2711P-RDT15C罗克韦尔AB触摸屏

2711P-RDT15C罗克韦尔AB触摸屏

编程容易。PLC的编程多采用继电器控制梯形图及命令语句，其数量比微型机指令要少得多，除中、PLC外，一般的小型PLC只有16条左右。由于梯形图形象而简单，因此容易掌握、使用方便，甚至不需要计算机知识，就可进行编程。

组态灵活。由于PLC采用积木式结构，用户只需要简单地组合，便可灵活地改变控制系统的功能和规模，因此，可适用于任何控制系统。

市场上新型变频器都内置了接口，同时提供多种相互兼容的通信接口，支持多种通信协议，同时可以通过连接计算机，由计算机键盘来控制和操作变频器，并且可与多种现场总线进行联网通信，可以实现多台变频器联动，甚至是以工厂为单位的变频器综合管理控制系统。

Easy to program. PLC programming uses relay control ladder diagram and command statements, the number is much less than the microcomputer instructions, in addition to the PLC, the general small PLC only about 16. Because the ladder diagram is simple and simple, it is easy to master and easy to use, and it can be programmed without computer knowledge.

Flexible configuration. Because the PLC adopts the building block structure, the user only needs to simply combine, and can flexibly change the function and scale of the control system, so it can be applied to any control system.

The new inverter on the market has a built-in interface, while providing a variety of compatible communication interfaces, support a variety of communication protocols, and can be connected to the computer, by the computer keyboard to control and operate the inverter, and can be networked with a variety of fieldbus communication, can achieve multiple frequency converter linkage, and even a factory unit inverter integrated management control system.