可编程序控制系统设计技术（FX系列）-畅读网

　　　　

可编程序控制系统设计技术（FX系列）

作者：吴启红

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计算机网络 >> 软硬件开发

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内容简介:

本书目的旨在让读者实现从入门到提高、精通PLC设计应用技术。全书共分12章，系统地介绍PLC的结构、工作原理、软件使用、PLC外部设备与PLC控制技巧、基本指令的编程技巧、功能指令的编程技巧、PLC通信技术、PLC过程控制设计技术、PLC运动控制设计技术、PLC综合设计技术等。全书配套工程案例40多个。

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SHOW FULL COLUMNS FROM `ls_goods_category` [ RunTime:0.003497s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.002410s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 2 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.002868s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 3 ORDER BY `sort` DESC [ RunTime:0.002248s ]
SHOW FULL COLUMNS FROM `ls_nav` [ RunTime:0.002912s ]
SELECT `id`,`name`,`pid`,`image`,`level`,`link`,`module`,`is_show`,`is_recommend` FROM `ls_nav` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.002668s ]
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SHOW FULL COLUMNS FROM `ls_friendly_link` [ RunTime:0.003522s ]
SELECT * FROM `ls_friendly_link` WHERE `is_show` = 1 AND `del` = 0 ORDER BY `id` DESC,`sort` DESC [ RunTime:0.002942s ]
SHOW FULL COLUMNS FROM `ls_goods` [ RunTime:0.003151s ]
SELECT * FROM `ls_goods` WHERE `id` = 138583 AND `status` = 1 LIMIT 1 [ RunTime:0.002388s ]
UPDATE `ls_goods` SET `click_count` = 71 , `update_time` = 1750942799 WHERE `id` = 138583 [ RunTime:0.003073s ]
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SELECT `id`,`name`,`pid`,`image`,`level`,`is_show`,`is_recommend` FROM `ls_goods_category` WHERE `is_show` = 1 AND `del` = 0 AND `level` = 1 ORDER BY `id` ASC,`sort` DESC [ RunTime:0.001100s ]
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SHOW FULL COLUMNS FROM `ls_ad` [ RunTime:0.003147s ]
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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 35 LIMIT 1 [ RunTime:0.002203s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.002985s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.002906s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1750942739 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:1.077952s ]

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