Question

[求助-西门子PLC300/400]这段程序是什么意思为什么要编它

L #OB1_SCAN_1 L 1 ==I

Answer 1

OB1_SCAN_1 BYTE ?B#16#01: completion of a warm restart? B#16#02: completion of a hot restart? B#16#03: completion of the main cycle? B#16#04: completion of a cold restart? B#16#05: first OB1 cycle of the new master CPU after master-reserve switchover and STOP of the previous master///////////////////////////////////////L #OB1_SCAN_1 L 1 ==I//////////////////////////////这段程序的意思就是判断你是不是对cpu进行了暖启动。 查看更多答案>>