描述
模塊初始上電時,數(shù)據(jù)存儲區(qū)初始化為0。每個采樣周期內,當有DI通道發(fā)生狀態(tài)變化時,上報數(shù)據(jù)包流水號自動加1。如果無通道跳變,則上報數(shù)據(jù)流水號不變??刂破髦芷谛缘貜腄P主站讀取數(shù)據(jù),并將本周期的數(shù)據(jù)包流水號與保存的上一周期數(shù)據(jù)包流水號進行對比。按流水號的差值,控制器處理相應周期次數(shù)的DI采集數(shù)據(jù),如果差值等于0,則直接丟棄。以6通道DI信號為例,假設模塊每30 ms采集一次數(shù)據(jù),在開始工作60 ms后所有通道狀態(tài)的當前值為000000(二進制),發(fā)生跳變的通道值為000000(有通道發(fā)生跳變則將該通道置為1),該周期的采集數(shù)據(jù)為60、000000、000000;90 ms采集時通道0跳變?yōu)闋顟B(tài)1,則所有通道狀態(tài)的當前值為000001,發(fā)生跳變的通道值為000001;120 ms采集時通道1、2、3跳變?yōu)闋顟B(tài)1,則所有通道狀態(tài)的當前值為001111,發(fā)生跳變的通道值為001110;150 ms采集時通道4、5跳變?yōu)闋顟B(tài)1,則所有通道狀態(tài)的當前值為111111,發(fā)生跳變的通道值為110000;之后信號無變化。在150 ms時刻形成的數(shù)據(jù)包(十進制)
主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產品》
②Schneider(施耐德電氣)系列產品》
③General electric(通用電氣)系列產品》
④Westinghouse(美國西屋)系列產品》
⑤SIEMENS(西門子系列產品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結構的zui現(xiàn)代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅動模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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