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A20B-1003-0250現(xiàn)貨 in stock! 歡迎來電咨詢~??！

A20B-1003-0250,

A20B-1003-0250

今天給我們說一個西門子事例——西門子S7-200SMART PLC怎樣實現(xiàn)兩燈交替閃耀

　　我們先來看看這個事例的具體要求：

　　運用定時器Q0.0和Q0.1，當按下發(fā)動按鈕時Q0.0亮，1秒后Q0.0滅，同時Q0.1亮，再過兩秒后Q0.1滅。以此循環(huán)，直到按下中止按鈕，Q0.0和Q0.1全滅

　　首要畫時序圖。再用定時器加比較的辦法會把很多雜亂的東西簡單化

　　時序圖便是表示地址或變量根據(jù)時刻的改變而改變的圖形

　　整個占用的時刻為3秒，需要用到100毫秒定時器

　　設：定時器的當時值為X，0≦X﹤10的時候，Q0.0亮；當10≦X﹤30時，Q0.1亮。

　　接下來便是循環(huán)的問題，循環(huán)便是用最后一個狀況作為第一個狀況的發(fā)動條件。

　　定時器PT值為3秒(數(shù)值計作30)，運用TNO接通延時定時器，當當時值=設定值，狀況輸出為1時，即定時器狀況位T37=1時，就去復位定時器，再從0開始，這個便是自復位，便是自己復位自己，到了3秒就從0開始。

　　最后整理下編寫程序的思路：

　　1、 啟停操控——輸出發(fā)動標志位，輸出為1，并保持(自鎖)

　　2、 定時器操控——用發(fā)動標志位去接通定時器，讓其作業(yè)

　　3、 比較——0-1秒Q0.0輸出，1-3秒Q0.1輸出

　　此外還有第二種辦法哦，會運用到震蕩電路(閃耀電路)以及兩個定時器交替操控，一個操控接通時刻，一個操控斷開時刻。

上億庫存，國內(nèi)外近千個倉庫，公司部分產(chǎn)品型號如下，歡迎聯(lián)系哦~！

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150-F201NBDD SMC Flex Smart Motor Controller

1732D-IBDPM12MND ArmorBlock 16 Point Input Block

1771-OR 1771 6 Point Digital Output Module

193-ED1EP E1 Plus 5.4-27 A IEC Overload Relay

199-FSMA2 Industrial Relay R-C Surge Suppressor

2090-CPWM7DF-08AA05 MP-Series 5m Standard Power Cable

2094-XL75S-C2 Kinetix 6000 Line Interface Module

EDS-205 Industrial 5-port Unmanaged 10/100 Switch (-10 to 60 deg c op temp)

GFK-1179 Installation Requirements for Conbance to Standards

IC220ACC002 MODULE LABELS WIDE, QTY 10

IC647BSU010 Batch Server Pak Upgrade (5 to 10 Units)

IC647PRTHE050C Proficy Portal Historian Edition Client Pack 50 Users (M1 Key)

IC693CPU364RR CPU364 Module (240K Bytes configurable user memory), Embedded Ethernet

IC756ADV000J-99 DV Development - AIX Op Sys, Japanese, Version 9.9

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SLC/1746 System 1746-RT25G REPLACEMENT TERMINAL BLOCK (GREEN)

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