【正文】 基于 PLC 的聲光智能搶答器控制系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)目　　錄摘　　 要 .....................................................I1 PLC 聲光智能搶答器的介紹 ....................................1 PLC 聲光智能搶答器概述 ..................................1 PLC 智能搶答器的工作原理 ................................32 PLC 概述 ....................................................5 PLC 的定義、組成及特點(diǎn) ..................................5 PLC 工作原理 ...........................................11 PLC 的編程語言 .........................................12 PLC 的分類及性能指標(biāo) ...................................12 PLC 的用途 .............................................143 系統(tǒng)硬件設(shè)計(jì) ..............................................17 控制系統(tǒng)選取 ..........................................17 控制系統(tǒng)的硬件組成 ....................................18 系統(tǒng)控制要求 ..........................................19 控制系統(tǒng) I/O 分配表 ....................................20 系統(tǒng)硬件連接圖 ........................................224 系統(tǒng)軟件設(shè)計(jì) ..............................................24 整體設(shè)計(jì) ..............................................24 PLC 聲光智能搶答器控制程序梯形圖 .......................24 I5 模擬運(yùn)行與調(diào)試過程 ........................................30 程序的模擬運(yùn)行 ........................................30 程序的現(xiàn)場調(diào)試 ........................................32致 謝 ....................................................32參考文獻(xiàn) ....................................................29 II摘　　要本次設(shè)計(jì)是利用 PLC（Programmable Logic Controller）對(duì)六路聲光智能搶答器進(jìn)行控制?？紤]到只是對(duì)六組智能搶答器進(jìn)行控制，則輸入端口需要 10 個(gè)，輸出端口需要 30 個(gè)，所以需要有一個(gè) CPU226 的模塊和兩個(gè) EM222 數(shù)字量擴(kuò)展模塊，考慮到要實(shí)現(xiàn)聲光功能需要兩個(gè)喇叭和三個(gè)指示燈。由于搶答時(shí)要顯示組號(hào)和倒計(jì)時(shí)故還需要三個(gè)數(shù)碼管，以上的器件價(jià)格不貴并且容易買到，另外 PLC 具有可靠性高、體積小、通用性、使用方便等優(yōu)點(diǎn)，因此，我決定選用 SIMATIC S7200 系列的CPU226 和數(shù)字量擴(kuò)展模塊 EM222 作為本次設(shè)計(jì)的 PLC。另外，系統(tǒng)設(shè)計(jì)可分硬件設(shè)計(jì)和軟件設(shè)計(jì)，并采用手動(dòng)控制一種方式，具有方便靈活，維護(hù)使用方便等特點(diǎn)。PLC 智能搶答器以其結(jié)構(gòu)簡單、操作方便、安全可靠、造價(jià)低、發(fā)展前景廣闊、功能強(qiáng)大等優(yōu)點(diǎn)，在國內(nèi)市場占有絕對(duì)優(yōu)勢的市場份額并逐年成上升趨勢。搶答器廣泛用于電視臺(tái)、商業(yè)機(jī)構(gòu)及學(xué)校，為競賽增添了刺激性、娛樂性，在一定程度上豐富了人們的業(yè)余生活。搶答器在競賽中能準(zhǔn)確、公正、直觀地判斷出第 1 搶答者。通過搶答器的指示燈顯示、數(shù)碼顯示和警示蜂鳴等手段指示出第 1 搶答者。如果對(duì)外部電路稍加修改，或者在系統(tǒng)程序中加入分支，可以把六路搶答器改為更多路的搶答器。如果去除系統(tǒng)中的互鎖和限時(shí)功能，可以把搶答器改為呼叫器，能夠用在醫(yī)院病房、賓館客房、寫字樓辦公室、工廠生產(chǎn)車間等多種地方。 III關(guān)鍵詞：智能搶答，聲光顯示， PLC，自動(dòng)控制 Abstract This design is the use of PLC (Programmable Logic Controller) on the sixway Responder Smart sound and light control. Taking into account only six groups of control smart Responder, enter the port need 10 output ports need to be 30, so the need for a CPU226 module and two EM222 digital expansion module, taking into account the need to achieve the sound and light features two A speaker and three indicators. When the answer in the countdown to display group number, and it also requires three digital control, these inexpensive and readily available device, another PLC with high reliability, small size, versatility, ease of use, so I decided to SIMATIC S7200 series use the CPU226 and digital extension module EM222 designed for this PLC. In addition, the system can be divided into hardware and software design, and a way of using manual control, with convenience, flexibility and easy maintenance features. PLC intelligent Responder its simple structure, easy operation, safe, reliable, low cost and broad development prospects, powerful, etc., has an absolute advantage in the domestic market share and the market tended to increase year by year. Responder is widely used in television, mercial IVanizations and schools for the petition has added exciting, enterta