FBM205 FOXBORO 控制系统

Y123AA1H1SS 336A4932AGG02 W DP*PL BPIB DSFC
336A4932AGG05 W P*PL BPIB DSFC
336A4932AGG06 W DP*PL BPIB DSFC
336A4932AHG01 W PWM2 DCFED620
336A4932AHG02 W CABP J4 DSFC THPL
336A4932AHG03 W PWM2 PWM S1000
336A4932AHG05 W CABP J4 DSFC THPL
336A4932AHG06 W PWM2 DCFED180
336A4932AHG07 W CABP J4 DSFC THPL
336A4932AJG01 W HFPA DPPL1 CABP J
336A4932AKG01 W A B CPL BPIA DAM
336A4932AKG02 W A B CPL BPIA DAM

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描述

为了完成控制策略,为了替代继电器,使用户等完成类似继电器线路的控制系统梯形图,而编制了一套控制算法功能块(或子程序),称为指令系统,固化在存贮器ROM中,用户在编制应用程序时可以调用。指令系统大致可以分为两类,即基本指令和扩展指令。细分一般PLC的指令系统有:基本指令、定时器/计数器指令、移位指令、传送指令、比较指令、转换指令、BCD运算指令、二进制运算指令、增量/减量指令、逻辑运算指令、特殊运算指令等,这些指令多是类似汇编语言。另外PLC还提高了充足的计时器、计数器、内部继电器、寄存器及存贮区等内部资源,为编程带来极大方便。

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