3E 033204
3E 033204
3E 033204
1、主机
主机部分包括中央处理器（CPU）、系统程序存储器和用户程序及数据存储器。CPU是PLC的核心，它用以运行用户程序、监控输入/输出接口状态、作出逻 辑判断和进行数据处理，即读取输入变量、完成用户指令规定的各种操作，将结果送到输出端，并响应外部设备（如电脑、打印机等）的请求以及进行各种内部判断 等。PLC的内部存储器有两类，一类是系统程序存储器，主要存放系统管理和监控程序及对用户程序作编译处理的程序，系统程序已由厂家固定，用户不能更改； 另一类是用户程序及数据存储器，主要存放用户编制的应用程序及各种暂存数据和中间结果。
2、输入/输出（I/O）接口
I/O接口是PLC与输入/输出设备连接的部件。输入接口接受输入设备（如按钮、传感器、触点、行程开关等）的控制信号。输出接口是将主机经处理后的结果 通过功放电路去驱动输出设备（如接触器、电磁阀、指示灯等）。I/O接口一般采用光电耦合电路，以减少电磁干扰，从而提高了可靠性。I/O点数即输入/输 出端子数是PLC的一项主要技术指标，通常小型机有几十个点，中型机有几百个点，大型机将超过千点。
3、电源
图中电源是指为CPU、存储器、I/O接口等内部电子电路工作所配置的直流开关稳压电源，通常也为输入设备提供直流电源。
4、编程
编程是PLC利用外部设备，用户用来输入6FC5371-0AA30-0AA1
6FC5372-0AA30-0AA1
6FC5373-0AA30-0AA1
6FC5348-0AA07-0AA0
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E/R-Module 16 kW 6SN1111-0AA00-0BV0
E/R-Module 36 kW 6SN1111-0AA00-0CV0
E/R-Module 16 kW 6SN1111-0AA00-0BV1
E/R-Module 36 kW 6SN1111-0AA00-0CV1
E/R-Module 55 kW 6SN1111-0AA00-0DV0
E/R-Module 80 kW 6SN1111-0AA00-0EV0
E/R-Module 120 kW 6SN1111-0AA00-0FV0
UE-Modul 5 kW 6SN1111-0AA01-1BA1
UE-Modul 10 kW 6SN1111-0AA01-1AA1
UE-Modul 28 kW 6SN1111-0AA01-1CA1
E/R-Module 16 kW 6SN1111-0AA00-1BV0
E/R-Module 36 kW 6SN1111-0AA00-1CV0
E/R-Module 16 kW 6SN1111-0AA00-1BV1
E/R-Module 36 kW 6SN1111-0AA00-1CV1
E/R-Module 55 kW 6SN1111-0AA00-1DV0
E/R-Module 80 kW 6SN1111-0AA00-1EV0
E/R-Module 120 kW 6SN1111-0AA00-1FV0
E/R-Module 16 kW 6SL3060-1FE21-6AA0
E/R-Module 36 kW 6SN1162-0GA00-0CA0
E/R-Modul 16 kW 6SL3000-0BE21-6DA0
E/R-Modul 36 kW 6SL3000-0BE23-6DA0
E/R-Modul 55 kW 6SL3000-0BE25-5DA0
监控模块6SN1112-1AC01-0AA1
6SN1162-0BA04-0JA0
电压控制模块6SN1111-0AB00-0AA0
脉冲电阻模块6SN1113-1AB01-0AB1
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6SL3000-0DE21-6AA0
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6SN1113-1AA00-0DA0
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6SN1111-0AA00-1CV0
6SL3000-0DE23-6AA0
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6SN1111-0AA00-1BV1
6SL3000-0DE21-6AA0
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6SL3000-0BE23-6AA0
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6SN1111-0AA00-1EV0
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6SL3000-0DE28-0AA1
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6SN1113-1AA00-0DA0
