串口服务器及相关知识培训.pdf

Serial Device Servers Product TrainingAlan Hsu ICOM Div. PM Mar, 2011Evolution of Industrial CommunicationAsynchronous serial connections are still the most common device interfaceVery limited Serial ports on PC.Support RS-232 only, Extra Converter for RS-422 and RS- 485 connectionBarcode ScannerLabel PrinterEvolution of Industrial Communication -Serial Comm. CardsCOM ports extension by PCI or ISA serial comm. cardsSupport RS-232/422/485Serial ports protection–ESD protection–EFT protection–Isolation protectionBarcode ScannerCredit Card Reader Pole DisplayLabel PrinterSerial Communication CardsComplete Serial Comm. CardsComplete solutions for multiple industrial communication interfaces (RS- 232/422/485, CAN, current loop, Profibus, CANOpen) with different buses (PCI, ISA, PC/104, PC/104+)Wide range of ESD, EFT, isolation protection avoids device damage from irregular voltage attackExtra high-speed serial transmission rate (up to 921.6 Kbps) to fulfill critical application’s needs.Built-in 128-byte FIFO to reduce CPU loading of systemAutomatic RS-485 flow control to simplify programming effortVarious Drivers SupportISAPCIUniversal & Low Profile PCIPC/104&104+Windows CE.NET / XP EmbeddedLinux 2.4/2.6 (Red Hat ,Suse ,Debian ,Fedora Core 2, Fedora Core 3, Mandrake)Windows 2000/XP/Vista/7 32/64-biteAAsynchronous serial connections are still the most common industrial devices’ interfaceInterface type:–RS-232–RS-422–RS-485Common Uses–Configuration and setup–Collecting data–Monitoring process–HMI interfaceThe Ubiquitous Serial Connection…RS-232Some Industrial Devices with Serial PortsPLCTemperature ControllerBarcode ScannerMarquee DisplayPanel / Label PrinterScaleAC Power MonitorVision SystemsCleanroom Particle CounterRFID ScannerRTUHMIDedicated connections only–Typically one PC/host per serial device–One protocol for all devicesVery limited distance–RS-232: 50 Ft. (15m)–RS-422/485: 4000 Ft. (1200m)Poor performance–Typical speed of 9,600 bps to 115,200 bps–Can’t achieve to Mbps…Installation cost–Separate and dedicated cable per serial deviceThe Limitations of Serial PortsSerial Device ServersQuickly and easily replace limited distance serial connection with an anywhere/anytime access–Leverage existing Ethernet and IP networking infrastructure –Access anywhere if there’s network connection–No distance limitations!What if You Could…RS-232RS-232RS-232Device ServerLAN / WANDevice Server is a gateway between serial devices and Ethernet (TCP/IP)Serial data is encapsulated in IP packets and transported over the network - like a letter in an envelope via the postal serviceIt all Starts with a Device ServerEthernetRS-232/422/485 SerialDevice ServerRS-232/422/485 Serial NetworkEthernetMarquee DisplayEKI-152X Hardware Overview•Dual 12 ~ 48 Vdc inputs • Reverse power polarity protection • Fault relay for external PLC/controller •IP30 metal chassis • Din-rail or wall mount • Wide operating temperature -10 ~ 60C• Dual/Redundant 10/100Base-Tx Ethernet ports • Built-in 1.5KV magnetic isolation protection• Serial ports RS- 232/422/485 software selectable • D-Sub9 convert to terminal connector accessory is available : OPT1-DB9-AE• Serial ESD protection: 15KV for all signals • 1KV burst (EFT), 0.5KV surge protection for power inputsD-Sub9 female to 4-pin terminal blockSuitable for RS-422/485 interfaceIncluding 120Ω terminated resister on/off selectionStock available–MLP: USD$10-/eaOPT1-DB9EKI-1528/1526 Hardware Overview•IP30 metal chassis • Front-end LED display • Wide operating temp. ( -10 ~ 60C) • Hardware reset button • Restore to default • Serial console port• Supports 110 ~ 240 VAC/VDC power input • Dual 10/100Base-Tx Ethernet ports for LAN redundancy• 8 or 16 RS-232/422/485 software selectable serial ports • 15KV ESD protection for all signals • RJ45 connectorsAdvantech Serial Device Server UtilityNetwork enable existing COM-port based softwareFor Windows 2000/XP/Vista/7 (both 32/64-bit)Supports up to 4096 virtual COM portsAuto configuring all serial ports by simple clickingEasy setting thru. 3 Steps setup wizard to create Virtual COM port简体中文版简体中文版 即将问世即将问世轻松三步骤轻松三步骤 设定虚拟串口通信埠设定虚拟串口通信埠Web Browser ConfigurationSuitable for who don’t need Virtual COM mode (thus he don’t need to install Windows Driver)Setting all of parameters easily–IE, Firefox, Safari…There are several modes of operation, depending on application requirementsTypical modes are:–TCP server w/ COM redirector–Pair Configuration (serial extension cord)–TCP Server (devices polled by host PC)–TCP Client (event driven devices – barcode scanner)–Modbus Gateway (Modbus TCP to Modbus ASCII/RTU)Serial Device Server Operating ModesCOM port redirection software (included in the utility) is installed on computerRemote devices are addressed as virtual COM portsApplication: legacy PC-based software applicationMode: TCP Server w/Redirector (VCOM)WindowsNative COM Port DriverLegacy Applica。