DS200DSPCH1A GE 继电器输出电路

IS200GDDDG1ACA

TVM-1-D/ D53154-R05

IS200EGDMH1ADE

IS200EBKPG1CAA

151X1207DG06SA01

IC752SPL013 151X1207BA10SA01
IS200EPSMG1ADC

IS200ERAXH1A

IS200TAMBH1A

IS200EACFG2A

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描述

开放式PLC硬件结构采用CPU+外围模块+接口构成,各个接口都按标准设计,大大提高了PLC的开放性,使其能方便地与大系统连接。编程语言遵循国际标准IEC61131-3,并将基于PC的编程软件作为PLC首选编程工具。系统硬件部分采用高性能51内核处理器STC89C51,其为模块化设计,采用滤波、隔离电路,以降低成本。主要电路有:微控制器STC89C51RC、开关量输入电路、继电器输出电路、晶体管输出电路、RS232通信接口电路、电源电路、时钟复位电路和USB通信接口电路等,PLC硬件系统框图如图2所示,软件采用Borland公司集成开发软件C++Builder,通过集成平台对51内核处理器指令集进行解释、编译,使梯形图语言转换为能被51内核处理器识别的代码。

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