西门子plc 4路模拟量 模块 em231 接线图

我有两个输入信号 都是4~20mA 的电流信号 ,求怎么接线
2024-11-20 03:52:22
推荐回答(5个)
回答1:

模拟量输入模块可以通过拨码开关设置为不同的测量方法,开关的设置应用于整个模块,一个模块只能设置为一个测量范围,开关设置只有在重新上电后才能生效。

现场温度传感器采集的的温度信号、温控开关开度反馈的信号等这种没有间断点的模拟量信号通过信号线->模拟量输入模块(有远程的有本地的)输入点->PLC的CPU执行程序->输出使能信号->模拟量输出模块->信号线->调节温控阀开度实现对现场温度的闭环控制。

几路说的是模块上的输入输出点,与之对应的是数字量就是开关量就是现场数字量输入输出模块,常见的数字量有气动阀门的开关(只有两个状态开和闭)机器人里面的微阀(无论是换色模块还是雾化器)或是纳诺阀、高速阀、接近开关、拨档开关等。

扩展资料:

注意事项:

1、对PLC本身应按规定的接线标准和接地条件进行接地,而且应注意避免和变频器使用共同的接地线,且在接地时使两者尽可能分开。

2、当电源条件不太好时,应在PLC的电源模块及输入/输出模块的电源线上接人噪声滤波器和降低噪声用的变压器等,另外若有必要,在变频器一侧也应采取相应的措施。

3、当把变频器和PLC安装于同一操作柜中时,应尽可能使与变频器有关的电线和与PLC有关的电线分开。

4、通过使用屏蔽线和双绞线达到提高噪声干扰的水平。

参考资料来源:百度百科-模拟量

参考资料来源:百度百科-西门子PLC

参考资料来源:百度百科-接线图

参考资料来源:百度百科-模块

回答2:

如图所示

注意事项:

模拟量输入模块可以通过拨码开关设置为不同的测量方法;开关的设置应用于整个模块,一个模块只能设置为一个测量范围;开关设置只有在重新上电后才能生效。

西门子PLC简介:

西门子PLC,是德国西门子(SIEMENS)公司生产的可编程序控制器,产品包括LOGO、S7-200、S7-1200、S7-300、S7-400等,具备体积小、速度快、标准化的特点,PLC可分为微型PLC(如S7-200),小规模性能要求的PLC(如S7-300)和中、高性能要求的PLC(如S7-400)等。PLC采用梯形图、布尔助记符、功能表图、功能模块和语句描述编程语言,其不需要大量的活动元件和连线电子元件,编程简单,有较高的易操作性,能自动诊断,维修容易。

回答3:

如图所示

回答4:

RC/C+ 与 C- 连接的是4(3)线制的 电流输出型的传感器
RD/D+ 与 D- 连接的是 2线制电流输出的传感器
所以接线方法有所不同啊

=============================================
软件开发(VB / VC++/PLC/组态软件)、单片机设计
松下伺服 PLC, 西门子 触摸屏 PLC 变频器,三菱 PLC、PRO-FACE触摸屏
FX1N FX2N /
CPU224 CPU226 CPU313 CPU314 CPU315, SMART 1000

回答5:

“M端”加“I 端”就可以

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