A06B-0113-B079现货 in stock! 欢迎来电咨询~！！

A06B-0113-B079,

A06B-0113-B079

今天给我们说一个西门子事例——西门子S7-200SMART PLC怎样实现两灯交替闪耀

　　我们先来看看这个事例的具体要求：

　　运用定时器Q0.0和Q0.1，当按下发动按钮时Q0.0亮，1秒后Q0.0灭，同时Q0.1亮，再过两秒后Q0.1灭。以此循环，直到按下中止按钮，Q0.0和Q0.1全灭

　　首要画时序图。再用定时器加比较的办法会把很多杂乱的东西简单化

　　时序图便是表示地址或变量根据时刻的改变而改变的图形

　　整个占用的时刻为3秒，需要用到100毫秒定时器

　　设：定时器的当时值为X，0≦X﹤10的时候，Q0.0亮；当10≦X﹤30时，Q0.1亮。

　　接下来便是循环的问题，循环便是用最后一个状况作为第一个状况的发动条件。

　　定时器PT值为3秒(数值计作30)，运用TNO接通延时定时器，当当时值=设定值，状况输出为1时，即定时器状况位T37=1时，就去复位定时器，再从0开始，这个便是自复位，便是自己复位自己，到了3秒就从0开始。

　　最后整理下编写程序的思路：

　　1、 启停操控——输出发动标志位，输出为1，并保持(自锁)

　　2、 定时器操控——用发动标志位去接通定时器，让其作业

　　3、 比较——0-1秒Q0.0输出，1-3秒Q0.1输出

　　此外还有第二种办法哦，会运用到震荡电路(闪耀电路)以及两个定时器交替操控，一个操控接通时刻，一个操控断开时刻。

上亿库存，国内外近千个仓库，公司部分产品型号如下，欢迎联系哦~！

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1606-XLS960E-3 380 to 480VAC In 24 to 28VDC Out 960W PS

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193-T1AB10 0.75-1.0 A IEC Bimetallic Overload Relay

194L-HE4L-175I 194L Control and Load Switch Actuator

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20AB-DB1-A PowerFlex 70 Resistor Kit

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IC800SLCBVL100 Power/brake cable for SLM350 or SLM500 S-series servo motors with brake. 10 meters

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IC756WRE049E-23 DataViews Runtime for Windows 25-49, Per User, English, Version 2.3

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1492-SPM3B020-N MCB Supplementary Protector 2 A

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IC220MDL661 INPUT, 24VDC NEGATIVE LOGIC, 2PT (REQUIRES 1 IC220TBK082)

IC647DMC010 DataMart 10 Reporting Clients

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IC693MDL250 120 Vac Isolated Input (16 points). Module requires a terminal block IC694TBBx32 or IC693TBSx32).

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MSI-PROD-100 Product Management Clients 100 Pack

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QPJ-COS-201 MODULE CANOpen

STXPBS032 STXi Profibus with 24VDC sink (Positive Logic) input, 32 points, expandable to 8 additional modules.

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284D-FVD7P6Z-25-CR-DB-SB DeviceNet Variable Frequency Drive

E3X-ZA11 光纤放大器，晶体管输出，１００ＭＡ NPN，电源DC12-24V

1492-SPM1B130 MCB Supplementary Protector 13 A

直流电源 6EP1332-1SH42 100/240VAC 输入，24VDC/2.5A 输出

6ES78105CC000YM2

1497D-A12-M22-0-2 GEN PURPOSE TRANSFORMER

1606-XLSBUFFER48 Power Supply 48V DC Buffer Module

1769-L30ER CompactLogix 1 MB ENet Controller

190E-ANEJ1-CB25C 1.6-2.5 A Economy Starter W/Ckt-Bkr

194R-J60-1753S-PYN2 194R Disconnect Switch

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2090-XXNPT-16S15 TL-Series 15 m Length Power Cable

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IC200UAR014-24 Qty of 24, 14 point PLC, (8) 120VAC In, (6) Relay Out (2 at 10 amp & 4 at 2 amp), 120V/240VAC Power Supply

IC646TDV915 1500 I/O Point Development System

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IC693ALG223LT Analog Input, Current, 16 Single Channels (LT)

IC752DDZ000 New DataDesigner editor, supports DataPanels 20, 30, 40, 50, 60, 85, 1 50, 160 and 240

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