5B M1 U2 Period 44

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b码模块对时

b码模块对时

在航天、导弹及常规武器等试验靶场中,参试系统保持时间统一的主要目的是为测控系统提供标准的时间信号和频率信号,使整个测控系统在统一的时间、频率基准下工作,保障各种测控设备获得高精度的数据。

时统设备接收标准时号(BPM、BPL或GPS信号),再产生与标准时号同步的时间码信号,提供给测控、计算机等设备。

这些设备通过时间码接口终端解调出时间信息和同步信号,以保证整个测控系统在统一的时间尺度下工作。

故设计了目前我国采用的IRIG-B码的时间信号产生器。

2 基本原理时间信号产生器的主要功能是分频、定时,将频率源送来频标的5MHz分频至1Hz,而从分频链上取得各种不同频率的信号。

本设备的秒信号可与发播的标准时号实现同步工作(定时),以提供本地标准频率和标准时间信号。

IRIG-B格式时间码(简称B码)为国际通用时间格式码,用于各系统的时间同步。

“B码解码接口卡”为EISA(或ISA)总线接口卡,将标准时统设备送来的IRIG-B (DC)码,解码出时、分、秒,并加入毫秒信息,送入主计算机,以校准本机的系统时间。

SYN1216型 IRIG-B码产生器产品概述SYN1216型IRIG-B码产生器是西安同步电子科技有限公司研发生产的一款实用电子产品,接收GPS(全球定位系统)卫星信号,使用GPS定时信号对本机进行时间同步,产生交直流IRIG-B码信号和1PPS(秒信号)同步脉冲信号,是建立时间尺度、实现时间统一同步的实用电子仪器。

产品功能1)以GPS定时信号建立时间参考;2)同步产生、输出交直流IRIG-B码;3)输出定时同步信号(1PPS);4)钟面(年月日、时分秒)显示。

产品特点a)同时提供交直流IRIG-B码信号,最多可扩展到32路;b)授时精度高;c)高可靠性;d)可长期连续稳定工作。

典型应用1)为电力厂(站)的故障录波器、事件记录仪、微机继电保护及安全自动装置、远动及微机监控系统,能量管理系统等提供时间标记;2)电力厂(站)和电网中心调度的时间统一系统及各种时间显示屏;3)电厂的DCS系统、MIS系统、抄表报价系统及需要时间信息的自动化装置。

5B-22资料

5B-22资料

15 WATT WIDE INPUT DC-DC CONVERTERSFeature•15W Isolated output • Continuous Short Circuit Protection• Efficiency 82%• Conductive EMI Meet EN55022 Class A• 2:1 Input Range • Pi Input FilterNOTE: 1.Nominal Input Voltage 24 or 48 VDCMODEL INPUT OUTPUT OUTPUT CURRENT INPUT CURRENT % EFF.CASENUMBER VOLTAGE VOLTAGE MIN.MAX.NO LOAD FULL LOAD 5B-115B-125B-135B-145B-155B-165B-215B-225B-235B-245B-255B-2618-36 VDC36-72 VDC 5 VDC 12 VDC 15 VDC ±12 VDC ±15 VDC ±5 VDC 5 VDC 12 VDC 15 VDC ±12 VDC ±15 VDC ±5 VDC150 mA 65 mA 50 mA ±35 mA ±25 mA ±75 mA 150 mA 65 mA 50 mA ±35 mA ±25 mA ±75 mA3000 mA 1250 mA 1000 mA ±625 mA ±500 mA ±1500 mA 3000 mA 1250 mA 1000 mA ±625 mA ±500 mA ±1500 mA20 mA 20 mA 20 mA 30 mA 30 mA 30 mA 10 mA 10 mA 10 mA 15 mA 15 mA 15 mA800 mA 780 mA 780 mA 780 mA 780 mA 780 mA 390 mA 380 mA 380 mA 380 mA 380 mA 380 mA788080808080808282828282BB15BSpecifications5BAll Specifications Typical At Nominal Line,Full Load and 25˚C Unless Otherwise Noted.INPUT SPECIFICATIONS:Input Voltage Range........................................................................................................................................24V .................................................................18-36V48V .................................................................36-72VInput Filter...................................................................................................................................................................................................................................Pi TypeOUTPUT SPECIFICATIONS:Voltage AccuracySingle Output....................................................................................................................................................................................................±1.0% max.Dual + Output...................................................................................................................................................................................................±1.0% max.Dual – Output...................................................................................................................................................................................................±1.0% max.Voltage Balance (Dual).....................................................................................................................................................................................................±1.0%/max.Transient ResponseSingle 25% Step Load Change..........................................................................................................................................................................................<500µsec.Dual FL,1/2L ±1% Error Band..............................................................................................................................................................................................<500µsec.Ripple and Noise,20MHz BW...................................................................................................................................................................................100mV p-p max.Temperature Coefficient............................................................................................................................................................................................±0.02%/˚Cmax.Short Circuit Protection.....................................................................................................................................................................................................Continuous Line Regulation 1Single/Dual Output.............................................................................................................................................................................±0.2% max.Load Regulation 2Single/Dual Output............................................................................................................................................................................±1.0% max.GENERAL SPECIFICATIONS:Efficiency ................................................................................................................................................................................................................................See Table Isolation Voltage............................................................................................................................................................................................................500 VDC min.Isolation Resistance.................................................................................................................................................................................................................109ohms Switching Frequency ........................................................................................................................................................................................................200KHz,min.Operating Temperature Range................................................................................................................................................................................-25°C to + 71°C Case Temperature............................................................................................................................................................................................................100˚C max.Cooling................................................................................................................................................................................................................Free-Air Convection Storage Temperature Range...................................................................................................................................................................................-40°C to + 100°C EMI/RFI......................................................................................................................................................................................................Six sided Continuous Shield Dimensions.................................................................................................................................................................................................................2 x 1 x 0.4 inches(50.8 x 25.4 x 10.2 m/m)Case Material.........................................................................................................................................................................................Black Coated Copper withNon-Conductive Base CASE BNOTE:1.Measured From High Line to Low Line2.Measured From Full Load to 1/4 Load3.A Minimum Load On the Output is Necessary to Maintain RegulationPIN CONNECTIONPin Function 1.2.3.4.5.+Input -Input +Output Common/NP-OutputNP*-NO PIN ON SINGLE OUTPUT2BEHLMAN4532 Telephone Road Suite 103 Ventura, CA 93003 80 Cabot Court Hauppauge, NY 11788(805 ) 642-0660 (800)456-2006 Fax (805) 642-0790 e-mail: sales@ (631)435-0410 (800)874-6727Fax(631)951-4341Web-site: 。

PSS 21H-2Y14 B4 I A Series 扩展字段总线模块说明书

PSS 21H-2Y14 B4 I A Series 扩展字段总线模块说明书

PSS 21H-2Y14 B4I/A Series ® HARDWAREProduct SpecificationsFEM100 Fieldbus Expansion ModuleThe Fieldbus Expansion Module (FEM100) provides four Expanded Fieldbuses to the Field Control Processor 270 (FCP270). Each of the four Expanded Fieldbuses can accommodate up to thirty-two 200Series Fieldbus Modules (FBMs).FEATURESFor typical control usage enables a FCP270 tocommunicate with up to 128 of the 200Series FBMs, over four Expanded FieldbusesRedundancy minimizes communicationinterruption from Expanded Fieldbus 1 through 4Two-Slot and Four-Slot FEM100 ExpansionBaseplates both support the 2Mbps Module Fieldbus for 200 Series (or equivalent) FBMsTwo-slot Expansion Baseplate accommodatesFEM100 modules only, used to upgrade existing FCP270 installationsFour-slot Expansion Baseplate accommodatestwo FCP270 control processors and their fiber optic splitter/combiners, plus two FEM100 modules, for new installations.Harsh (Class G3 - ISA S71.04) contaminationprotection.PSS 21H-2Y14 B4Page 2OVERVIEWThe FEM100 module provides four ExpandedFieldbuses to an I/A Series FCP270 to increase the number of 200Series (or equivalent) FBMssupported by the FCP270 modules. The FEM100 module supports the 2Mbps HDLC module Fieldbus for communication between the I/A Series® FCP270 and the 200Series FBMs (see Figure 3 on page 5).The FEM100s are installed in a DIN rail mounted Modular Two-Slot or Four-Slot Expansion Baseplate for 2Mbps communication between the FBMs and FCP270 modules (see Figure1 and Figure 2).Figure 1. Redundant FEM100 Modules on DIN Rail Mounted Modular Two-Slot Expansion BaseplateTwo-Slot Expansion Baseplate Vertical Mounted OnlyDIN RailTo/From Expanded Fieldbuses 1-4To/From Field Control Processor FEM100 Module RedundantTerminated WithTerminator P0916RBPSS 21H-2Y14 B4Page 3Figure 2. Redundant FEM100 Modules on DIN Rail Mounted Modular Four-Slot Expansion BaseplateFEM100 MODULE DESIGNFEM100 modules have a compact design, with a rugged extruded aluminum exterior for physical protection of the electronics. Enclosures specially designed for mounting of DIN rail mounted Fieldbus equipment provide various levels of environmental protection for the FEM100 modules, up to harsh environments per ISA Standard S71.04.The FEM100 can be removed/replaced from an Expansion Baseplate without removing power. Light-emitting diodes (LEDs) incorporated into the front of the FEM100 indicate module Fieldbuscommunications activity and module status.The FEM100 communicates to the FCP270 over the 2Mbps HDLC Fieldbus, as shown in Figure 3 on page 5.Four-Slot Expansion BaseplateVertical Mounted OnlyFEM100Module (Bus A)FCP270 Fault-TolerantModule PairSplitter/Combiner To/From Control Network Ethernet Fiber Switch 1/2PairTo/From Expanded Fieldbuses 3-4FEM100Module (Bus B)To/From Expanded Fieldbuses 1-2Terminated100 Mbps Orange Fiber CablesPSS 21H-2Y14 B4 Page 4HIGH AVAILABILITYA pair of FEM100 modules provides redundancy for the Extended Fieldbuses to maintain very high subsystem availability. When both modules are active, the FCP270 sends and receives communications across both A andB buses. In the case of a FEM100 module failure, the FCP270 switches all traffic to the bus with the availableFEM100 module until the failed module is replaced.Either module may be replaced without upsetting input or output communications to the other module.EXPANSION BASEPLATE MOUNTINGThe FEM100 modules mount on either the Two-Slot or Four-Slot Expansion Baseplate. These baseplates are DIN rail mounted and vertically oriented only. These baseplates include signal connectors for the FEM100s, redundant independent dc power connections, and four cable connections to the2Mbps HDLC Expanded Fieldbuses.The Two-Slot Expansion Baseplate includes a redundant I/O cable connection to the FCP270s. One connector supports both A and B buses, while the other is terminated. Alternatively, both connectors can be used in conjunction with a FieldbusSplitter/Terminator (P0926KW).The Four-Slot Expansion Baseplate includes two slots for mounting a fault-tolerant pair of FCP270s and their fiber optic splitter/combiners.For more information on these baseplates, refer to DIN Rail Mounted Modular Baseplates(PSS 21H-2W6 B4).MODULE FIELDBUS COMMUNICATIONThe Expansion Baseplates support the 2Mbps module Fieldbus. They connect to the 2Mbps module Fieldbus for communication to all 200Series DIN I/O FBMs, the Siemens APACS+™ and Westinghouse competitive migration modules (see “Devices Supported” on page7).The 2Mbps module Fieldbus is redundant and all 200Series modules can receive/transmit messages over both A and B buses.PSS 21H-2Y14 B4Page 5Figure 3. Typical Expanded Fieldbus Network Configuration (Simplified) With Four Expanded Baseplate GroupsEXPANDED FIELDBUS 1EXPANDED FIELDBUS 2EXPANDED FIELDBUS 3EXPANDED FIELDBUS 4NOTE: First and Last Fieldbus Connector in each Chain must be terminated (P0916RB).PSS 21H-2Y14 B4 Page 6EXPANDED FIELDBUS EXTENSION VIAFCM2F2/FCM2F4/FCM2F10 FIELDBUS COMMUNICATIONS MODULESThe FCM2F2/FCM2F4/FCM2F10 Fieldbus Communications Modules provide baseplate-to-baseplate fiber optic extension of the Expanded Fieldbuses. This allows DIN rail mounted Fieldbus Modules (FBMs) to be locally, or remotely distributed in multiple enclosures for strategic placement of input/output points.The three versions of the FCM2Fs – FCM2F2,FCM2F4, and FCM2F10 – offer three different maximum baseplate-to-baseplate fiber optic cabling distances: up to 2 km (1.24 mi), up to 4 km (2.48 mi), and up to 10 km (6.2 mi), respectively. FCM2F2 and FCM2F4 are used with multimode graded-index fiber cable, and FCM2F10 is used with single-mode fiber cable.The FCM2Fs are mounted on any baseplate which accepts both FCMs and FBMs. For the Expanded Fieldbuses, FCM2Fs must be installed redundant, one on each end of one of the “A” and “B” cables of the Expanded Fieldbuses (four FCM2Fs total).The FCM2Fs can extend any of the Expanded Fieldbuses between the FEM100 baseplate and the FBM baseplates. The redundant FCM2F pair on the baseplate-side of the fiber optic extension may be installed on the first FBM baseplate in the chain, or on a separate baseplate, such as an FCM/FBM 2-position baseplate. Keeping the FCM2F pair on a separate baseplate allows the baseplate chain to use all 32 possible slots for FBMs, while including the FCM2F pair on the first baseplate in the chain leaves 30 slots for FBMs. Figure4 illustrates this configuration for the first Expanded Fieldbus.PSS 21H-2Y14 B4Page 7Figure 4. FCM2F2/FCM2F4/FCM2F10 Fieldbus Communications Modules on Expanded FieldbusDEVICES SUPPORTEDThe FEM100 supports the following devices on the 2Mbps module Expanded Fieldbus:All 200 Series DIN rail mounted FBMs (FBM201,FBM202, and so forth)Fieldbus Communications Modules,FCM2F2/FCM2F4/FCM2F10, for remote FieldbusesField Device Systems Integrator (FDSI) modules DCS Fieldbus Modules for Siemens APACS+systemsDCS Fieldbus Modules for WestinghouseWPDF® systems.2 Mbps HDLC Expanded Module Fieldbus (Shielded Twisted Pair Cables)FCP270 Control Processor F C P 270F E M 100F E M 1002 Mbps HDLC Module Fieldbus (Shielded Twisted Pair Cables) Includes Fieldbus A and BFEM100s (Redundant)Redundant Fieldbus F B MEXPANDED FIELDBUS 1F B MF B MIncludes Fieldbus A and B F C P 270(Fault-Tolerant)F C M 2FF C M 2FTo Next Baseplate in Chain(Chain has up to four Baseplates,32 FBMs total)F C M 2FF C M 2FF C M 2FF C M 2FABORBA (Similar for Expanded Fieldbuses 2-4)Redundant Fieldbus F B MEXPANDED FIELDBUS 1To Next Baseplate in Chain(Chain has up to four Baseplates,30 FBMs total)(Similar for Expanded Fieldbuses 2-4)FCM2F2/4/10s (Redundant) InFCM2F2/4/10s (Redundant) InF C M 2FF C M 2FFiber Optic Cables (A and B)Fiber Optic Cables (A and B)Shielded Twisted Pair Cables FCM/FBM 2-Position BaseplateFCM/FBM 2-Position BaseplateFirst FCM/FBM Baseplate In ChainFirst FCM/FBM Baseplate In Chain(Four Expanded Fieldbuses)(A and B)PSS 21H-2Y14 B4Page 8NOTEExisting 200Series FBMs must be upgraded with I/A Series system 8.3 release IOM files to support the Expanded Fieldbus.LED INDICATORSLight-emitting diodes (LEDs) on the front of the FEM100 module provide visual indication of the:FEM100 operational status - power and watchdog timerHDLC transmit/receive - for Field Control ProcessorsHDLC transmit/receive - for Expanded Fieldbuses 1-4FUNCTIONAL SPECIFICATIONSProcess I/O CommunicationsMODULE FIELDBUS COMMUNICATIONSTransmission Rate2 Mbps for 200 Series DIN FBMsProcess I/O Capacity (2 Mbps Fieldbus)CABLE LENGTHFCP270 Fieldbus and Expanded Fieldbuses (1-4) without FCM2FsThe cable length of the Fieldbus cannot exceed 60m (198ft) (see Figure 5)Figure 5. Expanded Fieldbus Cable Length RestrictionsFCP270 Fieldbus and Expanded Fieldbuses (1-4) with FCM2FsThe cable (not counting the fiber optic cabling provided by the FCM2F2/4/10 modules) cannot exceed 60m (198ft) (see Figure 6)Figure 6. Expanded Fieldbus Cable Length Restrictionsw/FCM2FsFirstLast in Chain FCP FCP FEMFEMBase PlateFBM Base PlateFBM Base PlateFBM Base PlateFBM 60 m (198 ft)FirstLast in Chain FCP FCP FEMFEMBase PlateFBM Base PlateFBM Base PlateFBM Base PlateFBM 60 m (198 ft)60 m (198 ft)FCP/FEM Baseplate FCPBaseplate FEMBaseplate FirstLast in Chain60 m (198 ft)10 km*(6.2 mi)Chain 60 m (198 ft)60 m (198 ft)10 km*(6.2 mi)FCP/FEM Baseplate FCPFEMthe use of four pairs of FCM2F10s.PSS 21H-2Y14 B4Page 9 FUNCTIONAL SPECIFICATIONS (CONTINUED)200 SERIES FBMS32 (maximum) Fieldbus Modules per ExpandedFieldbus (four per FEM100 pair).Up to 128 FBMs for typical control usage.Number of FBMs depends on control processor sizing constraints (refer to FCP270 SizingGuidelines (B0700AV)).Power RequirementsINPUT VOLTAGE RANGE21 to 26 V dcCONSUMPTION2.2 W (maximum)Regulatory ComplianceELECTROMAGNETIC COMPATIBILITY (EMC) European EMC Directive 89/336/EECMeets: EN 50081-2 Emission standardEN 50082-2 Immunity standardEN 61326 Annex A (Industrial Levels)CISPR 11, Industrial Scientific and Medical(ISM) Radio-frequency Equipment -Electromagnetic Disturbance Characteristics- Limits and Methods of MeasurementMeets:Class A LimitsIEC 61000-4-2 ESD Immunity6 kV current dischargeIEC 61000-4-3 Radiated Field Immunity10 V/m at 26 to 1000 MHzIEC 61000-4-4 Electrical FastTransient/Burst Immunity2 kV on I/O, dc power and communicationlinesIEC 61000-4-5 Surge Immunity2kV on ac and dc power lines; 1kV on I/Oand communications linesIEC 61000-4-6 Immunity to ConductedDisturbances Induced by Radio-frequencyFields10 V (rms) at 150 kHz to 80 MHz on I/O,dc power and communication linesELECTROMAGNETIC COMPATIBILITY (EMC)(CONT.)IEC 61000-4-8 Power Frequency MagneticField Immunity30 A/m at 50 and 60 HzPRODUCT SAFETYUnderwriters Laboratories (UL) for U.S. andCanadaUL/UL-C listed as suitable for use inUL/UL-C listed Class 1, Groups A-D;Division 2; temperature code T5 enclosurebased systems. These modules are also ULand UL-C listed as associated apparatus forsupplying non-incendive communicationcircuits for Class 1, Groups A-D hazardouslocations when connected to specifiedI/A Series processor modules as describedin the I/A Series DIN Rail MountedSubsystem User’s Guide (B0400FA).Communications circuits also meet therequirements for Class2 as defined inArticle725 of the National Electrical Code(NFPA No.70) and Section 16 of theCanadian Electrical Code (CSA C22.1).Conditions for use are as specified in theI/A Series DIN Rail Mounted SubsystemUser’s Guide (B0400FA).European Low Voltage Directive 73/23/EECand Explosive Atmospheres (ATEX) directive94/9/ECCENELEC (DEMKO) certified as EEx nA IICT4 for use in CENELEC certified Zone 2enclosure certified as associated apparatusfor supplying non-incendive field circuits forZone 2, Group IIC, potentially explosiveatmospheres when connected to specifiedI/A Series processor modules as describedin the I/A Series DIN Rail MountedSubsystem User’s Guide (B0400FA). Calibration RequirementsCalibration of the module is not required.PSS 21H-2Y14 B4Page 10ENVIRONMENTAL SPECIFICATIONS(1)OperatingTEMPERATURE-20 to +70°C (-4 to +158°F)RELATIVE HUMIDITY5 to 95% (noncondensing)ALTITUDE-300 to +3,000 m (-1,000 to +10,000 ft) StorageTEMPERATURE-40 to +85°C (-40 to +185°F)RELATIVE HUMIDITY5 to 95% (noncondensing)ALTITUDE-300 to +12,000 m (-1,000 to +40,000 ft) ContaminationSuitable for Class G3 (Harsh) environments as defined in ISA Standard S71.04, based on exposure testing according to EIA Standard 364-65, Class III. Vibration0.75 g from 5 to 500 HzPHYSICAL SPECIFICATIONSMountingThe redundant installation consists of two modules. A single module can also be used.FEM100 mounts on a Two-Slot (P0973CG) orFour-Slot (P0973CN) Expansion Baseplate. These baseplates can be mounted on a vertical DIN rail. Refer to PSS21H-2W6 B4 for details.Mass0.6 kg (1.3 lb) approximate (each module)Part NumberP0973CA DimensionsHEIGHT99 mm (3.9 in)114 mm (4.5 in) including mounting lugs WIDTH44.6 mm (1.75 in)DEPTH105 mm (4.12 in)(1)The environmental limits of this module may be enhanced by the type of enclosure containing the module. Refer to the applicableProduct Specification Sheet (PSS) which describes the specific type of enclosure that is to be used.PSS 21H-2Y14 B4Page 11FOR MORE INFORMATIONFor more information refer to the following ProductSpecification Sheets (PSS):PSS Number DescriptionPSS 21H-1B9 B3Field Control Processor 270 (FCP270)PSS 21H-2W1 B3DIN Rail Mounted Subsystem OverviewPSS 21H-2W6 B4DIN Rail Mounted Modular BaseplatesPSS 21H-2Y3 B3Fieldbus Communications Module,FCM2F2/FCM2F4/FCM2F10PSS 21H-2Y14 B4 Page 12Invensys Operations Management5601 Granite Parkway Suite 1000 Plano, TX 75024United States of AmericaGlobal Customer SupportInside U.S.:1-866-746-6477Outside U.S.:1-508-549-2424 or contact your local Invensys representative. Website: Invensys, Foxboro, I/A Series, Iand the Invensys logo are trademarks of Invensys plc, its subsidiaries, and affiliates. All other brands and product names may be the trademarks of their respective owners.Copyright 2005-2011 Invensys Systems, Inc. All rights reserved. Unauthorized duplication or distribution is strictly prohibited.MB 21A1111。

上海牛津英语5B M1 Unit2第三课时课件

上海牛津英语5B M1 Unit2第三课时课件

---Great! It’s loud.
1. What’s Ben doing? 2. Who can play the recorder? 3. What does Kitty draw on the recorder?
4. Is the recorder loud or quiet?
5. What does Ben need for making a recorder?
6. We can see the dolphins in the Ocean Park. We can see the seals, too.
There you are.
musical instrument
乐器
shaker /ei/ 摇晃器
--动词--Shake your shaker!
Is it loud or quiet?
You …
an empty paper cup
some beans or rice
some paper
asleep --形容词-- awake sleep --动词-wake
写出下列单词的反义词
1. loud--- quiet
3. asleep--- awake
2. lady--- gentleman
4. wake--- sleep
5. angry--- happy
7. inside--- outside
hammer
Do you want both…(s)?
No, the…one, please.
screwdriver Do you want both…(s)?
No, the…one, please.
full or empty?

数字时间继电器 TMC5B 说明书

数字时间继电器 TMC5B 说明书

DIN72×72mm 多功能时间继电器。

●上排红色下排绿色LED数码管显示,高亮清晰。

●方形大按键设计易手指操作,功能按键不同颜色易区分。

●具备键盘锁功能,防止误操作。

●配备卸装型接线保护盖设计,防止触电。

●多功能模式,具备数据储存停电记忆。

●0.01s~9999h时间范围可任意设置。

请参照说明书使用,以确保产品的安全和正常使用!●型号标准■规格性能●技术参数TMC5B !*注:本说明书仅为TMC5B的操作说明书,TMC5B-A3和TMC5B-2P说明书请另行参阅其说明书。

■外形/尺寸/安装●面板说明●外形尺寸(单位:mm)■仪表接线●接线图小时灯/分灯/秒灯倒计时指示灯4上位键~MODE功能模式键复位键面板厚度为1~6mm●安装及开孔尺寸(单位:mm)12V控制暂停电源S运行模式■功能模式设定流程图表示可设定HOLD保持信号或延时可调信号输出表示输出延时可调信号后释放表示HOLD保持信号输出■工作模式图■注意事项1.仪表的信号线和电源线不要和动力、高压、高电流等线在同一线管配线,会引起噪声误动作,请尽量远离这些强电电线,进行独立配线,并将信号线尽量缩短配线距离。

2.输出继电器请绝对不要超出其开关容量,要按额定值的负载,否则会使接点熔接,接触不良,甚至烧毁,如需接超出其容量时应外接合符要求容量的继电器或接触器。

3.如使用较频繁工作的时候,请尽量利用复位信号端进行复位,避免用电源进行通断,这样可以延长产品的使用寿命。

4.电源通断间隔须在0.5秒以上。

U2B芯片应用原理

U2B芯片应用原理

U2B芯片应用原理一、U211B芯片的基本原理U211B芯片采用先进的CMOS工艺制造,具有低功耗、高交叉耦合电压和强抗干扰能力等特点。

它内部集成了计数器、移位寄存器、数据缓冲器、I/O端口和时钟发生器等功能模块,可以实现数据的输入、输出、存储和处理等操作。

1.时钟发生器:U211B芯片内部集成了时钟发生器,可以向芯片提供稳定的时钟信号,控制芯片的工作频率和时序。

2.输入和输出:U211B芯片具有多个输入和输出引脚,可以通过这些引脚与外部设备进行数据传输和通信。

3.计数器:U211B芯片内部集成了计数器模块,可以实现计数功能。

计数器可以用于控制信号的计数、频率的计数以及时间的计数等。

4.移位寄存器:U211B芯片内部还集成了移位寄存器模块,可以实现数据的移位操作。

它可以将数据按指定的位数进行左移或右移,实现数据的分发和合并。

5.数据缓冲器:U211B芯片内部还具有数据缓冲器模块,可以暂时存储数据。

数据缓冲器可以实现数据的输入、输出和中转,提高数据的传输效率和可靠性。

二、U211B芯片的应用原理1.电源控制:U211B芯片可以通过输入/输出引脚与电源模块进行通信,实现对电源的控制和管理。

例如,通过控制引脚输出高电平或低电平信号,可以开启或关闭电源,实现电器的开关机控制。

2.数据处理:U211B芯片内部的计数器和移位寄存器模块可以实现对数据的处理。

例如,可以使用计数器模块获得时间、频率和速度等数据,并结合移位寄存器模块进行数据分析和处理。

3.通信接口:U211B芯片可以通过串行通信接口与其他设备进行数据交互。

例如,可以通过串行通信接口与计算机进行数据传输、控制和指令交互,实现设备的远程控制和监控。

4.外设控制:U211B芯片可以与各种外部设备进行连接,通过输入/输出引脚与外设进行数据传输和控制。

例如,可以通过U211B芯片的引脚与显示屏、键盘、灯光等外设进行连接,实现对外设的控制和管理。

5.信号处理:U211B芯片内部的数据缓冲器模块可以实现信号的输入、输出和存储。

CITIZEN LED灯包产品说明书:CLL020-1202A1-503M1A2

CITIZEN LED灯包产品说明书:CLL020-1202A1-503M1A2

AnodeMarking 1Cathode(Tc Measurement Point) Marking 2Marking 1 : Serial No.Marking 2 : 12 02 50 M16. Reliability(1)Datails of the tests(2)Judgement Criteria of Failure for Reliability Test(Ta=25C)U defines the upper limit of the specified characteristics. S defines the initial value.Note : Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be return to the normal ambient conditions after the completion of each test.Symbol CITILEDNameCLL020-1202A1-503M1A2>U X 1.1<S X 0.85I F =120mA Forward Voltage Total Luminous Flux85 C, 85 %RH for 500 hours -40 C × 30 minutes – 100 C × 30 minutes, 100 cycleThermal Shock Test I F =120mAVF ΦvTest ItemTest ConditionSymbol Measuring ConditionJudgement Criteria for FailureMeasuring Item Continuous Operation TestLow Temperature Storage Test High Temperature Storage Test Moisture-proof Test Ta=25 C, I F =120 mA× 1000 hours(with Al-fin)I Fmax =240 mA Tjmax=150C × 1000 hours(with Al-fin)-40 C × 1000 hours 100 C × 1000 hours< Example of indication label >1. TYPE e.g. CLL020-1202A1-503M1A22. P.No. (Cutomer's P/N) e.g. 50008-010-*******M13. Lot No.- First and second letter: Last digit of the year e.g. 11 : year 2011 - Third letter: Production month e.g. 8 : AugustNote: October, November and December are designated - Forth letter: CE's control number e.g. 50354. QuantitySymbol Product 54 pcs/tray< Packing figure >CUSTOMERPASSCITIZEN ELECTRONICSTYPE P. NO Lot No Q'ty : CLL020-******-*******: ******: *******: ***---(1)---(2)---(3)---(4)3. Precautions for product assembly-When the LED package is attached to the heat sink by M3 screws, please be careful not to applytoo much stress to the LED package. For example, fix the screws firmly after temporarily fixing them.-Attachment to heat sink conditions such as tightening torque for screws should be optimized in accordance with the specifications for heat sinks. In addition, asperity or burrs harms the thermal connection between Recommended installation screw pitch13.513.57. Lighting at a low currentA minimum current value of lighting of all dice is 10mA.When a minimum current is applied, LED dice may look different in their brightness due tothe individual difference of the LED element, and it is not a failed product.8. Please be aware that this product should not come into contact with any other partsin assembled status.9. Drive circuit- A constant current circuit is recommended as a drive circuit.And when two or more LED packages are connected, the series connectionbetween each package is recommended.- Please design a circuit that prevents any reverse voltage (excess current) from beingapplied to this product instantaneously when the circuit is ON or OFF.10. Heat generation- As this product is designed with consideration of the heat release property of module,a heat release design is required to use this product efficiently.Please ensure that heat generation is not in excess of the absolute maximum rating.(Refer to 4-1 Performance)- Factors responsible for an increase in temperature include heat generation attributed toambient temperature conditions or power dissipation. Thus, drive conditions should betaken into consideration, depending on ambient temperature (Ta).11. Recommended soldering condition (This product is not adaptable to reflow process)- Manual soldering- Soldering shall be implemented using a soldering bit of 40W or less with a temperature350°C or less within 3.5 seconds for one land.(Recommended condition in a case of lead-free solder condition)- No external force shall be applied to resin part during soldering.- Next process of soldering should be carried out after the product has returned to ambient temperature. - For soldering correction- Regarding soldering correction, above conditions shall be used.- Contacts number of soldering bit should be within twice for each terminal as a correction.* Citizen Electronics cannot guarantee if usage exceeds this recommended conditions.Please use it after sufficient verification is carried out on your own risk if necessary.Symbol CITILED12. Eye Safety- The International Electrical Commission (IEC) published in 2006 IEC 62471”2006 Photobiological safety oflamps and lamp systems” which includes LEDs within its scope.When sorting single LEDs according to IEC 62471, most white LEDs can be classified as belonging to either Exempt Group or Risk Group 1.- However, Optical characteristics of LEDs such as radiant flux, spectrum and light distribution are factors that affect the risk group determination of the LED, and especially a high-power LED,that emits light containing blue wavelengths, may have properties equivalent to those of Risk Group 2. - Great care should be taken when directly viewing an LED that is driven at high current,has multiple uses as a module or when focusing the light with optical instruments,as these actions may greatly increase the hazard to your eyes.- It is recommended to regard the evaluation of stand-alone LED packages as a reference and to evaluate the customer's final product.13. The use of Class 2 power supply is assumed for this product.14. If the product might to be used under the following conditions, the customer must evaluateits approproateness them. This product is not designed for use under the following conditions.in places where the product might:- get wet due to rain- suffer from damage caused by salt.- be exposed to corrosive gas such as Cl, H2S, NH3, SO2, Nox and so on.- be exposed to dust, fluid or oil.Symbol CITILED9. Precautions with regard to product use1. This document is provided for reference purposes only so that CITIZEN ELECTRONICS' products are used as intended. CITIZEN ELECTRONICS neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of CITIZEN ELECTRONICS or any third party with respect to the information in this document.2. All information included in this document such as product data, diagrams, charts, is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any CITIZEN ELECTRONICS' products listed in this document, please confirm the latest product information with a CITIZEN ELECTRONICS' sales office, and formal specifications must be exchanged and signed by both parties prior to mass production.3. CITIZEN ELECTRONICS has used reasonable care in compiling the information included in this document, but CITIZEN ELECTRONICS assumes no liability whatsoever for any damages incurred as a result of errors or omissions in the information included in this document.4. Absent a written signed agreement, except as provided in the relevant terms and conditions of sale for product, and to the maximum extent allowable by law, CITIZEN ELECTRONICS assumes no liability whatsoever, including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation, loss of profits, loss of opportunities, business interruption and loss of data, and disclaims any and all express or implied warranties and conditions related to sale, use of product, or information, including warranties or conditions of merchantability, fitness for a particular purpose, accuracy of information, or no infringement.5. Though CITIZEN ELECTRONICS works continually to improve products' quality and reliability, products can malfunction or fail. Customers are responsible for complying with safety standards and for providing adequate designs and safeguards to minimize risk and avoid situations in which a malfunction or failure of a product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. In addition, customers are also responsible for determining the appropriateness of use of any information contained in this document such as application cases not only with evaluating by their own but also by the entire system. CITIZEN ELECTRONICS assumes no liability for customers' product design or applications.6. Please contact CITIZEN ELECTRONICS' sales office if you have any questions regarding the information contained in this document, or if you have any other inquiries.CITIZEN Micro HumanTech is a registered trademark of Citizen Holding Co., Japan.CITILED is a registered trademark of CITIZEN ELECTRONICS CO., LTD. JapanCITIZEN ELECTRONICS CO.,LTD. JAPANDATA SHEET11/11Symbol CITILED Name CLL020-1202A1-503M1A2Ref.CE-P1467 10/11。

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Now Little Little Justin? HowHe he now?tail. How was Justin is green. is has no It sees a . Now it … . He was … frog. His …was/were… . Now his ….is/are … Her eyes are big. She is catching a fly.
In spring.
• Where does Mother Frog lay eggs?
In the river.
= Little Frog is born in the river.
be born
出生
This is Hana.
She is from Japan.
She is born in Japan.
Now he Little tail. He sees fish. How was has aJustin? How isahe now? He was …a .tail Now he is … . She has too. What does Little Justin have now? He has a tail.
Once I was a tadpole, Swimming in a pond, But now I am a big green frog, Croaking happily on my log.
tadpole
l
Whose egg(s)?
• When does Mother Frog lay eggs?
• First, _____________________. • Next, _____________________. • Finally, ____________________.
Once I was a caterpillar, Sitting on a leaf, But now I am a butterfly, Flying high in the bright blue sky.
Homework: 1.Copy the words and the sentences 2.Recite the story 3.Write:How does the frog grow up?
ቤተ መጻሕፍቲ ባይዱ
• • • • • •
In spring, some eggs were born in the river. First the eggs are___________. Next they have ____________. Then they have ____. And their tails ______. After that they have ______. Finally they are ________________.
The Cycle of the Frog
At the beginning of spring, a big frog lays many eggs in the water. They are black. Some days later, the eggs become small tadpoles. They have a big round head and a long tail. They eat float grass. They have two hind legs first, and then they have two front legs. Their tails are shorter and shorter. Their bodies become brown. At last their tails disappear and they are green now. They have a smooth, moist skin, webbed feet. They can leap with long hind legs. They are beneficial insects and the friends of human being. We should protect them.
How was his tail? How is his now. tail now? Little Justin has four legs It was … . Now it … . He sees a turtle. What does Little Justin have now? She has four legs and a big mouth. He has ...
First it is an egg. Next it was an egg. Now it is a caterpillar. Then it was a caterpillar. Now it is a green cocoon.
Finally it was a green cocoon. Now it is a beautiful butterfly.
First Next
It is an egg. It was an egg. Now it is a caterpillar. It was a caterpillar. Now it is a green cocoon.
Then
Finally
It was a green cocoon. Now it is a beautiful butterfly.
How does Little Frog grow up?
First ______________ Next______________ Then _______________ Finally_______________
Once I was a caterpillar, Sitting on a leaf, But now I am a butterfly, Flying high in the bright blue sky. Once I was a tadpole, Swimming in a pond, But now I am a big green frog, Croaking happily on my log.
They are Sawa and Tai. They are from ______.
________born in _____.
be born
出生 I am ______.
I’m from _____.
I’m born in _______. …
It is spring. Little Justin is born in a river. He is small and black.
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