西门子中国总代理PLC 代理

西门子中国总代理PLC代理PLC的硬件组成1.2.1　PLC的控制系统构成是常用自控系统模块连接图。在PLC控制系统中，CPU模块是必不可少的，它是整个系统的大脑。【通信模块】根据使用需求选配，PLC需要与外部通信时就选择通信模块。【输入模块】和【输出模块】一般都是**有，输入是为了采集外部信号，而输出是为了控制外部设备。有人说：“我用CPU只做通信，不做输入也不做输出。”在特殊情况下那样使用也是可以的。常规使用都有数字量输入、数字量输出和通信，基于这种情况，小型的CPU模块集合了数字量输入和数字量输出，也集成了对外通信端口。如果当前配置满足串口通信模块通常分为以下3类：RS-232通信模块、RS-485通信模块、RS-422通信模块。一般情况下，一个通信模块只支持一种通信方式。为了满足市场需求和兼容性，有的通信模块可能具备两种或者多种通信方式，例如有的模块支持RS-485通信和RS-232通信。同一种通信方式也可能支Function西门子中国总代理PLC代理Construction of electrical Industrial Ethernet line or startopologiesAutomatic data transmission rate detection (10/100/1000Mbps), with autosensing and autocrossover functionEasy networkconfiguration and network expansion;no limitation on networkexpansion with cascading of the switchesNetwork topology andnetwork configuration西门子中国总代理PLC 代理The SCALANCE XB-000 switches aretypically installed with the stations to be connected in a controlcabinet or control box.When configuring the network, it isnecessary to observe the following boundary conditions:Length ofthe TP cable between two SCALANCE XB-000 switches:max. 100m西门子中国总代理PLC 代理max. 10 m via patch cables with TP Cordmax. 100 mvia Industrial Ethernet FC Outlet RJ45, IE FC Standard Cable and TPCordLength of the fiber-optic cables:max. 5 km with IndustrialEthernet FO cablesMultimodemax. 26 km with Industrial Ethernet FOcablesSingle mode西门子中国总代理PLC 代理Electrical star topology withSCALANCE XB005 or SCALANCE XB005GElectrical line topology withSCALANCE XB005 and XB008, or SCALANCE XB005G and XB008GMixed startopology with SCALANCE XB004-1 or SCALANCE XB004-1GElectrical startopology with SCALANCE XB005G and connection to a Gigabit EthernetringDiagnosticsThe following information is displayed by LEDs onsite:PowerPort statusData trafficTechnicalspecifications西门子中国总代理PLC 代理Articlenumber6GK5004-1BD00-1AB26GK5004-1BF00-1AB26GK5004-2BF00-1AB26GK5005-0BA00-1AB26GK5008-0BA10-1AB2producttypedesignationSCALANCE XB004-1SCALANCE XB004-1LDSCALANCESCALANCE XB005SCALANCE XB008transferratetransfer rate10 Mbit/s, 100 Mbit/sinterfaces forcommunication integratednumber of electrical connections● fornetwork components or terminal equipment4; RJ454; RJ455; RJ458;RJ45number of 100 Mbit/s SC ports● for multimode10● forsingle mode (LD)12interfaces other● for power supply1type ofelectrical connection3-pole terminal block3-pole terminalblocksupply voltage, current consumption, power losstype of voltage1 of the supply voltageDC● supply voltage 1 ratedvalue24 V24 V● power loss [W] 1 ratedvalue2.64 W2.4 W1.68 W2.88 W19.2 ... 28.8 V19.2 ... 28.8 V● consumedcurrent 1maximum0.11 A0.1 A0.07 A0.12 A● type ofelectrical connection 1 for power supply● product component 1fusing at power supply inputYesYes● fuse protection type 1 atinput for supply voltage0.6 A / 60 V0.6 A / 60 Vtype of voltage 2of the supply voltage● supply voltage 2 rated valueambientconditionsambient temperature● duringoperation-10 ... +60 °C-10 ... +60 °C● duringstorage-40 ... +80 °C-40 ... +80 °C● duringtransportrelative humidity● at 25 °C without condensationduring operation maximum95 %95 %protection classIPIP20design, dimensions andweightsdesignBoxwidth45 mmheight100 mmdepth87 mmnetweight0.165 kg0.205 kg0.18 kgfasteningmethod● 35 mm top hat DIN rail mounting● wallmounting● S7-1500 rail mountingNoNoproduct functionsmanagement, configuration, engineeringproductfunction● multiport mirroring● CoSPROFINET conformityclassAproduct function switch-managedproduct functionsredundancy● Parallel Redundancy Protocol (PRP)/operation inthe PRP-network● Parallel Redundancy Protocol (PRP)/RedundantNetwork Access (RNA)standards, specifications,approvalsstandard● for FMFM3611: Class 1, Divison 2, Group A,B, C, D / T4, CL.1, Zone 2, GP. IIC, T4FM3611: Class 1, Divison 2,Group A, B, C, D / T4, CL.1, Zone 2, GP. IIC, T4FM3611: Class 1,Divison 2, Group A, B, C, D / T4, CL.1, Zone 2, GP. IIC,T4● for safety from CSA and ULUL 60950-1, CSA C22.2 No.60950-1UL 60950-1, CSA C22.2 No. 60950-1UL 60950-1, CSA C22.2 No.60950-1● for emitted interferenceEN 61000-6-4 (Class A)EN61000-6-4 (Class A)EN 61000-6-4 (Class A)● for interferenceimmunityEN 61000-6-2EN 61000-6-2EN61000-6-2MTBF232 y238 y241 y214 yreferencecode● according to IEC 81346-2KFKF● according to IEC81346-2:2019KFEKFEstandards, specifications, approvalsCEcertificate of suitability CE markingstandards, specifications,approvals hazardous environmentsstandard for hazardous zoneEN60079-0:2009, EN60079-15:2010, II 3 G Ex nA IIC T4 Gc, KEMA07ATEX0145 XEN 60079-0:2009, EN60079-15:2010, II 3 G Ex nA IIC T4Gc, KEMA 07ATEX0145 Xcertificate of suitability● CCC forhazardous zone according to GB standardYesstandards,specifications, approvals othercertificate of suitabilityEN61000-6-2, EN 61000-6-4EN 61000-6-2, EN61000-6-4● C-Tick● KC approvalArticlenumber6GK5004-2BD00-1AB26GK5005-0GA10-1AB26GK5008-0GA10-1AB26GK5004-1GL10-1AB26GK5004-1GM10-1AB2SCALANCE XB004-2SCALANCE XB005GSCALANCE XB008GSCALANCE XB004-1GSCALANCE XB004-1LDG10 Mbit/s, 100 Mbit/s, 1 000 Mbit/s2numberof 1000 Mbit/s SC ports1● for single mode (LD)1interfacesother4 W10.5 W12.5 W0.165 A0.44 A0.52 A0.5A / 60 V0.172 kg0.188 kg0.21 kg0.168 kgproductfeatures, product functions, product components generalnumber ofautomatically learnable MAC addresses1 024product functionsmanagement, configuration,engineering持多种协议*1种是根据通信接口的不同来分类，如CPU模块带RS-485通信接口、RS-232通信接口或者网口等。同的设备工作方式也不一样。计算机的工作方式为等待命令的工作方式，而PLC的工作方式为循环扫描的工作方式。其工作原理如下：当S闭合时，光电耦合器导通，LED点亮，表示输入开关S处于接通状态。此时A点为其工作原理如下：当S闭合时，光电耦合器导通，LED点亮，表示输入开关S处于接通状态。此时A点为高电平，继电器输出型PLC的负载电源可以是交流电，也可以是直流电，为有触点开关，带负载能力比较强，一般在2A左右，但寿命比无触点开关要短，开关动作频率也相应低一些，一般小于等于1Hz。也可以用晶体管输出模块控制直流中间继电器或者接触器，进而控制220V或者380V的交流负载。西门子中国总代理PLC代理4．电源PLC的电源是指将外部输入的交直流电源转换成供CPU、存储器、输入和输出接口等内部电路工作需要的直流电源。许多PLC的直流电源采用外部开关电源，不仅可以给模块供电，还可以为输入和输出设备提供负载电源。西门子中国总代理PLC代理一般继电器输出的CPU模块，输入电源是AC220V。而晶体管输出的CPU模块，输入电源是DC24V。有些CPU模块还集成了负载电源。【扩展理解】　很多小型CPU模块集成直流24V负载电源，此电源的带负载能力很小，一般只有几百毫安。当所需负载电流*出该集成电源时需要外接电源。电源一般不能并联使用，如果CPU集成的24V电源不够，则负载电源可全部采用外部24V电源。1.4　PLC编程的学习路线西门子中国总代理PLC代理本书不仅讲述方法和经验，还包含学习思路的指引。跟着教程和案例，学习，练习，再实践。还要善于做笔记和自我方便以后回顾。不懂的地方可研究与之相关的知识，及时疑问并想办法解决。随着时间的推移，大家就会积累自己的经验并慢慢感悟，逐渐就能独立编程。就像开车一样，拿到驾照之后也西门子中国总代理PLC代理