A20B33000551

开关量就是触点状态的接通或者断开，又或者是逻辑电平的高低等。开关量在楼宇监控，机电保护，电力网自动化中有非常普遍的应用。在很多的场合都是利用开关量来实现各个设备之间的联动。但是一般来说，开关量的额定电流不完全相同，而且联动设备相互之间的距离比较远，完全利用原有的开关量来驱动另外的设备是不合时宜的。
　　在某楼宇监控项目中，要求火灾报警信号与监控中心的消防系统可以进行联动，即一旦发生火灾报警信号，监控中心的消防系统就立即进行启动。但是系统集成商在实际施工中，发现有如下几个问题：1.火灾报警器与控制中心的距离相隔比较远，火灾报警器的信号不能传导到控制中心。2.火灾报警器与控制中心的消防设备，一个属于弱电信号，一个属于强电信号，不能接在一起进行数据采集设备控制。
在工业自动化控制中，经常会遇到开关量，数字量，模拟量，离散量，脉冲量等各种概念，而人们在实际应用中，对于这些概念又很容易混淆。现将各种概念罗列如下：
　　1.开关量：一般指的是触点的“开”与“关”的状态，一般在计算机设备中也会用“0”或“1”来表示开关量的状态。开关量分为有源开关量信号和无源开关量信号，有源开关量信号指的是“开”与“关”的状态是带电源的信号，专业叫法为跃阶信号，可以理解为脉冲量，一般的都有220VAC, 110VAC,24VDC,12VDC等信号，无源开关量信号指的是“开”和“关”的状态时不带电源的信号，一般又称之为干接点。电阻测试法为电阻0或无穷大。
　　2.数字量：很多人会将数字量与开关量混淆，也将其与模拟量混淆。数字量在时间和数量上都是离散的物理量，其表示的信号则为数字信号。数字量是由0和1组成的信号，经过编码形成有规律的信号，量化后的模拟量就是数字量。
　　3.模拟量：模拟量的概念与数字量相对应，但是经过量化之后又可以转化为数字量。模拟量是在时间和数量上都是连续的物理量，其表示的信号则为模拟信号。模拟量在连续的变化过程中任何一个取值都是一个具体有意义的物理量，如温度，电压，电流等。
　　4.离散量：离散量是将模拟量离散化之后得到的物理量。即任何仪器设备对于模拟量都不可能有个完全精确的表示，因为他们都有一个采样周期，在该采样周期内，其物理量的数值都是不变的，而实际上的模拟量则是变化的。这样就将模拟量离散化，成为了离散量。
　　5.脉冲量：脉冲量就是瞬间电压或电流由某一值跃变到另一值的信号量。在量化后，其变化持续有规律就是数字量，如果其由0变成某一固定值并保持不变，其就是开关量。
　　综上所述，模拟量就是在某个过程中时间和数量连续变化的物理量，由于在实际的应用中，所有的仪器设备对于外界数据的采集都有一个采样周期，其采集的数据只有在下一个采样周期开始时才有变动，采样周期内其数值并不随模拟量的变化而变动。这样就将模拟量离散化了，例如：某设备的采样周期为1秒，其在第五秒的时间采集的温度为35度，而第六秒的温度为36度，该设备就只能标称第五秒时间温度35度，第六秒时间温度36度，而第五点五秒的时间其标称也只是35度，但是其实际的模拟量是35.5度。这样就将模拟信号离散化。其采集的数据就是离散化了，不再是连续的模拟量信号。由于计算机只识别0和1两个信号，即开关量信号，用其来表示数值都是使用数字串来表示，由于计算能力的问题，其数字串不能无限长，即其表达的精度也是有限的，同样的以温度为例，由于数字串限制，其表达温度的精度只能达到0.1度，小于该单位的数值则不能被标称，这样就必须将离散量进行量化，将其变为数字量。即35.68度的温度则表示为35.6度。
对于中国自动化企业而言，由于行业起步晚，一“出生”便要进入同ABB、西门子、霍尼韦尔等欧美品牌群雄逐鹿的激烈战场，面对恶劣的竞争环境，贺剑锋提出了细分市场、先做强再做大、立足国内走向国际的战略。待到2008年，和利时已然是国内领先的自动化与信息技术解决方案供应商，并在美国纳斯达克上市，此时的和利时，核心业务领域涉及工程自动化、工厂自动化和轨道交通自动化。
2011年以前，和利时的收入严重依赖于轨道交通和核电自动化两大板块。受到日本福岛核电站泄露事故影响，核电站建设停滞，以及国内针对轨道交通自动化审批的收紧，公司业务受到了巨大的冲击。贺剑锋提出丰富产品线，将业务重点放在工业自动化、轨道交通和医疗自动化。重新制定业务战略后，企业进入了快速发展道路。
2014年，面对快速发展的业务，和利时更换了新的ERP系统，重点解决了业务财务一体化、准确核算、项目生命周期管理等方面的问题，把和利时的管理水平提升到了一个新的高度。
对于创新话题，贺剑锋认为，企业的创新不仅包括技术创新、产品创新、管理创新、体制创新，还包括文化创新。正是基于这些创新，和利时才能发展至今，创新是企业发展的最重要动力。为了有一个更好的发展空间，未来和利时将在自动化方面进行创新。创新是和利时的根本，和利时希望把真正的创新体现在用户的需求、用户的理解方面，深入到每一个行业当中去创新。
在贺剑锋看来，自动化本身是一门应用科学，而不是最终的产品。但是自动化对一般人的生活有很大的影响，无论是大家坐高铁还是地铁，都会用到自动化系统。随着大数据、互联网的发展，自动化产业本身的很多内涵就已经发生了根本的变化。未来，自动化将超出以前的自动化的领域，把更多的产业引入到这个产业当中来。
贺剑锋说，无论是中国制造2025，还是德国工业4.0，都得益于互联网。未来，和利时一方面会把产品向上延伸，更多地把信息化引入到自动化。另一方面向下延伸，通过手机将人互联起来，通过物体上的传感器和人互动。他认为，德国工业4.0和中国制造2025，其本质都是万物互联。

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【主营产品】
1：Invensys Foxboro（福克斯波罗）：I/A Series系统，FBM（现场输入/输出模块）顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。

2：Invensys Triconex: 冗余容错控制系统、基于三重模件冗余（TMR）结构的最现代化的容错控制器。

3：Westinghouse（西屋）： OVATION系统、WDPF系统、WEStation系统备件。

4：Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。

5：Schneider Modicon（施耐德莫迪康）：Quantum 140系列处理器、控制卡、电源模块等。

6：ABB：工业机器人备件DSQC系列、Bailey INFI 90等。

7：Siemens(西门子)：Siemens MOORE， Siemens Simatic C1，Siemens数控系统等。

8：Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

9：XYCOM：I/O 、VME板和处理器等。

10：GE FANUC(GE发那科)：模块、卡件、驱动器等各类备件。

11：Yaskawa（安川）：伺服控制器、伺服马达、伺服驱动器。

12：Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。

13：Woodward（伍德沃德）：SPC阀位控制器、PEAK150数字控制器。

14:工业机器人系统备件。
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3 CUTLER HAMMER FH33 MOTOR STARTER THERMAL UNITS / OVERLOAD HEATERS-  
3 CUTLER HAMMER H2007B MOTOR STARTER THERMAL UNITS / OVERLOAD HEATERS-  
3 pcs Altera EPF6024ATC144-2 IC FLEX 6000 144 pin TQFP 0 to 85°C  
3 pcs Altera EPM5032LI-25  
3 pcs Altera EPM7032TC44-6 MAX 7000 CPLD 44-PLCC  
3 pcs Altera EPM7128EQC100-15 MAX 7000 CPLD 100-PQFP  
3 pcs Altera EPM7128SQC100-7 MAX 7000 CPLD 100-PQFP  
3 pcs Altera EPM7128STC100-15 MAX 7000 CPLD 100-PQFP  
30026 Metalquimia 86570 Sensor / Transducer
30089 Bell-Mark EY0052 Keypad
30089 Bell-Mark EY0052 Keypad
30089 Bell-Mark EY0052 Keypad
30329 Wood Head 4022ES Double Button Station Emergency Stop
30402 Allen Bradley CD-254 Contactor Coil 230-240V 60Hz
30402 Allen Bradley CD-254 Contactor Coil 230-240V 60Hz
30403 Allen Bradley CD-273 Contactor Coil 460-480V 60Hz
30403 Allen Bradley CD-273 Contactor Coil 460-480V 60Hz
30403 Allen Bradley CD-273 Contactor Coil 460-480V 60Hz
30410 Cutler Hammer HLA3500T Breaker Trip Unit 3 Pole 500A
30411 Cutler Hammer HLA3300T Breaker Trip Unit 3 Pole 300A
30412 Cutler Hammer HLA3250T Breaker Trip Unit 3 Pole 250A
30413 Westing House HKB3200T Circuit Breaker 3 Pole 200A
30414 Westing House 2602D83G24 Circuit Breaker 3 Pole 225A
30432 MDI SS20DU Solid State Relay
30443 Allen Bradley 71A27 Contactor Coil 24V 60Hz
30443 Allen Bradley 71A27 Contactor Coil 24V 60Hz
30445 Allen Bradley 72A86 Contactor Coil 120/110V 60/50Hz
30445 Allen Bradley 72A86 Contactor Coil 120/110V 60/50Hz
30447 Allen Bradley 73A86 Coil 120/110V 60/50Hz
30447 Allen Bradley 73A86 Coil 120/110V 60/50Hz
30448 Allen Bradley CB254 Coil 130-240V 60Hz 220V 50Hz
30448 Allen Bradley CB254 Coil 130-240V 60Hz 220V 50Hz
30895 Martin 80B12SS Sprocket #80 12T 1-7/16ID 1Pitch
31367 Cooling & Applied Tech. A300.04 Spring 1-1/2 OD 5mm Wire Width
31367 Cooling & Applied Tech. A300.04 Spring 1-1/2 OD 5mm Wire Width
31402 Rovema 4032502 Cable 12 Wire Measured 23'
31711 A Tech 405-20-0677 Pressure Transducer
31741 Kauffman Engineering 1045732/001 Main Harness
31909 Linn Gear 40A17/CS20516N Sprocket #40 17T 1 ID
32325 Condor HB5-3/OPV-A Power Supply Input: 100/120/230-240V
32325 Condor HB5-3/OPV-A Power Supply Input: 100/120/230-240V
32395 Sterling Electric 218B0005142 Gearbox 5:1 Ratio 1.703HP
32426 Brevini Riduttori ET3065-FS Motor 1/2-5 Input
32436 Allen-Bradley 40420-322-51 Contact Kit 1-pole size 2
32436 Allen-Bradley 40420-322-51 Contact Kit 1-pole size 2
32437 Allen-Bradley Z-34039 Contact Kit Size 2
32490 Alkar 51630 Hygrometer 25 Ft. Length
32490 Alkar 51630 Hygrometer 25 Ft. Length
32498 HO Terrice V80035 Dial Thermometer Flange 6 Ft. Cable
32498 HO Terrice V80035 Dial Thermometer Flange 6 Ft. Cable
32523 Allen-Bradley 800H-4HZ4 Pushbutton Enclosure Stainless
32616 ECA 70D10 Safety Controller 120V 50/60Hz
33231 Allen-Bradley 1326-CCU-RAL-005 Resolver Cable 5 Meter Length
33248 Efector LL54185-02 Photo Sensor 10 Ft. Length
33248 Efector LL54185-02 Photo Sensor 10 Ft. Length
33260 Siemens 5SX23C16 Circuit Breaker 480VAC 16amp
33277 TH Heat element 230Volts 1800 Watts
33319 Bridge Machine 32216 Double Idler Sprocket #40 12T 3/4 ID
33330 OPTO 22 B4 I/O Module
33330 OPTO 22 B4 I/O Module
33342 Triangle A22797 Color Display Touch Panel
33342 Triangle A22797 Color Display Touch Panel
33342 Triangle A22797 Color Display Touch Panel
33344 SQUARE D 8536SCO3S Starter 7-1/2 HP 200/230V 60Hz
33344 SQUARE D 8536SCO3S Starter 7-1/2 HP 200/230V 60Hz
33344 SQUARE D 8536SCO3S Starter 7-1/2 HP 200/230V 60Hz
33352 Finder 60.12.9.024.0040 Relay 10A 250V 24VDC Coil
33375 EMB STT 016 Transformer 015/037kVA
33410 Martin 40B24SS Sprocket #40 24T 5/8 Bore
33485 Honeywell C645A-1030 Pressure Switch 1/4 NPT In
33611 Furnas 42CF35AJ Definite Purpose Controller 3 Power Poles
33611 Furnas 42CF35AJ Definite Purpose Controller 3 Power Poles
33616 Microswitch BZV6-2RN2 9017 Roller Limit Switch
33616 Microswitch BZV6-2RN2 9017 Roller Limit Switch
33627 Microswitch BZ-RQX167 Limit Switch with plunger 15A 125 250
33644 Baldor T71 Three Phase Torque Control
33644 Baldor T71 Three Phase Torque Control
33644 Baldor T71 Three Phase Torque Control
33646 Underwriters Laboratories 2602D83G20 Circuit Breaker 125 Amps
33663 Telemecanique LC2D09 Reversing Contactor 25amp
33663 Telemecanique LC2D09 Reversing Contactor 25amp
33663 Telemecanique LC2D09 Reversing Contactor 25amp
33698 Square D 31063-409-57 Contactor Coil 480V 60Hz
33699 Square D 31041-400-20 Contactor Coil 24V 60Hz
33710 Allen-Bradley 1497-N2 Control Circuit Transformer 240/480V
33732 Moeller Electric M22-K01 Contactor 500V 642A
33732 Moeller Electric M22-K01 Contactor 500V 642A
33932 STACO ENERGY Type 501 Variable Transformer 120V 50/60Hz 5A
33947 202870107 Cable Interface Wire 15
33963 20DJSGB016A Heater Cartrdige
33963 20DJSGB016A Heater Cartrdige
34001 Allen-Bradley 2A01 Contactor Coil 440V 60CY
34001 Allen-Bradley 2A01 Contactor Coil 440V 60CY
34002 Allen-Bradley 3A11 Contactor Coil 440V 60CY 380V 50CY
34008 Telemecanique LCD1210 Contacter 25A continous current
34008 Telemecanique LCD1210 Contacter 25A continous current
34169 PHOENIX CONTACT PSR-SCP-24UC/ESM4/2X1/1X2 Safety Relay 24VAC/DC
34169 PHOENIX CONTACT PSR-SCP-24UC/ESM4/2X1/1X2 Safety Relay 24VAC/DC
34169 PHOENIX CONTACT PSR-SCP-24UC/ESM4/2X1/1X2 Safety Relay 24VAC/DC
34176 Allen Bradley 40440-300-51 Contact Kit
34176 Allen Bradley 40440-300-51 Contact Kit
34176 Allen Bradley 40440-300-51 Contact Kit
34190 Honeywell R7249A1003 U.V. Amplifier
34255 Square D 8501X080V02 Relay 110V/50Hz 120V/60Hz
34255 Square D 8501X080V02 Relay 110V/50Hz 120V/60Hz
34255 Square D 8501X080V02 Relay 110V/50Hz 120V/60Hz
34363 General Electric E11592 Circuit Breaker 100A 3-Pole
34376 Square D 31063-409-38 Coil 110/120V 50/60Hz
34376 Square D 31063-409-38 Coil 110/120V 50/60Hz
34520 NCC S1K-5-461 Solid State Timer .05-5 SEC.
34532 STRUTHERS A311XBXPR Relay 120V 60Hz
34532 STRUTHERS A311XBXPR Relay 120V 60Hz
34560 OMRON 3G2A3-PR016 Programming Console
34560 OMRON 3G2A3-PR016 Programming Console
34560 OMRON 3G2A3-PR016 Programming Console
34568 Barksdale D1T-H18SS Pressure/Vacuum Actuated Switch
34573 Allen-Bradley CB273 Contactor Coil 460-480V 60Hz
34573 Allen-Bradley CB273 Contactor Coil 460-480V 60Hz
34589 Allen-Bradley 800T-XAP Contact Block
34589 Allen-Bradley 800T-XAP Contact Block
34652 H2008 Overload Unit
34734 Allen-Bradley MA236 Coil 110/ 115-120V 50/60Hz
34734 Allen-Bradley MA236 Coil 110/ 115-120V 50/60Hz
34907 Potter & Brumfield PRD11AY0-240V Relay 240V
34914 ST250ATX Power Supply 115V 6A
34914 ST250ATX Power Supply 115V 6A
34932 Allen-Bradley 40410-331-52 Contact Kit DUL 500 Size 1 1-Pole
34946 Allen-Bradley 837-A4E Temperature Controller
34946 Allen-Bradley 837-A4E Temperature Controller
34946 Allen-Bradley 837-A4E Temperature Controller
34949 Telemecanique LRD 22 Overload Relay 16 - 24 amps
34949 Telemecanique LRD 22 Overload Relay 16 - 24 amps
34952 Telemecanique LRD 07 Overload Relay 1.6-2.5A
34958 Telemecanique LC2D09 Contactor 25A 120V
34958 Telemecanique LC2D09 Contactor 25A 120V
34959 Square D 9007C54B2Y1851 Limit Switch 600V 10A
34959 Square D 9007C54B2Y1851 Limit Switch 600V 10A
34959 Square D 9007C54B2Y1851 Limit Switch 600V 10A
35107 Opto 22 IDC5Q I/O Module
35115 Opto 22 AD6 Output Module 0-5V Input
35115 Opto 22 AD6 Output Module 0-5V Input
35209 Square D C54CS17 Limit Switch 7 Ft. 10 Cord Length
35209 Square D C54CS17 Limit Switch 7 Ft. 10 Cord Length
35209 Square D C54CS17 Limit Switch 7 Ft. 10 Cord Length
35218 Analog AC2626-L4 Temperature Sensor 3/16 OD
35218 Analog AC2626-L4 Temperature Sensor 3/16 OD
35381 Micro Switch BZV6-2RN2 Limit Switch 1/2NPT
35381 Micro Switch BZV6-2RN2 Limit Switch 1/2NPT
35382 Micro Switch BZG1-2RN2 Limit Switch w/ Roller 1/2NPT
35382 Micro Switch BZG1-2RN2 Limit Switch w/ Roller 1/2NPT
35384 Micro Switch BZE6-2RN2 Limit Switch 1/2NPT
35384 Micro Switch BZE6-2RN2 Limit Switch 1/2NPT
35385 Micro Switch BZE6-RNX1 Limit Switch 15A 125/250/480VAC
35388 Micro Switch MPL6 Photoswitch Head
35388 Micro Switch MPL6 Photoswitch Head
35527 Loveshaw ILTH-24 Power Supply 120VAC 60Hz 22W
35706 HEVI-DUTY HS1A250 Transformer 240X480V
35715 Micro Switch FE-MLS 8C Photoelectric 10A 120VAC 50/60Hz
35720 COSEL R15U-24 Power Supply 24V 0.7A 100-120VAC
35726 Cutler-Hammer HMCP015E0 Circuit Breaker 15A 3-Pole 600VAC
35796 WATLOW 866962 Temperature Probe
35796 WATLOW 866962 Temperature Probe
35846 8B2-26 SS Sprocket #40 26T 1-5/8 Bore Double Strand
35901 Furnas Electric 48HC31AA2 Melting Alloy Overload Relay
35901 Furnas Electric 48HC31AA2 Melting Alloy Overload Relay
35901 Furnas Electric 48HC31AA2 Melting Alloy Overload Relay
35906 Square D 9007-C54CS17 Limit Switch
35906 Square D 9007-C54CS17 Limit Switch
35906 Square D 9007-C54CS17 Limit Switch
35926 NCC CKK-120-461 Solid State Timer 1.2-120 Sec.
35926 NCC CKK-120-461 Solid State Timer 1.2-120 Sec.
35936 Square D KL12V20 Relay 120V 60Hz
35941 Electromatic SJ 155 120 AC Current Level Relay 120VAC
35941 Electromatic SJ 155 120 AC Current Level Relay 120VAC
36041 Dayton 1EHA1 Relay 12 Amp 11 Pin 12 VDC
36041 Dayton 1EHA1 Relay 12 Amp 11 Pin 12 VDC
36178 Allen Bradley 71A288 Contactor Coil 440/480V 50/60Hz
36178 Allen Bradley 71A288 Contactor Coil 440/480V 50/60Hz
36194 SS60BS25-15/16 Sprocket #60 25T 1-1/4ID 3/4 Pitch
36196 Sprocket #60 25T 1-1/4ID 3/4Pitch
36288 Gould Shawmut A4BY801 Fuse 801Amps 600V
36592 Mepsco Inc. B40013 Spring Assembly 6mm Wire 4-1/8 Long
36592 Mepsco Inc. B40013 Spring Assembly 6mm Wire 4-1/8 Long
36620 Omron H7ET-B Time Totalizer 1s min Gate 20ms Reset
36620 Omron H7ET-B Time Totalizer 1s min Gate 20ms Reset
36802 Sprocket #80 18T 1-1/2 Square Bore
37581 ABB AL26-30-01 Contactor 3-Pole 24VDC
37581 ABB AL26-30-01 Contactor 3-Pole 24VDC
37582 ABB AL26-30-01 Contactor 3-Pole 24VDC
37582 ABB AL26-30-01 Contactor 3-Pole 24VDC
37906 Square D 31041-400-42 Contactor Coil 110/120V 50/60 Hz
37906 Square D 31041-400-42 Contactor Coil 110/120V 50/60 Hz
37912 Littelfuse KLPC 800 Fuse 600 VAC 800A Class L
38345 Sumitomo CNHXS-6105Y-11 Gear Reducer 11:1 4.27HP @ 1750 RPM
38738 Genuine Stearns 644115609 Solanoid Valve Coil 115/208-230VAC
38738 Genuine Stearns 644115609 Solanoid Valve Coil 115/208-230VAC
38795 Telemecanique LB1LC03M53 Starter 575 VAC 23-32 Amp
38795 Telemecanique LB1LC03M53 Starter 575 VAC 23-32 Amp
38795 Telemecanique LB1LC03M53 Starter 575 VAC 23-32 Amp
38850 Efector 0GT-HB0A/LS Photoelectric Sensor 600mm
38850 Efector 0GT-HB0A/LS Photoelectric Sensor 600mm
38851 Square D HACR120-240 Circuit Breaker 30amp 1-Pole
39305 Dayton 4UX59G Motor 1/2HP 825RPM
39306 Deltrol Control 268F DPDT Relay 36VDC Coil 120VAC 15A
39312 CROWN 128012 Compression Spring 8-1/8 Length 29mm OD
39312 CROWN 128012 Compression Spring 8-1/8 Length 29mm OD
39363 General Electric 9T58K2810 Transformer .500kVA 1-Ph 60Hz
39706 BANNER STBVR81Q6 Self Checking Touch Button 20-30VAC/DC
39706 BANNER STBVR81Q6 Self Checking Touch Button 20-30VAC/DC
39719 SIEMENS 3RU1116-1CB0 Thermal Overload Relay 1.8-2.5A
39719 SIEMENS 3RU1116-1CB0 Thermal Overload Relay 1.8-2.5A
3M TELECOM SYSTEMS GROUP HAND HELD CRIMPER B95475 03B95 4036-25  vintage tool