5X00594G01 EMERSON 输入输出模块 DCS卡件

5X00594G01 EMERSON 输入输出模块 DCS卡件

PLC控制系统设计的一般步骤可以分为以下几步:熟悉控制对象并计算输入输出设备、PLC选型及确定硬件配置、设计电气原理图、设计控制台(柜)、编制控制程序、程序调试和编制技术文件。  明确控制要求，了解被控对象的生产工艺过程熟悉控制对象设计工艺布置图这一步是 系统设计的基础。首先应详细了解被控对象的工艺过程和它对控制系统的要求，各种机械、液压、气动、仪表、电气系统之  间的关系，系统工作方式(如自动、半自动、手动等)， PLC 与系统中其他智能装置之间的关系，人机界面的种类，通信联网的方式，报警的种类与范围，电源停电及紧急情况的处理等等。

此阶段，还要选择用户  输入设备(按钮、操作开关、限位开关、传感器等)、输出设备(继电器、接触器、信号指示灯等执行元件)，以及由输出设备驱动的控制对象(电动机、电磁阀等)。同时，还应确定哪些信号需要输入给PLC,  哪些负载由PLC驱动，并分类统计出各输入量和输出量的性质及数量，是数字量还是模拟量，是直流量还是交流量，以及电压的大小等级，为PL .C的选型和硬件配置提供依据。

最后，将控制对象和控制功能进行分  类，可按信号用途或按控制域进行划分，确定检测设备和内容推荐PL C控制系统设计控制柜设计选择洛可可咨询与设计，创造好产品PLC控制系统设计，控制柜设计，LKK洛可可提供产品设计/工业设计/产品研发  设计洛可可17年成熟产品设计团队，选对专业公司，让您事半功倍。

5X00594G01 EMERSON 输入输出模块 DCS卡件

The general steps of PLC control system design can be divided into the following steps: familiar with the control object and calculate the input and output equipment, PLC selection and determine the hardware configuration, design the electrical schematic, design the console (cabinet), preparation of control programs, program debugging and preparation of technical documents. Clear control requirements, understand the production process of the controlled object familiar with the control object design process layout this step is the basis of system design. First of all, we should understand in detail the process of the controlled object and its requirements for the control system, the relationship between various mechanical, hydraulic, pneumatic, instrumentation, and electrical systems, the working mode of the system (such as automatic, semi-automatic, manual, etc.), the relationship between PLC and other intelligent devices in the system, the type of human-machine interface, the way of communication networking, the type and scope of alarm, and so on. Power outage and emergency treatment, etc.

At this stage, the user input device (button, operating switch, limit switch, sensor, etc.), the output device (relay, contactor, signal indicator, etc.), and the control object driven by the output device (motor, solenoid valve, etc.) are also selected. At the same time, it should also determine which signals need to be input to the PLC, which load is driven by the PLC, and classify the nature and quantity of each input and output, whether it is a digital quantity or an analog quantity, whether it is a direct flow or an AC quantity, and the size of the voltage level, to provide a basis for the selection and hardware configuration of PL.C.

Finally, the control object and control function are classified, can be divided according to the signal use or according to the control domain, determine the detection equipment and content recommended control system design control cabinet design choose Rococo consulting and design, create a good product PLC control system design, control cabinet design, LKK Rococo provides product design/Industrial design/Product research and development design Rococo 17 years of mature product design team, choose the right professional company, let you get twice the result with half the effort.