1.plc:可(ke)(ke)(ke)依(yi)据工(gong)程需(xu)(xu)求(qiu)(qiu)来选择不同(tong)类型。若是(shi)工(gong)程比(bi)较大体模(mo)块、卡件式的(de)(de)(de)(de)(de)，若工(gong)程较小，则可(ke)(ke)(ke)以直接选用(yong)(yong)一(yi)(yi)个(ge)(ge)一(yi)(yi)体化的(de)(de)(de)(de)(de)plc.plc操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)可(ke)(ke)(ke)完结设备自动化和(he)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)自动化，实(shi)现(xian)网络功能(neng)，性能(neng)稳定(ding)，抗干扰强(qiang)，可(ke)(ke)(ke)拓宽(kuan)等多个(ge)(ge)优点(dian)的(de)(de)(de)(de)(de)统(tong)一(yi)(yi)，可(ke)(ke)(ke)称为现(xian)代工(gong)业的(de)(de)(de)(de)(de)魂(hun)灵和(he)中(zhong)心。也(ye)可(ke)(ke)(ke)搭配人机(ji)触摸(mo)屏，实(shi)现(xian)轻松化的(de)(de)(de)(de)(de)操(cao)(cao)(cao)(cao)作(zuo)。2.空(kong)开(kai)：一(yi)(yi)个(ge)(ge)总的(de)(de)(de)(de)(de)空(kong)气(qi)开(kai)关。起整(zheng)个(ge)(ge)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)源(yuan)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)作(zuo)用(yong)(yong)。这也(ye)是(shi)每个(ge)(ge)电(dian)(dian)(dian)(dian)(dian)气(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)都必(bi)须有的(de)(de)(de)(de)(de)一(yi)(yi)个(ge)(ge)东西。3.接线端子:这也(ye)是(shi)每个(ge)(ge)电(dian)(dian)(dian)(dian)(dian)气(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)柜(ju)(ju)(ju)的(de)(de)(de)(de)(de)必(bi)有物，可(ke)(ke)(ke)依(yi)据信(xin)号数(shu)量进(jin)行配置。假如(ru)只是(shi)个(ge)(ge)单一(yi)(yi)的(de)(de)(de)(de)(de)plc操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)只需(xu)(xu)求(qiu)(qiu)这些(xie)东西，其他杂乱的(de)(de)(de)(de)(de)情况依(yi)据实(shi)践来增加。4.继电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi):操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)中(zhong)心的(de)(de)(de)(de)(de)中(zhong)转器(qi)(qi)(qi)(qi)。即当plc输(shu)出口所带的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)与(yu)所需(xu)(xu)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)回路里plc的(de)(de)(de)(de)(de)节点(dian)不合(he)时，别的(de)(de)(de)(de)(de)需(xu)(xu)求(qiu)(qiu)在(zai)plc输(shu)出口上(shang)(shang)加上(shang)(shang)个(ge)(ge)继电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，宣布指(zhi)令时继电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)启动，然(ran)后让操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)回路的(de)(de)(de)(de)(de)节点(dian)接到(dao)继电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)常(chang)开(kai)或常(chang)闭点(dian)上(shang)(shang)。也(ye)可(ke)(ke)(ke)依(yi)据需(xu)(xu)求(qiu)(qiu)来决(jue)议是(shi)否需(xu)(xu)求(qiu)(qiu)使用(yong)(yong)继电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)。电(dian)(dian)(dian)(dian)(dian)气(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)功能(neng)主(zhu)要是(shi)接收液(ye)(ye)(ye)位操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)液(ye)(ye)(ye)所输(shu)出的(de)(de)(de)(de)(de)凹凸(tu)水位操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)的(de)(de)(de)(de)(de)信(xin)号，操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)液(ye)(ye)(ye)泵电(dian)(dian)(dian)(dian)(dian)动机(ji)的(de)(de)(de)(de)(de)自开(kai)启与(yu)中(zhong)止，其操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)方式也(ye)多种多样(yang)。一(yi)(yi)起，也(ye)需(xu)(xu)对电(dian)(dian)(dian)(dian)(dian)气(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)器(qi)(qi)(qi)(qi)进(jin)行合(he)理(li)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)工(gong)艺(yi)规划。为了电(dian)(dian)(dian)(dian)(dian)气(qi)操(cao)(cao)(cao)(cao)控(kong)(kong)(kong)(kong)(kong)柜(ju)(ju)(ju)的(de)(de)(de)(de)(de)检查与(yu)调理(li)，经常(chang)要把需(xu)(xu)调理(li)、维护(hu)的(de)(de)(de)(de)(de)元件都组(zu)合(he)在(zai)一(yi)(yi)起，且在(zai)配备时要注明(ming)配作(zuo)方式，柜(ju)(ju)(ju)、箱(xiang)的(de)(de)(de)(de)(de)资(zi)料一(yi)(yi)般(ban)选用(yong)(yong)柜(ju)(ju)(ju)、箱(xiang)专(zhuan)用(yong)(yong)资(zi)料。