1746-RT25B產(chǎn)品說明:
1746-RT25B
PLC編程 1、交通控制程序 交通控制程序負(fù)責(zé)讀取車輛檢測器、車道指示標(biāo)志、情報(bào)板的狀態(tài)及信息,并將數(shù)據(jù)傳遞給上位機(jī)。根據(jù)上位機(jī)上設(shè)定的交通模式,控制車道指示標(biāo)志和交通信號燈的狀態(tài)。并根據(jù)上位機(jī)設(shè)置的狀態(tài)及信息。實(shí)現(xiàn)對車輛檢測器、車道指示標(biāo)志、情報(bào)板、交通信號燈的控制。在發(fā)生通信故障時(shí),產(chǎn)生報(bào)警信號。定時(shí)給車輛檢測器校時(shí),以保證車輛檢測器時(shí)間的一致性。 車道指示標(biāo)志和交通信號燈的狀態(tài)的控制方式有以下三級控制: ——監(jiān)控分中心:自動控制(上位機(jī))、人工遠(yuǎn)程控制(上位機(jī)、觸摸屏) ——隧道監(jiān)控室:人工控制(觸摸屏) ——現(xiàn)場設(shè)備: 人工手動控制 正常情況下,車道指示標(biāo)志和交通信號燈的狀態(tài)由監(jiān)控分中心的上位機(jī)控制,在上位機(jī)出現(xiàn)故障時(shí),可通過監(jiān)控分中心的觸摸屏進(jìn)行控制。若監(jiān)控分中心至隧道設(shè)備室的通信出現(xiàn)故障,則改由隧道設(shè)備室的觸摸屏進(jìn)行控制。 交通控制流程圖
2、通風(fēng)控制程序 通風(fēng)控制程序根據(jù)檢測到的透過率、CO濃度數(shù)據(jù)、交通量數(shù)據(jù),控制風(fēng)機(jī)的運(yùn)行臺數(shù)、風(fēng)向和運(yùn)行時(shí)間,實(shí)現(xiàn)節(jié)能運(yùn)行和保持風(fēng)機(jī)較佳壽命的控制運(yùn)行;并在發(fā)生火災(zāi)時(shí),根據(jù)不同地點(diǎn),進(jìn)行相應(yīng)的火災(zāi)排煙處理,以保證隧道的安全及運(yùn)行環(huán)境的舒適性。 通風(fēng)控制程序?qū)崿F(xiàn)風(fēng)機(jī)正轉(zhuǎn)、反轉(zhuǎn)、停機(jī)控制,并將每臺風(fēng)機(jī)的狀態(tài)(正轉(zhuǎn)、反轉(zhuǎn)、停機(jī))、自動手動狀態(tài)顯示、總故障信號傳給上位機(jī)。自動統(tǒng)計(jì)風(fēng)機(jī)運(yùn)行時(shí)間,累計(jì)運(yùn)行時(shí)間最短的風(fēng)機(jī)優(yōu)先啟動,以便平衡各臺風(fēng)機(jī)的勞逸程度,延長風(fēng)機(jī)的使用壽命。 自動根據(jù)CO濃度、透過率值、交通量狀況、火災(zāi)報(bào)警等綜合情況控制風(fēng)機(jī)的運(yùn)行。每臺風(fēng)機(jī)啟動需短暫延時(shí),才允許其它風(fēng)機(jī)啟動,以減少對變電站供電的沖擊。 通風(fēng)控制子系統(tǒng)控制方式可以有如下四級: ——監(jiān)控分中心:自動控制、人工遠(yuǎn)程控制 ——隧道監(jiān)控室:自動控制、人工控制 ——隧道變電所:人工手動控制 ——通風(fēng)機(jī)開關(guān)箱:人工手動控制 正常情況下將隧道變電所的風(fēng)機(jī)控制轉(zhuǎn)換開關(guān)置于“自動”位,由監(jiān)控分中心實(shí)現(xiàn)通風(fēng)控制子系統(tǒng)的監(jiān)控,自動完成子系統(tǒng)的各項(xiàng)功能。系統(tǒng)在故障或需要時(shí)經(jīng)過轉(zhuǎn)換應(yīng)在前三級的任一級上維持系統(tǒng)的正常運(yùn)行。在對通風(fēng)設(shè)備和通風(fēng)控制子系統(tǒng)需要進(jìn)行維修和測試時(shí)則可以采取隧道監(jiān)控室人工、變電所人工、通風(fēng)機(jī)就地開關(guān)箱處人工控制的方式。
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