技(Ji)术(Shu)分(Fen)享(Xiang)
当(Dang)前(Qian)位(Wei)置(Zhi):(?)三(San)菱(Ling)PLC > 技(Ji)术(Shu)服(Fu)务(Wu) > 技(Ji)术(Shu)分(Fen)享(Xiang)三(San)菱(Ling)plc编(Bian)程(Cheng)的(De)七(Qi)项(Xiang)原(Yuan)则(Ze)
三(San)菱(Ling)plc编(Bian)程(Cheng)的(De)七(Qi)项(Xiang)原(Yuan)则(Ze)都(Du)有(You):(?)
1. 三(San)菱(Ling)plc梯(Ti)形(Xing)图(Tu)程(Cheng)序(Xu)必(Bi)须(Xu)符(Fu)合(He)顺(Shun)序(Xu)执(Zhi)行(Xing)的(De)原(Yuan)则(Ze),(?)即(Ji)从(Cong)左(Zuo)到(Dao)右(You),(?)从(Cong)上(Shang)到(Dao)下(Xia)执(Zhi)行(Xing),(?)如(Ru)不(Bu)符(Fu)合(He)顺(Shun)序(Xu)执(Zhi)行(Xing)的(De)电(Dian)路(Lu)不(Bu)能(Neng)直(Zhi)接(Jie)编(Bian)程(Cheng),(?)电(Dian)路(Lu)不(Bu)能(Neng)直(Zhi)接(Jie)编(Bian)程(Cheng)。(?)
2. 三(San)菱(Ling)PLC梯(Ti)形(Xing)图(Tu)每(Mei)一(Yi)行(Xing)都(Du)是(Shi)从(Cong)左(Zuo)母(Mu)线(Xian)开(Kai)始(Shi),(?)线(Xian)圈(Quan)接(Jie)在(Zai)最(Zui)右(You)边(Bian)。(?)
在(Zai)继(Ji)电(Dian)器(Qi)控(Kong)制(Zhi)原(Yuan)理(Li)图(Tu)中(Zhong),(?)继(Ji)电(Dian)器(Qi)的(De)触(Chu)点(Dian)可(Ke)以(Yi)放(Fang)在(Zai)线(Xian)圈(Quan)的(De)右(You)边(Bian),(?)但(Dan)在(Zai)梯(Ti)形(Xing)图(Tu)中(Zhong)触(Chu)点(Dian)不(Bu)允(Yun)许(Xu)放(Fang)在(Zai)线(Xian)圈(Quan)的(De)右(You)边(Bian)。(?)
3. 三(San)菱(Ling)PLC线(Xian)圈(Quan)不(Bu)能(Neng)直(Zhi)接(Jie)与(Yu)左(Zuo)母(Mu)线(Xian)相(Xiang)连(Lian),(?)也(Ye)就(Jiu)是(Shi)说(Shuo)线(Xian)圈(Quan)输(Shu)出(Chu)作(Zuo)为(Wei)逻(Luo)辑(Ji)结(Jie)果(Guo)必(Bi)须(Xu)有(You)条(Tiao)件(Jian)。(?)必(Bi)要(Yao)时(Shi)可(Ke)以(Yi)使(Shi)用(Yong)一(Yi)个(Ge)内(Nei)部(Bu)继(Ji)电(Dian)器(Qi)的(De)动(Dong)断(Duan)触(Chu)点(Dian)或(Huo)内(Nei)部(Bu)特(Te)殊(Shu)继(Ji)电(Dian)器(Qi)来(Lai)实(Shi)现(Xian)。(?)
4. 三(San)菱(Ling)PLC 同(Tong)一(Yi)编(Bian)号(Hao)的(De)线(Xian)圈(Quan)在(Zai)一(Yi)个(Ge)程(Cheng)序(Xu)中(Zhong)使(Shi)用(Yong)两(Liang)次(Ci)以(Yi)上(Shang)称(Cheng)为(Wei)双(Shuang)线(Xian)圈(Quan)输(Shu)出(Chu)。(?)双(Shuang)线(Xian)圈(Quan)输(Shu)出(Chu)容(Rong)易(Yi)引(Yin)起(Qi)误(Wu)操(Cao)作(Zuo),(?)这(Zhe)时(Shi)前(Qian)面(Mian)的(De)输(Shu)出(Chu)无(Wu)效(Xiao),(?)只(Zhi)有(You)最(Zui)后(Hou)的(De)输(Shu)出(Chu)才(Cai)有(You)效(Xiao)。(?)但(Dan)该(Gai)输(Shu)出(Chu)线(Xian)圈(Quan)对(Dui)应(Ying)触(Chu)点(Dian)的(De)动(Dong)作(Zuo),(?)要(Yao)根(Gen)据(Ju)该(Gai)逻(Luo)辑(Ji)运(Yun)算(Suan)之(Zhi)前(Qian)的(De)输(Shu)出(Chu)状(Zhuang)态(Tai)来(Lai)判(Pan)断(Duan)。(?)由(You)于(Yu)M1双(Shuang)线(Xian)圈(Quan)输(Shu)出(Chu),(?)所(Suo)以(Yi),(?)M1输(Shu)出(Chu)随(Sui)最(Zui)后(Hou)一(Yi)个(Ge)M1输(Shu)出(Chu)变(Bian)化(Hua),(?)Y1随(Sui)第(Di)一(Yi)个(Ge)M1线(Xian)圈(Quan)变(Bian)化(Hua),(?)而(?)Y2随(Sui)第(Di)二(?)个(Ge)M1输(Shu)出(Chu)变(Bian)化(Hua)。(?)所(Suo)以(Yi),(?)一(Yi)般(Ban)情(Qing)况(Kuang)下(Xia),(?)应(Ying)尽(Jin)可(Ke)能(Neng)避(Bi)免(Mian)双(Shuang)线(Xian)圈(Quan)输(Shu)出(Chu)。(?)
5. 三(San)菱(Ling)PLC梯(Ti)形(Xing)图(Tu)中(Zhong)串(Chuan)、(?)并(Bing)联(Lian)的(De)触(Chu)点(Dian)次(Ci)数(Shu)没(Mei)有(You)限(Xian)制(Zhi),(?)可(Ke)以(Yi)无(Wu)限(Xian)制(Zhi)的(De)使(Shi)用(Yong)。(?)

6. 三(San)菱(Ling)PLC外(Wai)部(Bu)输(Shu)入(Ru)/输(Shu)出(Chu)继(Ji)电(Dian)器(Qi)、(?)内(Nei)部(Bu)继(Ji)电(Dian)器(Qi)、(?)定(Ding)时(Shi)器(Qi)、(?)计(Ji)数(Shu)器(Qi)等(Deng)软(Ruan)元(Yuan)件(Jian)的(De)触(Chu)点(Dian)可(Ke)重(Zhong)复(Fu)使(Shi)用(Yong),(?)没(Mei)有(You)必(Bi)要(Yao)特(Te)意(Yi)采(Cai)用(Yong)复(Fu)杂(Za)程(Cheng)序(Xu)结(Jie)构(Gou)来(Lai)减(Jian)少(Shao)触(Chu)点(Dian)的(De)使(Shi)用(Yong)次(Ci)数(Shu)。(?)
7. 三(San)菱(Ling)PLC两(Liang)个(Ge)或(Huo)两(Liang)个(Ge)以(Yi)上(Shang)的(De)线(Xian)圈(Quan)可(Ke)以(Yi)并(Bing)联(Lian)输(Shu)出(Chu)。(?)
本(Ben)文(Wen)为(Wei)转(Zhuan)载(Zai),(?)原(Yuan)文(Wen)出(Chu)处(Chu):(?)http://www.dgjs123.com/sanlingplc/16363.htm相(Xiang)关(Guan)内(Nei)容(Rong)
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