| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | WESTINGHOUSE | 型號(hào) | 1C31169G02 |
| 結(jié)構(gòu)形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | 產(chǎn)品認(rèn)證 | CQ |
| 環(huán)境溫度 | -40°至70°C | 環(huán)境濕度 | 5%-95%非冷凝 |
| 加工定制 | 否 | 重量 | 4磅 |
| 產(chǎn)地 | 美國(guó) | ||
WESTINGHOUSE 1C31169G02 串行鏈路控制
如果使用 Personality 模塊的 J2 RS-485/RS-422 Applications 端口 DB9 連接器代替基本單元端子塊，可以僅實(shí)現(xiàn)局部屏蔽接地。電纜組件金屬罩必須與電纜屏蔽層電氣接觸。如果需要并聯(lián)終端電阻，則必須在接線端子上添加跳線.急停按鈕連接PLC內(nèi)部CPU的內(nèi)部I/O接口上，當(dāng)按鈕給CPU一個(gè)外部觸發(fā)信號(hào)時(shí)，CPU對(duì)I/O進(jìn)行再次檢測(cè)，當(dāng)確認(rèn)有外部觸發(fā)信號(hào)時(shí)，CPU保護(hù)現(xiàn)場(chǎng)并將程序計(jì)數(shù)器自動(dòng)轉(zhuǎn)到相應(yīng)的外部I/O中斷程序中去，當(dāng)外部中斷程序處理完畢，程序計(jì)數(shù)器返回到主程序繼續(xù)工作。有一點(diǎn)可以說明的是我們一般會(huì)把急停按鈕的外部中斷升至級(jí)別，從而保證安全。
PLC還具有高級(jí)計(jì)數(shù)器的功能，當(dāng)我們?cè)诮邮芤恍└咚俚臄?shù)據(jù)時(shí)，這里所說的高速是在在微秒級(jí)的數(shù)據(jù)，比如條碼掃描機(jī)在不斷的掃描數(shù)據(jù)，數(shù)據(jù)處理器DSP計(jì)算的高速信號(hào)等，我們就要采用到高級(jí)計(jì)數(shù)器來幫助我們進(jìn)行計(jì)數(shù)。它在PLC執(zhí)行程序時(shí)一旦發(fā)現(xiàn)高級(jí)計(jì)數(shù)器對(duì)應(yīng)的中斷，就會(huì)立即放下手上的工作。經(jīng)過再次編程的梯形圖程序說明我們?cè)趫?zhí)行程序時(shí)高級(jí)計(jì)數(shù)器會(huì)自動(dòng)的執(zhí)行對(duì)應(yīng)的工作，從而將高級(jí)計(jì)數(shù)器的級(jí)別升至高一級(jí)別。
The emergency stop button is connected to the internal I / O interface of the CPU inside the PLC. When the button gives the CPU an external trigger signal, the CPU detects the I / O again. When the external trigger signal is confirmed, the CPU protects the site and automatically transfers the program counter to the corresponding external I / O interrupt program. When the external interrupt program is processed, the program counter returns to the main program to continue working. It can be explained that we generally raise the external interrupt of the emergency stop button to the highest level to ensure safety.
PLC also has the function of advanced counter. When we are receiving some high-speed data, the high-speed here is the microsecond data, such as the continuous scanning data of bar code scanner and the high-speed signal calculated by data processor DSP. We need to use advanced counter to help us count. When the PLC executes the program, once it finds the interrupt corresponding to the advanced counter, it will immediaby put down its work. The re programmed ladder program shows that when we execute the program, the advanced counter will automatically perb the corresponding work, so as to raise the level of the advanced counter to a higher level.
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