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關于OPC Router閾值觸發(fā)

閾值觸發(fā)（threshold trigger）是OPC標簽的數(shù)據(jù)值越限條件下執(zhí)行數(shù)據(jù)傳輸。

閾值觸發(fā)器不用于標簽在數(shù)據(jù)范圍內(nèi)的觸發(fā)。

閾值觸發(fā)器一般例如用于溫度。設置了一個溫度標簽，如果該值大于或等于30，則應觸發(fā)閾值觸發(fā)器?！爸刂糜|發(fā)點”功能是滯后功能。因此，如果該值再次等于或小于29.9，則會觸發(fā)閾值觸發(fā)器。

“重置觸發(fā)點(Reset Trigger at )”功能不是用于設定范圍功能。

配置界面如下圖：

所謂滯后功能，也即滯回控制/滯環(huán)控制。

這種控制一般是用作控制和抗干擾。比如空調(diào)設置一個溫度點，假設夏天溫度調(diào)在28度。當溫度低高28度時，就給空調(diào)加電，當溫度降到28以下，就斷電。如果沒有滯回比較器，溫度剛大于28度就加電，加電一會就低于28度了，就停機。這樣豈不是總在加電、停機之間動作嗎？每次加電功耗都會很大，還容易損壞電氣設備。但是如果給一個溫度范圍呢，比如高于28度加電，低于26度停機，這樣就會減少加電和斷電的次數(shù)。

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基本文件流程錯誤 SQL 調(diào)試

D:\wwwroot\mestime.com\index.php ( 0.50 KB )
D:\wwwroot\mestime.com\ThinkPHP\ThinkPHP.php ( 4.63 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Think.class.php ( 12.31 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Storage.class.php ( 1.38 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Storage\Driver\File.class.php ( 3.54 KB )
D:\wwwroot\mestime.com\ThinkPHP\Mode\common.php ( 2.82 KB )
D:\wwwroot\mestime.com\ThinkPHP\Common\functions.php ( 49.89 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Hook.class.php ( 4.02 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\App.class.php ( 13.50 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Dispatcher.class.php ( 14.84 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Route.class.php ( 13.37 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Controller.class.php ( 13.96 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\View.class.php ( 7.61 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\BuildLiteBehavior.class.php ( 3.69 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\ParseTemplateBehavior.class.php ( 3.89 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\ContentReplaceBehavior.class.php ( 1.91 KB )
D:\wwwroot\mestime.com\ThinkPHP\Conf\convention.php ( 11.18 KB )
D:\wwwroot\mestime.com\Web\Common\Conf\config.php ( 0.27 KB )
D:\wwwroot\mestime.com\function.php ( 57.71 KB )
D:\wwwroot\mestime.com\ThinkPHP\Lang\zh-cn.php ( 2.56 KB )
D:\wwwroot\mestime.com\ThinkPHP\Conf\debug.php ( 1.50 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Log.class.php ( 3.87 KB )
D:\wwwroot\mestime.com\Web\Home\Conf\config.php ( 0.65 KB )
D:\wwwroot\mestime.com\config.inc.php ( 4.65 KB )
D:\wwwroot\mestime.com\Web\Home\Common\function.php ( 0.04 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\ReadHtmlCacheBehavior.class.php ( 6.26 KB )
D:\wwwroot\mestime.com\Web\Home\Controller\ListController.class.php ( 3.87 KB )
D:\wwwroot\mestime.com\Web\Tool\TopController.class.php ( 0.20 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Template.class.php ( 28.22 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Template\TagLib\Cx.class.php ( 22.49 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Template\TagLib.class.php ( 9.19 KB )
D:\wwwroot\mestime.com\Web\Runtime\Cache\Home\c58d154b2fd2ffe72a17d5023ca7f72c.php ( 30.72 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Model.class.php ( 60.27 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Db.class.php ( 32.51 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Db\Driver\Mysql.class.php ( 10.63 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Cache.class.php ( 3.85 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Think\Cache\Driver\File.class.php ( 5.88 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\WriteHtmlCacheBehavior.class.php ( 0.98 KB )
D:\wwwroot\mestime.com\ThinkPHP\Library\Behavior\ShowPageTraceBehavior.class.php ( 5.25 KB )

SHOW COLUMNS FROM `tp_news` [ RunTime:0.000702s ]
SELECT `pid`,`ty`,`tty`,`ttty`,`title`,`seotitle`,`seokeywords`,`seodescription` FROM `tp_news` WHERE ( status=1 AND id=243 ) LIMIT 1 [ RunTime:0.000260s ]
SHOW COLUMNS FROM `tp_sort` [ RunTime:0.000624s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=8 ) LIMIT 1 [ RunTime:0.000089s ]
SHOW COLUMNS FROM `tp_sort` [ RunTime:0.000616s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=1 ) ORDER BY disorder asc,id asc [ RunTime:0.000129s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=2 ) LIMIT 1 [ RunTime:0.000075s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=2 ) ORDER BY disorder asc,id asc [ RunTime:0.000106s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=2 ) ORDER BY disorder asc,id asc [ RunTime:0.000082s ]
SHOW COLUMNS FROM `tp_news` [ RunTime:0.000673s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=2 AND ty=53 ) ORDER BY disorder desc,id desc LIMIT 0,8 [ RunTime:0.000705s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=2 AND ty=52 ) ORDER BY disorder desc,id desc LIMIT 0,8 [ RunTime:0.000533s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=2 AND ty=54 ) ORDER BY disorder desc,id desc LIMIT 0,8 [ RunTime:0.000502s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=15 ) LIMIT 1 [ RunTime:0.000118s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=3 ) ORDER BY disorder asc,id asc [ RunTime:0.000140s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=17 ) LIMIT 1 [ RunTime:0.000099s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=4 ) ORDER BY disorder asc,id asc [ RunTime:0.000131s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=22 ) LIMIT 1 [ RunTime:0.000095s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=5 ) ORDER BY disorder asc,id asc [ RunTime:0.000111s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=21 ) LIMIT 1 [ RunTime:0.000079s ]
SELECT `id`,`catname`,`outlinkurl`,`inlinkurl`,`img1`,`img2`,`seodescription`,`encatname`,`pid` FROM `tp_sort` WHERE ( status=1 and pid=6 ) ORDER BY disorder asc,id asc [ RunTime:0.000126s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=8 ) LIMIT 1 [ RunTime:0.000126s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=2 ) LIMIT 1 [ RunTime:0.000083s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=15 ) LIMIT 1 [ RunTime:0.000075s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=19 ) LIMIT 1 [ RunTime:0.000074s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=19 ) LIMIT 1 [ RunTime:0.000085s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=18 ) LIMIT 1 [ RunTime:0.000095s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=o ) LIMIT 1 [ RunTime:0.000184s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=22 ) LIMIT 1 [ RunTime:0.000103s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=23 ) LIMIT 1 [ RunTime:0.000125s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=21 ) LIMIT 1 [ RunTime:0.000086s ]
SELECT `img1` FROM `tp_sort` WHERE ( id=4 ) LIMIT 1 [ RunTime:0.000079s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=18 ) LIMIT 1 [ RunTime:0.000067s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=18 ) LIMIT 1 [ RunTime:0.000065s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND id=243 ) LIMIT 1 [ RunTime:0.000295s ]
SELECT COUNT(*) AS tp_count FROM `tp_news` WHERE ( status=1 AND id=243 ) LIMIT 1 [ RunTime:0.000163s ]
update tp_news set hits=hits+1 where id=243 [ RunTime:0.001487s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=18 ) LIMIT 1 [ RunTime:0.000071s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND id=243 ) LIMIT 1 [ RunTime:0.000187s ]
SELECT `id`,`title` FROM `tp_news` WHERE ( pid=4 and ty=18 and status=1 and id>243 ) ORDER BY disorder asc,id asc LIMIT 1 [ RunTime:0.000340s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND id=243 ) LIMIT 1 [ RunTime:0.000078s ]
SELECT `id`,`title` FROM `tp_news` WHERE ( pid=4 and ty=18 and status=1 and id<243 ) ORDER BY disorder asc,id desc LIMIT 1 [ RunTime:0.000341s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=8 ) LIMIT 1 [ RunTime:0.000085s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=10 ) LIMIT 1 [ RunTime:0.000092s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=11 ) LIMIT 1 [ RunTime:0.000092s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=12 ) LIMIT 1 [ RunTime:0.000113s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=2 ) LIMIT 1 [ RunTime:0.000093s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=15 ) LIMIT 1 [ RunTime:0.000071s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=17 ) LIMIT 1 [ RunTime:0.000083s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=17 ) LIMIT 1 [ RunTime:0.000064s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=22 ) LIMIT 1 [ RunTime:0.000073s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=39 ) LIMIT 1 [ RunTime:0.000067s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=7 AND ty=32 ) ORDER BY disorder desc,id desc LIMIT 0,6 [ RunTime:0.000388s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=43 AND ty=44 ) ORDER BY disorder desc,id desc LIMIT 0,1 [ RunTime:0.000428s ]
SELECT * FROM `tp_news` WHERE ( status=1 AND pid=43 AND ty=45 ) ORDER BY disorder desc,id desc LIMIT 0,1 [ RunTime:0.000413s ]
SELECT `inlinkurl` FROM `tp_sort` WHERE ( id=21 ) LIMIT 1 [ RunTime:0.000126s ]

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