四、机型的选择

    (一)PLC的类型

    PLC按结构分为整体型和模块型两类，按应用环境分为现场安装和控制室安装两类；按CPU字长分为1位、4位、8位、16位、32位、64位等。从应用角度出发，通常可按控制功能或输入输出点数选型。

    整体型PLC的I/O点数固定，因此用户选择的余地较小，用于小型控制系统；模块型PLC提供多种I/O卡件或插卡，因此用户可较合理地选择和配置控制系统的I/O点数，功能扩展方便灵活，一般用于大中型控制系统。

备货，备货，降降降，火火火，火火火……

备货，备货，降降降，火火火，火火火……

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公司名称：厦门泰尼电气有限公司

：小廖（销售代表）

：

传真号码：（麻烦备注01008收）

号码:
：

诚信经营，质量为首，诚信*，泰尼电气小廖竭诚为您服务！！！

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