like this:

TYPE BigEnum :
(
   yellow,
   blue,
   green:=16#8000
) DINT; 
END_TYPE

NOTE! I believe it is important to NOT have a comma (",") after the last ENUM item!

to give a value:
etype : DataTypeEnum_EngineType ;
in declaration
(MtuT4, CATT3, PerkingsT3);

in program etype.MtuT4:=value;