描述
在用户程序执行过程中，只有输入点在I/O映象区内的状态和数据不会发生变化，而其他输出点和软设备在I/O映象区或系统RAM存储区内的状态和数据都有可能发生变化，而且排在上面的梯形图，其程序执行结果会对排在下面的凡是用到这些线圈或数据的梯形图起作用；相反，排在下面的梯形图，其被刷新的逻辑线圈的状态或数据只能到下一个扫描周期才能对排在其上面的程序起作用。
ABB YB560103-BR DSQC232 S3 DISPLAY BOARD
ABB YB560103-CA DSQC236A AXIS DRIVE BOARD
ABB YB560103-CB DSQC236B AXIS DRIVE BOARD
ABB YB560103-CC DSQC236C AXIS DRIVE BOARD
ABB YB560103-CD DSQC236G AXIS DRIVE BOARD
ABB YB560103-CE DSQC236T AXIS DRIVE BOARD
ABB YB560103-CH DSQC239 REMOTE I/O BOARD
ABB YB560103-CL DSQC241 S3 POWER SUPPLY BOARD SR926380
ABB YB560103-CN DSQC243 SERIAL MEASUREMENT UNIT
ABB YL787001-AE S1 QHNM 905 TEST Panel CALL
ABB YT212001-AB S2 YYE109A POWER SUPPLY
ABB YT212001-AC S2 YYT102A Servo Control Unit
ABB YT212001-AD YYT102B S2 SERVO CONTROL BOARD
ABB YT212001-AE YTEA250-8 S2 SERVO DRIVE BD
ABB YT212001-AF S2 YTEA250-15 SERVO DRIVE BD
ABB YT212001-AL YYT102D S2 SERVO CONTROL BOARD
ABB YT212001-AM YYT102E S2 SERVO CONTROL BOARD
ABB YT212001-AN S2 YYT102F SERVO CONTROL BOARD
