1756-L73

发布时间:2018-09-26

改变观念,就是改变可以改变的一切,适应不能改变的一切。改变观念,就是推陈出新,解放思想!

☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆






我不知道,你是否知道我的存在。


但我知道,我知道你的存在。


而且知道,你一直在寻找着我。


可我却没办法告诉你:我在这里。


只能祈祷上天让你感应到我的心跳,


让你回眸看看我清晰的脸庞。


我幻想着那一刻,


你一定倍感激动,而我已满脸泪痕。


等待,是个漫长的过程。


而我终于等到了你的回眸。


好想对你说,你知道我在等你吗?


等待着你需要我,等待着你找到我,


等待着,一直等待着。。。。。。


等待着你的 厦门仲鑫达自动化








☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆


 一个商人和两个学徒,赶着一只骆驼到外地去做买卖,骆驼背上载着许多上等的丝绸。


  不巧在半途中,骆驼突然死了,商人就把骆驼的皮剥下,然后吩咐学徒说:「你们要好好地看着骆驼皮,我去了就来。」


  交待完后,就赶到市镇上去,准备再买一只骆驼来载物品。


  没多久,乌云密布,下起倾盆大雨,学徒慌乱中不知所措,竟抽出上好的丝绸,盖在骆驼皮的上面,以防雨水浸湿了骆驼皮。


  商人回来,看到这情形,气得全身发抖地骂他们:「蠢东西!你们不识货吗?这丝绸的价值连城,竟被你们白白地糟蹋了。」


  启事:处事要懂得举一反三,闻一知十,不知变通会造成更大的损害。







☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆

       什么是PLC的响应时间?在输出采用循环刷新和直接刷新方式时,响应时间有何区别?

         从PLC收到一个输入信号到PLC向输出端输出一个控制信号所需的时间,就是PLC的响应时间,使用循环刷新时,在一个扫描周期的刷新阶段开始前瞬间收到一个信号,则在本周期内该信号就起作用了,这时响应时间短,等于输入延时时间、一个扫描周期时间、输出延迟时间三者之和;如果在一个扫描周期的I/O更新阶段刚过就收到一个信号,则该信号在本周期内不能起作用,必须等到下一个扫描周期才能起作用,这时响应时间长,它等于输入延迟时间、两个扫描周期时间与输出延迟时间三者之和;在使用直接输出刷新时,长响应时间等于输入延迟时间、一个扫描周期时间、输出延迟时间三者之和。






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Allen-Bradley 1771-P4S INPUT 


Allen Bradley 1771-SN SUB I/O 


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Allen Bradley Compact I/O 1769-OB16P Ser. B 16 PT. 


Allen Bradley Device Net 1732D-8X81212D Part Nr. 95320551 


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SYNRAD FENIX II CO2 Laser 


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HIWIN Rundtisch 7.R2013 / TMS3C-A00 1020663 


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Control Technique GPD3402 18,5KW SW: 03.01.07 


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BALDOR BTS10-1/2-24-RL-734 Id. ASR27930D 


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HERION 1022031 Pe 0-8 bar Pst 2-8 bar


KEB F5 23.F5.MAR-YU1A 75KW / 104 KVA 


National Instruments NI cRIO-9025 NI-9025 CompactRIO Controller+cRIO-9113 


Reliance Electric H-6100-Q-H00AA 


Reliance Electric S-6100-Q-H00AA 6063-03-802 


BALDOR DBSC2015-AAAW 28024F 


DITTEL Einbau-Wuchtkopf F22416 Part. Nr. 829-5-24 


Sepro S900-II 


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BALDOR BPS2100B 22477EA 


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