求英文翻译

Question

在本次的控制系统设计中，选用在大中型控制系统中使用很广泛的西门子S7-300系列PLC。通过对同类型研磨机的结构、工作原理进行类比，确定系统的工作流程。对于硬件设计部分，根据控制要求选出系统需要的外部元件，如电动机、变频器、传感器等。然后对PLC进行组件，选出适合的电源模块、CPU模块和信号模块，并进行参数设置。对于软件设计部分，使用 STEP 7 v 5.4软件进行程序梯形图的编写。对程序的结构采用模块化的设计思路，将不同元件的控制分类，分别由调用不同的功能块实现对系统的控制。软件设计完成后使用S7-PLCSIM进行仿真调试，来进一步修正和完善控制程序。

Answer 1

In this control system design, selection of control systems in large and medium used in a wide range of Siemens S7-300 series PLC. Through the structure of the same type of grinding machine, the working principle of analogy, to determine the system's workflow. For the hardware design part of the system needs to be elected under the control requirements of the external components, such as motor, inverter, sensors. Then the components of the PLC to select the appropriate power supply module, CPU module and signal module, and set parameters. For software design, the use of STEP 7 v 5.4 software for the preparation of the ladder program. Modular structure of the program's design ideas, will control the classification of the different components, respectively, by calling a different function block to realize the system control. Software design is complete, the simulation using the S7-PLCSIM debugging, to further amend and improve the control procedures

Answer 2

是：In this control system design, selection of control systems in large and medium used in a wide range of Siemens S7-300 series PLC. Through the structure of the same type of grinding machine, the working principle of analogy, to determine the system's workflow. For the hardware design part of the system needs to be elected under the control requirements of the external components, such as motor, inverter, sensors. Then the components of the PLC to select the appropriate power supply module, CPU module and signal module, and set parameters. For software design, the use of STEP 7 v 5.4 software for the preparation of the ladder program. Modular structure of the program's design ideas, will control the classification of the different components, respectively, by calling a different function block to realize the system control. Software design is complete, the simulation using the S7-PLCSIM debugging, to further amend and improve the control procedures.

Answer 3

In the control system design, selection of large and medium-sized control system used in a wide range of Siemens s7-300 PLC. Through the same type of grinding machine structure, working principle, determine the analogy work flow of the system. For hardware design part, according to the control requirements of the system needs to choose external components, such as motor, frequency converter, sensors, etc. And then the components of PLC, elected for power module, the CPU module and signal module, and the parameters Settings. The software design part, use STEP 7 v 5.4 software process ladder diagram of writing. The structure of the program of the modular design, will be different components of the control classification, respectively by different function blocks called realize to the system control. After the completion of the software design using s7-PLCSIM simulation test, to further correction and perfect control procedures.