PLC模塊6ES7461-1BA01-0AA0中央耦合帶SV接口模塊介紹

PLC模塊6ES7461-1BA01-0AA0 中央耦合帶SV接口模塊介紹
西門子6ES7461-1BA01-0AA0 -參數(shù)介紹通信 “經(jīng)濟(jì)的方式就是采用PP協(xié)議和自由口通信協(xié)議。對(duì)于S7 -200之間進(jìn)行通信，PP
協(xié)議又更適合一它比自由口通信的編程更簡(jiǎn)單 !下面就對(duì)這個(gè)PP通信進(jìn)行說明一以2臺(tái)S7-200通信為例 ,做一個(gè)實(shí)例。
設(shè)備配置: 1臺(tái)S7-200 CPU 226CN的PLC、1臺(tái)S7-200 CPU 224XP的PLC
硬件連接:原則上需要配備1條紫色的Profbus電纜、2個(gè)黑色的Profbus-DP接頭。 如果需要在PLC通信時(shí)對(duì)有在線的PLC進(jìn)行監(jiān)
控/編程操作而不占用另外的通信口(也就是說,假如有PLC用端口PROT1進(jìn)行PPI通信,而現(xiàn)在要對(duì)有PLC依次編程/監(jiān)控,但
又不想占用這些PLC的端C JPROTO--端口PROT0可能已作它用 ) , 那么在其中1臺(tái)PLC采用帶編程口的Profibus-DP接
頭。以說，帶編程口的Profibus-DP接頭在整個(gè)網(wǎng)絡(luò)中只需要一個(gè)就可以了。 這樣,也就可以在某一臺(tái)PLC處對(duì)在網(wǎng)的其它PLC
進(jìn)行編程/監(jiān)控。
PLC模塊6ES7461-1BA01-0AA0 中央耦合帶SV接口模塊介紹
PLC模塊6ES7461-1BA01-0AA0 中央耦合帶SV接口模塊介紹
引腳分配:
S7 - - 200 CPU上的通訊端口是符合歐洲標(biāo)準(zhǔn)EN 50170中PROFIBUS標(biāo)準(zhǔn)的RS - - 485兼容9針D型連接器。 下表列出了
為通訊端口提供物理連接的連接器,并描述了通訊端口的針腳分配。下面是S7-200的通信接口一- _D型9孔母頭的引腳定義。
網(wǎng)絡(luò)電纜的偏壓電阻和終端電阻
為了能夠把多個(gè)設(shè)備很容易地連接到網(wǎng)絡(luò)中,西門子公司提供兩種網(wǎng)絡(luò)連接器: -種標(biāo)準(zhǔn)網(wǎng)絡(luò)連接器(引腳分配如表7-7示)和
-種帶編程接口的連接器,后者允許您在不影響現(xiàn)有網(wǎng)絡(luò)連接的情況下,再連接-個(gè)編程站或者一個(gè)HMI設(shè)備 到網(wǎng)絡(luò)中。帶編程
接口的連接器將S7- - 200的有信號(hào)(包括電源引腳)傳到編程接口。這種連接器對(duì)于那些從S7 - - 200取電源的設(shè)備(例如TD
200 )尤為有用。兩種連接器都有兩組螺釘連接端子，可以用來連接輸入連接電纜和輸出連接電纜。 兩種連接器也都有網(wǎng)絡(luò)偏置
和終端匹配的選擇開關(guān)。典型的網(wǎng)絡(luò)連接器偏置和終端如圖示:
... . ..處于中間節(jié)點(diǎn)的從站在不工作時(shí)可以斷電。
西門子plc有幾種模塊組成?
CPU模塊,輸入模塊,輸出模塊,電源模塊,溫度檢測(cè)模塊,位置檢測(cè)模塊, PID控制模塊,通訊模塊等
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