Description 


BLD (program display instruction; null instruction) executes no function and does not affect the status bits. The instruction is used for the programming device (PG) for graphic display. It is created automatically when a Ladder or FBD program is displayed in STL. The address specifies the BLD instruction and is generated by the programming device. 


설명보면 존나그냥 아무것도 안하는 앤데..


보통 프로그램 언어에서는 어떨때 씀?


프밍지식이 딸리니 밥벌어먹기 힘들다...


저기나온 STL은 ST언어의 STL