电编程控制器应模拟试卷答案
填空题（空2分30分）
1 PLC输入输出继电器采 进制进行编号软元件均采 进制进行编号(八 十)
2 PLC状态元件中 初始状态(S2～S9)
3 描述PLC技术指标 特殊功模块六种
(IO总点数 存储容量 扫描速度 部寄存器 编程语言指令系统)
4 PLC输出形式 输出 输出 输出三种(继电器 晶体 晶闸)
5 说明列指令意义
MOV RST
ORB LD
(数传送指令 复位指令 串联电路块联指令 取指令)
6编程序控制器采微处理器作中央处理单元 进行控制 进行控制 (逻辑量 模拟量)
7PLC具逻辑运算功够描述继电器触点 等种连接(串联 联)
8PLC具 功完成模拟量控制调节(模数转换（AD转换） 数模转换（DA转换）
9结构形式分类PLC分 式 式两种(整体式 模块式)
10 模块编程序控制器系统运算控制核心(CPU)
11 安装编程控制器类模板机架根实际需选择(导轨)
12 模板PLC部电路供电(电源)
13 输入端电压电流信号转换成微处理器接收低电信号(输入电压转换)
14输出电转换 控制低电信号转换控制设备需电压电流信号(微处理器)
15 微处理器IO回路间采防干扰措施(电气隔离)
16S7300S4400通 接口组成PLC网络点接口（MPI）
17MPI 简称MPI网采 通信模式（点接口 全局数（GD））
18全局数（GD）通信方式 分支网基础循环传送少量数设计（点接口（MPI））
19 通信方式MPI分支网基础循环传送少量数设计（全局数（GD））
20编程序控制器系统中站间通信方式 站站间 两种方式混合（令牌方式 方式）
21PROFIBUS网络 站 等构成（站 网络部件）
22DCS 简称单回路仪表控制系统发展起（集散控制系统）
二简答题（题5分20分）
1 简述PLC硬件结构软件系统
1答： PLC采典型计算机结构硬件微处理器（CPU）存储器采扫描工作方式IO接口电路电源等组成PLC软件系统系统程序应程序组成
2 什扫描工作方式？什扫描周期？受影响？
2 答：计算机系统样PLCCPU采分时操作原理时刻执行操作着时间延伸动作接动作序进行种分时操作进程称CPU程序扫描PLC户程序干条指令组成指令存储器中序号序排列CPU第条指令开始序逐条执行户程序直户程序结束然返回第条指令开始新轮扫描PLC扫描工作方式
执行户程序外次扫描程中完成输入输出处理等工作扫描次时间称扫描周期扫描周期长短首先条指令执行时间长短关次指令类型包含指令条数少关
3 编程控制器梯形图编程规容什？
3 答：梯形图程序编程基原包括：
（1）梯形图中阶梯始左母线终右母线
（2）接点应画水线画垂直线
（3）联块串联时应接点支路放梯形图左方串联块联时应接点联支路放梯形图方
（4）宜双线圈输出
4 什称PLC部继电器软继电器？硬件继电器相软继电器触点特点？
4 答：PLC部继电器实际硬继电器PLC部存储单元称软继电器梯形图软继电器组成梯形图控制线路图真正物理连接逻辑关系连接称软连接存储单元某位状态1时相某继电器线圈电该位状态0时相该继电器线圈断电软继电器常开触点常闭触点程序中数次
5传统继电器接触器控制系统编程控制系统区？
答：传统继电器接触器控制系统硬接线程序控制系统通修改控制器件接线改变控制功编程控制系统软接线程序控制系统通修改PLC程序改动少量接线端子改变控制功
6简述编程控制器特点
答：高性应灵活编程简单价格较高（详细解答）
7编程控制器性指标？
答：衡量PLC性指标分硬件指标软件指标硬件指标包括环境温度湿度抗干扰力环境输入输出特性等软件指标包括扫描速度存储容量指令功编程语言等
8编程控制系统工业控制计算机集散控制系统区？
答：工业控制计算机适求快速实时性强模型复杂计算工作量工业象控制集散控制系统模拟量处理回路调节方面具优势侧重回路调节功编程控制系统数字处理序控制方面具优势侧重开关量序控制具高性抗干扰性
9简述编程控制器基结构部分功
答：（1）导轨：安装PLC类模块机架（2）电源模块：PLC供电（3）CPU模块：CPU模块系统运算控制核心根系统程序求接收存储户程序数现场输入设备状态参数诊断PLC部电路工作状态编程程中语法错误完成户程序规定运算务更新关标志位状态输出状态寄存器状态实现输出控制数通信等功（4）输入输出模板：连接CPU模板现场输入＼输出元件设备
10PLC配置电气隔离作什？
答：电气隔离微处理器IO回路间采防干扰措施
11西门子（SIEMENS）公司系列PLC产品？采种编程语言？
答：西门子（SIEMENS）公司PLC产品早期S3系列S5系列前S7系列S7系列采编程语言：（1）梯形图（LAD）（2）语句表（STL）（3）功块图逻辑功图（FBD）（4）标准控制语言（SCL）（5）序控制（S7Graph）（6）连续功图（CFC）
12集散控制系统编程控制系统区？
答：集散控制系统模拟量处理回路调节方面具优势侧重回路调节功编程控制系统数字处理序控制方面具优势侧重开关量序控制
13工业控制计算机编程控制系统区？
答：工业控制计算机适求快速实时性强模型复杂计算工作量工业象控制编程控制系统具高性抗干扰性
14PLC控制系统设计中重原什？
答：PLC控制系统设计中重原满足控制象控制求确保控制系统安全性简化系统结构
三请写出指令表应梯形图（题8分16分）
1 LD X000
OR Y001
ANI X003
ANI Y002
OUT Y001
LD X002
OR Y002
ANI X003
ANI Y001
OUT Y002
END
1
X000
Y001
Y002
X003
Y001
Y002
X003
X002
Y002
Y001
2 LD X000
OR X001
LD X002
AND X003
LDI X004
AND X005
ORB
OR X006
ANB
OR X003
OUT Y000
END
Y000
2
X003
X002
X001
X000
X005
X004
X006
X003
3
LD I01
A I02
AN I03
M00
LDN I01
O I02
O I03
A I04
NOT
M01
四请写出梯形图应指令表（题10分20分）
1
1 LDI X0
AND X1
LD X2
ANI X3
ORB
AND X4
LDI X5
AND X7
LD X6
ANI M3
ORB
ANB
ANI X10
AND X11
OUT T0
K100
AND TO
OUT Y2
2．
2 LD X000
SET S20
STL S20
OUT Y000
LD X001
SET S21
STL S21
OUT Y002
LD X002
SET S22
STL S22
OUT Y003
LD X003
SET S26
STL S26
OUT Y006
LD X004
OUT S21
3．
LDN M00
A M01
Q41
LDN M00
Q42
4
LD M00
AN I01
M03
A T5
Q00
AN M04
Q01
5
LD I03
A C20
ON I01
A I02
Q21
LDN I01
A C20
O I03
AN I04
Q22
五计算题（14分）
1 三菱电机FX240MR基单元输入输出点数2416户程序1000步基指令PLC运行时连接位计算机等外设IO扫描速度003ms8点户程序扫描速度取074μs步诊断需时间设096ms试计算扫描周期需时间少？
1 解：扫描IO时间：T1003ms×408点015ms
扫描程序时间：T2074μs×1000步074ms
诊断时间： T3096ms
通信时间： T40
扫描周期：TT1+T2+T3+T4（015+074+096）ms
185ms
六分析题
1某控制系统选CPU224中模拟量扩展模块2字节递增方式分配址请表中介绍模块连接形式填写模块1模块3址分配
机CPU224
模块1
DI4DO4
DC24V
模块2
DI8
DC24V
模块3
AI4AO1
12位
模块4
DI4DO4
DC24V
模块5
AI4AO1
12位
I00 Q00
I01 Q01
…… ……
I15 Q15
I30
I31
I32
I33
I34
I35
I36
I37
Q30
Q31
Q32
Q33
Q34
Q35
Q36
Q37
1答案
机CPU224
模块1
DI4DO4
DC24V
模块2
DI8
DC24V
模块3
AI4AO1
模块4
DO8
DC24V
模块5
AI4AO1
I00 Q00
I01 Q01
…… ……
I15 Q15
I20 Q20
I21 Q21
I22 Q22
I23 Q23
I30
I31
I32
I33
I34
I35
I36
I37
AIW0 AQW0
AIW2
AIW4
AIW6
Q30
Q31
Q32
Q33
Q34
Q35
Q36
Q37
AIW8 AQW2
AIW10
AIW12
AIW14
2某控制系统选CPU224请表中介绍模块连接形式填写模块1模块3模块4址分配
机
CPU224
模块1 EM221
DI8
DC24V
模块2 EM222
DO8
DC24V
模块3
EM235
AI4AO1
12位
模块4
EM223
DI4DO4
DC24V
模块5
EM235
AI4AO1
12位
I00 Q00
I01 Q01
…… ……
I15 Q11
Q20
Q21
Q22
Q23
Q24
Q25
Q26
Q27
AIW8 AQW2
AIW10
AIW12
AIW14
2答案
机IO
模块1IO
模块2IO
模块3IO
模块4IO
模块5IO
I00 Q00
I01 Q01
…… ……
I15 Q11
I20
I21
I22
I23
I24
I25
I26
I27
Q20
Q21
Q22
Q23
Q24
Q25
Q26
Q27
AIW0 AQW0
AIW2
AIW4
AIW6
I30 Q30
I31 Q31
I32 Q32
I33 Q33
AIW8 AQW2
AIW10
AIW12
AIW14
六设计题
1台三相异步电动机正反转控制电路图（a）示PLC控制接线图（b）示正启动钮SB1电动机正转反启动钮SB2电动机反转停机时停机钮SB3载热继电器FR动作电动机停止述工作求：（1）分配IO通道（2）选择plc画出梯形图
图（a）电动机正反转控制电路 图（b）PLC控制接线图
1(1) 表 电动机正反转控制电路I／O分配表
(2) 选西门子S7200plc(选型号plc)
图 电动机正反转控制电路PLC控制程序
2两台电动机关联控制：某机械装置装两台电动机正起动钮SB2电动机正转反起动钮SB3电动机反转电动机运行时起动钮SB4电动机二运行电动机二单运行两台电动机钮SB1控制停止述工作求：（1）分配IO通道（2）选择plc画出梯形图
2（1）关联控制功IO分配表
SB1
I00
总停钮常闭触点
SB2
I01
电动机正转起动钮常开触点
SB3
I02
电动机反转起动钮常开触点
SB4
I03
电动机二起动钮常开触点
KM1
Q21
电动机正转运行
KM2
Q22
电动机反转运行
KM3
Q23
电动机二运行
（2）选西门子S7200plc(选型号plc)
图 电动机关联控制PLC控制程序
3接输入端光电开关SB1检测传送带通产品产品通时SB1常开状态果10s没产品通输出电路发出报警信号外接开关SB2解报警信号述工作求：（1）分配IO通道（2）选择plc画出梯形图（3）写出应指令表程序
3（1）产品检测控制电路IO分配表
SB1
I00
光电开关常开触点
SB2
I01
解报警开关常闭触点
Q00
报警信号
T37
时间继电器
（2）选西门子S7200plc(选型号plc)
图 产品报警检测PLC控制程序
4图车动返运动电路继电器控制电路图中KMlKM2分控制正转运行反转运行交流接触器KMlKM2触点改变进入电机三相电源相序改变电动机旋转方图中FR热继电器电动机载时常闭触点断开KMlKM2线圈断电电动机停转工作时右行起动钮SB2左行起动钮SB3求车左限位开关SQ1右限位开关SQ2间停循环返直停止钮SB1述工作求：（1）分配IO通道（2）选择plc画出梯形图
图 车动返运动继电器控制电路图
4（1）车动返运动控制电路IO分配表
SB1
I02
停止钮常闭触点
SB2
I00
右行起动钮常开触点
SB3
I01
左行起动钮常开触点
SQ1
I03
左限位开关常开触点
SQ2
I04
右限位开关常开触点
FR
I05
热保护常闭触点
KM1
Q00
正转运行
KM2
Q01
反转运行
（2）选西门子S7200plc(选型号plc)
图 电动机正反转控制电路PLC控制程序
5两台三相交流电动机M1M2组成控制系统工作工程：起动钮SB1电动机M1起动工作延时5s电动机M2起动工作停止钮SB2两台电动机时停机电动机M1载两台电动机时停机电动机M2载电动机M2停机电动机M1停机述工作求：（1）分配IO通道（2）选择plc画出梯形图
5（1）电动机控制IO分配表
SB1
I00
起动钮常开触点
SB2
I01
停机钮常闭触点
FR1
I02
电动机M1热保护常闭触点
FR2
I03
电动机M2热保护常闭触点
KM1
Q21
电动机M1运行
KM2
Q22
电动机M2运行
T38
时间继电器
（2）选西门子S7200plc(选型号plc)
请您删容O(∩_∩)O谢谢2015年中央电期末复考试抄全电期末考试必备抄电考试必抄请您删容O(∩_∩)O谢谢2015年中央电期末复考试抄全电期末考试必备抄电考试必抄The battle for young viewers CCTV is embracing Internet culture and working with independent producers on TV shows to woo audiences under 35 Han Bing bin reports After charming audiences with his warm smile for 14 years China Central Television host Li Jiaming recently found himself targeted by a group of young netizens unhappy with his style The complaints came after Li hosted the premiere of Rising Star on Oct 31 It is a singing competition show that originated in Israel Many young netizens found his hosting style slow and boring and mocked it as CCTV evening gala style They even initiated an online campaign to replace him The 40yearold host＇s reaction to the criticism was surprising During the second episode he jokingly called himself the slow Jiaming and acted much younger talking faster and louder It＇s like selling a product When the customers file a complaint you must change says Li In the Internet age you get feedback very quickly These young people are so cute When you＇re willing to change for them they will quickly like you back In order to win more young viewers CCTV is relying on programs such as Rising Star to embrace Internet culture In Rising Star a studio audience and fans watching on television vote for their favorite singers in real time using the instantmessaging app WeChat Rising Star was designed to be a live broadcast but the Chinese version isn＇t because of policy reasons Still WeChat votes by viewers at home are still a major factor in determining which contestants advance to the next round In the show＇s latest episode more than 65 million votes were cast via WeChat Now the competition among entertainment shows is very fierce Audiences have more diverse needs CCTV needs to embrace an open attitude interact with young audiences and blend with the Internet says Lyu Yitao director of CCTV＇s entertainment channel The producer of Rising Star Enlight Media says the program will have a phenomenal effect given CCTV＇s audience base nationwide But it comes with a challenge says Zhang Hang chief producer of the program and CEO of Enlight Media＇s TV business Unlike topranking provincial satellite channels such as Hunan TV which have a large base of young fans thanks to a series of phenomenally popular entertainment and reality shows CCTV productions are usually more conservative and serious and thus have a much older audience base If we were to run this program on Hunan we may attract twice as many viewers says Zhang But since we didn＇t make it there we now have to make the best out of the given conditions And it means we have to make certain compromises When the current season of Rising Star ends Zhang says his company will conduct an overall evaluation of the program and make adjustments for future seasons Although audience ratings haven＇t lived up to Zhang＇s expectations he says the program has already helped CCTV attract more young people According to Enlight Media the number of people ages 15 to 35 who watched the first episode of Rising Star was 76 percent higher than the usual audience for CCTV entertainment productions In order to attract young audiences CCTV has been working with independent production companies As one of CCTV＇s closest partners Enlight Media has produced several entertainment and reality shows for the company＇s channels including the Chinese version of The Biggest Loser on CCTV＇s business channel and an original teenager talent show Shaonian Zhongguo－qiang (Strong Young Chinese) on CCTV1 This year CCTV also licensed EEMedia the producer of the popular Super Girl talent shows to produce the talk show Hi 2014 hosted by Taiwan pop star Harlem Yu and one of China＇s most popular TV stars Xie Na The show is geared toward younger audiences Canxing Productions which rose to fame with the success of its Voice of China series on Zhejiang TV also produced two talent shows for CCTV One is an original production called Songs of China which ended up as one of CCTV＇s most watched programs of 2014 The State Administration of Press Publication Radio Film and Television announced earlier this year that starting in 2015 only one music talent show can be aired nationwide during prime time each season and there can be only one program based on foreign formats each year However domestic media report that such policies don＇t apply to CCTV meaning it will become a highly desired platform by production companies Wang Changtian CEO of Enlight Media confirmed to the Shanghai Securities News that its programs scheduled to air on CCTV next year which include at least two reality shows won＇t be affected A kung futhemed reality show produced by Canxing is also reportedly scheduled to run on CCTV next year CCTV is very active The level of its acceptance of new ideas is even beyond my imagination says Zhang Hang Our cooperation with CCTV will surely continue When winter comes nothing is more relaxing than a hot spring bath For thousands of years natural mineralrich hot spring baths have also been used to relieve health ailments The water found in natural hot springs contains a variety of different minerals and the most common one is sulfur It has a rotten egg smell but is excellent for skin The sulfurcontaining water might be just what the doctor ordered when it comes to relieving pain stress itchy skin arthritis and more Hot springs resorts are thriving as biting cold winter arrives Here we take a look at some of the best natural hot springs China has to offer
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填空题（空2分30分）
1 PLC输入输出继电器采 进制进行编号软元件均采 进制进行编号(八 十)
2 PLC状态元件中 初始状态(S2～S9)
3 描述PLC技术指标 特殊功模块六种
(IO总点数 存储容量 扫描速度 部寄存器 编程语言指令系统)
4 PLC输出形式 输出 输出 输出三种(继电器 晶体 晶闸)
5 说明列指令意义
MOV RST
ORB LD
(数传送指令 复位指令 串联电路块联指令 取指令)
6编程序控制器采微处理器作中央处理单元 进行控制 进行控制 (逻辑量 模拟量)
7PLC具逻辑运算功够描述继电器触点 等种连接(串联 联)
8PLC具 功完成模拟量控制调节(模数转换（AD转换） 数模转换（DA转换）
9结构形式分类PLC分 式 式两种(整体式 模块式)
10 模块编程序控制器系统运算控制核心(CPU)
11 安装编程控制器类模板机架根实际需选择(导轨)
12 模板PLC部电路供电(电源)
13 输入端电压电流信号转换成微处理器接收低电信号(输入电压转换)
14输出电转换 控制低电信号转换控制设备需电压电流信号(微处理器)
15 微处理器IO回路间采防干扰措施(电气隔离)
16S7300S4400通 接口组成PLC网络点接口（MPI）
17MPI 简称MPI网采 通信模式（点接口 全局数（GD））
18全局数（GD）通信方式 分支网基础循环传送少量数设计（点接口（MPI））
19 通信方式MPI分支网基础循环传送少量数设计（全局数（GD））
20编程序控制器系统中站间通信方式 站站间 两种方式混合（令牌方式 方式）
21PROFIBUS网络 站 等构成（站 网络部件）
22DCS 简称单回路仪表控制系统发展起（集散控制系统）
二简答题（题5分20分）
1 简述PLC硬件结构软件系统
1答： PLC采典型计算机结构硬件微处理器（CPU）存储器采扫描工作方式IO接口电路电源等组成PLC软件系统系统程序应程序组成
2 什扫描工作方式？什扫描周期？受影响？
2 答：计算机系统样PLCCPU采分时操作原理时刻执行操作着时间延伸动作接动作序进行种分时操作进程称CPU程序扫描PLC户程序干条指令组成指令存储器中序号序排列CPU第条指令开始序逐条执行户程序直户程序结束然返回第条指令开始新轮扫描PLC扫描工作方式
执行户程序外次扫描程中完成输入输出处理等工作扫描次时间称扫描周期扫描周期长短首先条指令执行时间长短关次指令类型包含指令条数少关
3 编程控制器梯形图编程规容什？
3 答：梯形图程序编程基原包括：
（1）梯形图中阶梯始左母线终右母线
（2）接点应画水线画垂直线
（3）联块串联时应接点支路放梯形图左方串联块联时应接点联支路放梯形图方
（4）宜双线圈输出
4 什称PLC部继电器软继电器？硬件继电器相软继电器触点特点？
4 答：PLC部继电器实际硬继电器PLC部存储单元称软继电器梯形图软继电器组成梯形图控制线路图真正物理连接逻辑关系连接称软连接存储单元某位状态1时相某继电器线圈电该位状态0时相该继电器线圈断电软继电器常开触点常闭触点程序中数次
5传统继电器接触器控制系统编程控制系统区？
答：传统继电器接触器控制系统硬接线程序控制系统通修改控制器件接线改变控制功编程控制系统软接线程序控制系统通修改PLC程序改动少量接线端子改变控制功
6简述编程控制器特点
答：高性应灵活编程简单价格较高（详细解答）
7编程控制器性指标？
答：衡量PLC性指标分硬件指标软件指标硬件指标包括环境温度湿度抗干扰力环境输入输出特性等软件指标包括扫描速度存储容量指令功编程语言等
8编程控制系统工业控制计算机集散控制系统区？
答：工业控制计算机适求快速实时性强模型复杂计算工作量工业象控制集散控制系统模拟量处理回路调节方面具优势侧重回路调节功编程控制系统数字处理序控制方面具优势侧重开关量序控制具高性抗干扰性
9简述编程控制器基结构部分功
答：（1）导轨：安装PLC类模块机架（2）电源模块：PLC供电（3）CPU模块：CPU模块系统运算控制核心根系统程序求接收存储户程序数现场输入设备状态参数诊断PLC部电路工作状态编程程中语法错误完成户程序规定运算务更新关标志位状态输出状态寄存器状态实现输出控制数通信等功（4）输入输出模板：连接CPU模板现场输入＼输出元件设备
10PLC配置电气隔离作什？
答：电气隔离微处理器IO回路间采防干扰措施
11西门子（SIEMENS）公司系列PLC产品？采种编程语言？
答：西门子（SIEMENS）公司PLC产品早期S3系列S5系列前S7系列S7系列采编程语言：（1）梯形图（LAD）（2）语句表（STL）（3）功块图逻辑功图（FBD）（4）标准控制语言（SCL）（5）序控制（S7Graph）（6）连续功图（CFC）
12集散控制系统编程控制系统区？
答：集散控制系统模拟量处理回路调节方面具优势侧重回路调节功编程控制系统数字处理序控制方面具优势侧重开关量序控制
13工业控制计算机编程控制系统区？
答：工业控制计算机适求快速实时性强模型复杂计算工作量工业象控制编程控制系统具高性抗干扰性
14PLC控制系统设计中重原什？
答：PLC控制系统设计中重原满足控制象控制求确保控制系统安全性简化系统结构
三请写出指令表应梯形图（题8分16分）
1 LD X000
OR Y001
ANI X003
ANI Y002
OUT Y001
LD X002
OR Y002
ANI X003
ANI Y001
OUT Y002
END
1
X000
Y001
Y002
X003
Y001
Y002
X003
X002
Y002
Y001
2 LD X000
OR X001
LD X002
AND X003
LDI X004
AND X005
ORB
OR X006
ANB
OR X003
OUT Y000
END
Y000
2
X003
X002
X001
X000
X005
X004
X006
X003
3
LD I01
A I02
AN I03
M00
LDN I01
O I02
O I03
A I04
NOT
M01
四请写出梯形图应指令表（题10分20分）
1
1 LDI X0
AND X1
LD X2
ANI X3
ORB
AND X4
LDI X5
AND X7
LD X6
ANI M3
ORB
ANB
ANI X10
AND X11
OUT T0
K100
AND TO
OUT Y2
2．
2 LD X000
SET S20
STL S20
OUT Y000
LD X001
SET S21
STL S21
OUT Y002
LD X002
SET S22
STL S22
OUT Y003
LD X003
SET S26
STL S26
OUT Y006
LD X004
OUT S21
3．
LDN M00
A M01
Q41
LDN M00
Q42
4
LD M00
AN I01
M03
A T5
Q00
AN M04
Q01
5
LD I03
A C20
ON I01
A I02
Q21
LDN I01
A C20
O I03
AN I04
Q22
五计算题（14分）
1 三菱电机FX240MR基单元输入输出点数2416户程序1000步基指令PLC运行时连接位计算机等外设IO扫描速度003ms8点户程序扫描速度取074μs步诊断需时间设096ms试计算扫描周期需时间少？
1 解：扫描IO时间：T1003ms×408点015ms
扫描程序时间：T2074μs×1000步074ms
诊断时间： T3096ms
通信时间： T40
扫描周期：TT1+T2+T3+T4（015+074+096）ms
185ms
六分析题
1某控制系统选CPU224中模拟量扩展模块2字节递增方式分配址请表中介绍模块连接形式填写模块1模块3址分配
机CPU224
模块1
DI4DO4
DC24V
模块2
DI8
DC24V
模块3
AI4AO1
12位
模块4
DI4DO4
DC24V
模块5
AI4AO1
12位
I00 Q00
I01 Q01
…… ……
I15 Q15
I30
I31
I32
I33
I34
I35
I36
I37
Q30
Q31
Q32
Q33
Q34
Q35
Q36
Q37
1答案
机CPU224
模块1
DI4DO4
DC24V
模块2
DI8
DC24V
模块3
AI4AO1
模块4
DO8
DC24V
模块5
AI4AO1
I00 Q00
I01 Q01
…… ……
I15 Q15
I20 Q20
I21 Q21
I22 Q22
I23 Q23
I30
I31
I32
I33
I34
I35
I36
I37
AIW0 AQW0
AIW2
AIW4
AIW6
Q30
Q31
Q32
Q33
Q34
Q35
Q36
Q37
AIW8 AQW2
AIW10
AIW12
AIW14
2某控制系统选CPU224请表中介绍模块连接形式填写模块1模块3模块4址分配
机
CPU224
模块1 EM221
DI8
DC24V
模块2 EM222
DO8
DC24V
模块3
EM235
AI4AO1
12位
模块4
EM223
DI4DO4
DC24V
模块5
EM235
AI4AO1
12位
I00 Q00
I01 Q01
…… ……
I15 Q11
Q20
Q21
Q22
Q23
Q24
Q25
Q26
Q27
AIW8 AQW2
AIW10
AIW12
AIW14
2答案
机IO
模块1IO
模块2IO
模块3IO
模块4IO
模块5IO
I00 Q00
I01 Q01
…… ……
I15 Q11
I20
I21
I22
I23
I24
I25
I26
I27
Q20
Q21
Q22
Q23
Q24
Q25
Q26
Q27
AIW0 AQW0
AIW2
AIW4
AIW6
I30 Q30
I31 Q31
I32 Q32
I33 Q33
AIW8 AQW2
AIW10
AIW12
AIW14
六设计题
1台三相异步电动机正反转控制电路图（a）示PLC控制接线图（b）示正启动钮SB1电动机正转反启动钮SB2电动机反转停机时停机钮SB3载热继电器FR动作电动机停止述工作求：（1）分配IO通道（2）选择plc画出梯形图
图（a）电动机正反转控制电路 图（b）PLC控制接线图
1(1) 表 电动机正反转控制电路I／O分配表
(2) 选西门子S7200plc(选型号plc)
图 电动机正反转控制电路PLC控制程序
2两台电动机关联控制：某机械装置装两台电动机正起动钮SB2电动机正转反起动钮SB3电动机反转电动机运行时起动钮SB4电动机二运行电动机二单运行两台电动机钮SB1控制停止述工作求：（1）分配IO通道（2）选择plc画出梯形图
2（1）关联控制功IO分配表
SB1
I00
总停钮常闭触点
SB2
I01
电动机正转起动钮常开触点
SB3
I02
电动机反转起动钮常开触点
SB4
I03
电动机二起动钮常开触点
KM1
Q21
电动机正转运行
KM2
Q22
电动机反转运行
KM3
Q23
电动机二运行
（2）选西门子S7200plc(选型号plc)
图 电动机关联控制PLC控制程序
3接输入端光电开关SB1检测传送带通产品产品通时SB1常开状态果10s没产品通输出电路发出报警信号外接开关SB2解报警信号述工作求：（1）分配IO通道（2）选择plc画出梯形图（3）写出应指令表程序
3（1）产品检测控制电路IO分配表
SB1
I00
光电开关常开触点
SB2
I01
解报警开关常闭触点
Q00
报警信号
T37
时间继电器
（2）选西门子S7200plc(选型号plc)
图 产品报警检测PLC控制程序
4图车动返运动电路继电器控制电路图中KMlKM2分控制正转运行反转运行交流接触器KMlKM2触点改变进入电机三相电源相序改变电动机旋转方图中FR热继电器电动机载时常闭触点断开KMlKM2线圈断电电动机停转工作时右行起动钮SB2左行起动钮SB3求车左限位开关SQ1右限位开关SQ2间停循环返直停止钮SB1述工作求：（1）分配IO通道（2）选择plc画出梯形图
图 车动返运动继电器控制电路图
4（1）车动返运动控制电路IO分配表
SB1
I02
停止钮常闭触点
SB2
I00
右行起动钮常开触点
SB3
I01
左行起动钮常开触点
SQ1
I03
左限位开关常开触点
SQ2
I04
右限位开关常开触点
FR
I05
热保护常闭触点
KM1
Q00
正转运行
KM2
Q01
反转运行
（2）选西门子S7200plc(选型号plc)
图 电动机正反转控制电路PLC控制程序
5两台三相交流电动机M1M2组成控制系统工作工程：起动钮SB1电动机M1起动工作延时5s电动机M2起动工作停止钮SB2两台电动机时停机电动机M1载两台电动机时停机电动机M2载电动机M2停机电动机M1停机述工作求：（1）分配IO通道（2）选择plc画出梯形图
5（1）电动机控制IO分配表
SB1
I00
起动钮常开触点
SB2
I01
停机钮常闭触点
FR1
I02
电动机M1热保护常闭触点
FR2
I03
电动机M2热保护常闭触点
KM1
Q21
电动机M1运行
KM2
Q22
电动机M2运行
T38
时间继电器
（2）选西门子S7200plc(选型号plc)
请您删容O(∩_∩)O谢谢2015年中央电期末复考试抄全电期末考试必备抄电考试必抄请您删容O(∩_∩)O谢谢2015年中央电期末复考试抄全电期末考试必备抄电考试必抄The battle for young viewers CCTV is embracing Internet culture and working with independent producers on TV shows to woo audiences under 35 Han Bing bin reports After charming audiences with his warm smile for 14 years China Central Television host Li Jiaming recently found himself targeted by a group of young netizens unhappy with his style The complaints came after Li hosted the premiere of Rising Star on Oct 31 It is a singing competition show that originated in Israel Many young netizens found his hosting style slow and boring and mocked it as CCTV evening gala style They even initiated an online campaign to replace him The 40yearold host＇s reaction to the criticism was surprising During the second episode he jokingly called himself the slow Jiaming and acted much younger talking faster and louder It＇s like selling a product When the customers file a complaint you must change says Li In the Internet age you get feedback very quickly These young people are so cute When you＇re willing to change for them they will quickly like you back In order to win more young viewers CCTV is relying on programs such as Rising Star to embrace Internet culture In Rising Star a studio audience and fans watching on television vote for their favorite singers in real time using the instantmessaging app WeChat Rising Star was designed to be a live broadcast but the Chinese version isn＇t because of policy reasons Still WeChat votes by viewers at home are still a major factor in determining which contestants advance to the next round In the show＇s latest episode more than 65 million votes were cast via WeChat Now the competition among entertainment shows is very fierce Audiences have more diverse needs CCTV needs to embrace an open attitude interact with young audiences and blend with the Internet says Lyu Yitao director of CCTV＇s entertainment channel The producer of Rising Star Enlight Media says the program will have a phenomenal effect given CCTV＇s audience base nationwide But it comes with a challenge says Zhang Hang chief producer of the program and CEO of Enlight Media＇s TV business Unlike topranking provincial satellite channels such as Hunan TV which have a large base of young fans thanks to a series of phenomenally popular entertainment and reality shows CCTV productions are usually more conservative and serious and thus have a much older audience base If we were to run this program on Hunan we may attract twice as many viewers says Zhang But since we didn＇t make it there we now have to make the best out of the given conditions And it means we have to make certain compromises When the current season of Rising Star ends Zhang says his company will conduct an overall evaluation of the program and make adjustments for future seasons Although audience ratings haven＇t lived up to Zhang＇s expectations he says the program has already helped CCTV attract more young people According to Enlight Media the number of people ages 15 to 35 who watched the first episode of Rising Star was 76 percent higher than the usual audience for CCTV entertainment productions In order to attract young audiences CCTV has been working with independent production companies As one of CCTV＇s closest partners Enlight Media has produced several entertainment and reality shows for the company＇s channels including the Chinese version of The Biggest Loser on CCTV＇s business channel and an original teenager talent show Shaonian Zhongguo－qiang (Strong Young Chinese) on CCTV1 This year CCTV also licensed EEMedia the producer of the popular Super Girl talent shows to produce the talk show Hi 2014 hosted by Taiwan pop star Harlem Yu and one of China＇s most popular TV stars Xie Na The show is geared toward younger audiences Canxing Productions which rose to fame with the success of its Voice of China series on Zhejiang TV also produced two talent shows for CCTV One is an original production called Songs of China which ended up as one of CCTV＇s most watched programs of 2014 The State Administration of Press Publication Radio Film and Television announced earlier this year that starting in 2015 only one music talent show can be aired nationwide during prime time each season and there can be only one program based on foreign formats each year However domestic media report that such policies don＇t apply to CCTV meaning it will become a highly desired platform by production companies Wang Changtian CEO of Enlight Media confirmed to the Shanghai Securities News that its programs scheduled to air on CCTV next year which include at least two reality shows won＇t be affected A kung futhemed reality show produced by Canxing is also reportedly scheduled to run on CCTV next year CCTV is very active The level of its acceptance of new ideas is even beyond my imagination says Zhang Hang Our cooperation with CCTV will surely continue When winter comes nothing is more relaxing than a hot spring bath For thousands of years natural mineralrich hot spring baths have also been used to relieve health ailments The water found in natural hot springs contains a variety of different minerals and the most common one is sulfur It has a rotten egg smell but is excellent for skin The sulfurcontaining water might be just what the doctor ordered when it comes to relieving pain stress itchy skin arthritis and more Hot springs resorts are thriving as biting cold winter arrives Here we take a look at some of the best natural hot springs China has to offer
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