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Serial Getting Started with Your PCI Serial Hardware and Software for Windows Me/9 x PCI Serial for Windows Me/9x September 2000 Edition Part Number 321824E-01[...]

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Important Information Warranty The serial hardware is warranted against defects in materials and workmanship for a period of one year from the date of shipmen t, as evidenced by receipts or othe r documentation. National Instruments will, at i ts option, repair or replace equipment that pro ves to be defective during the warranty period. This warra[...]

Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC places digital electronics into two c lasses. These classes are known as Class A (for use in industria l- commercial locations only) or Class B (for [...]

• Connect the equipment into an outlet on a circuit different f rom that to which the receiver is connected. • Consult the dealer or an experienced radio/T V technician for help. Canadian Departmen t of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil n[...]

© National Instruments Corporation vii PCI Serial for Windows Me/9x Contents About This Manual Conventions ............ .............. .............. .............. .............. .............. ............... .............. .... x i Related Documentation ............ .............. .............. .............. .............. .............. ....[...]

Contents PCI Serial for Windows Me/9x viii ni.com Advanced Port Settings ............ .............. .............. .............. ............... .............. 3-3 Transceiver Mode ................. .............. ............... .............. .............. ... 3-4 Use FIFO Buffers ................. .............. ............... ..............[...]

Contents © National Instruments Corporation ix PCI Serial for Windows Me/9x Figures Figure 2-1. Add/Remove Programs Properties Dialog Box..................... ................ 2-1 Figure 2-2. NI-Serial Setup Screen ................ .............. .............. .............. .............. .. 2-2 Figure 2-3. PCI Serial Board Installation ........[...]

© National Instruments Corporation xi PCI Serial for Windows Me/9x About This Manual This manual contains instructions to help you inst all and configure the National Instruments serial hardware and the NI-Serial software for W indo ws Me/9 x . This manual includes information about the PCI-232/2, PCI-232/4, PCI-232/8, PC I-232/16, PCI-485/2, PCI-[...]

About This Manual PCI Serial for Windows Me/9x xii ni.com monospace bold Bold text in this font denotes the messages and responses that the comput er automatically prints to the screen. This font also emphasizes lines of code that are dif ferent from the other examples. PCI serial boards PCI serial boards refers to al l port versions of the PCI ser[...]

© National Instruments Corporation 1-1 PCI Serial for Windows Me/9x 1 Introduction This chapter explains ho w to use this manual, lists what you need to get started and optional equip ment you can order , and briefly describes the serial hardware and the NI-Serial soft ware. How to Use This Manual Ye s No Chapter 2 Chapter 3 Write Application Prog[...]

Chapter 1 Introduction PCI Serial for Windows Me/9x 1-2 ni.com What Y ou Need to Get Started Before you install your serial hardware and the NI-Serial software, make sure you have all of the following items: ❑ W indo ws Me/9 x installed on your computer ❑ One of the following serial boards, which is included in your k it: – PCI-232 (two-, fou[...]

Chapter 1 Introduction © National Instruments Corporation 1-3 PCI Serial for Windows Me/9x Additionally , the PCI serial boards are av ai lable in a two-port version (PCI-232/2 and PCI-485/2), a four-port version (PCI-232/4 and PCI-485/4), an eight-port version (PCI-232/8 and PCI-485/8), and a sixteen-port version (PCI-232/16). The two-port versio[...]

Chapter 1 Introduction PCI Serial for Windows Me/9x 1-4 ni.com NI-Serial Software Over view The NI-Serial software for Windows Me/9 x includes a native Windows device driver that provides full interru pt-driven, buffered I/O for multiple COM ports. You can obtain a maximum baud rate of 460.8 KBaud on the PCI-485 and 115.2 KBaud on the PCI-232. You [...]

Chapter 1 Introduction © National Instruments Corporation 1-5 PCI Serial for Windows Me/9x Using Y our Serial Hardware with LabVIEW and LabWindows/CVI After you install y our serial hardware and the NI-Serial software, you can use standard serial I/O functions in LabVIEW and LabWindo ws/CVI with your serial interface. If you already have LabVIEW o[...]

© National Instruments Corporation 2-1 PCI Serial for Windows Me/9x 2 Installation and V erification This chapter describes how to install the NI-Serial software, serial hardware, and cables, and how to v erify the installation. Install the Software Before you install your serial hardware, complete th e following steps to install the NI-Serial so [...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-2 ni.com 3. Click on the Install button. 4. When prompted, insert the NI-Serial Software for Windows 2000/NT/Me/9x CD, and click on the Next button. 5. When prompted, click on the Finish button to install the program files from floppy disks or CD-R OM. 6. The setup wizard begins[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-3 PCI Serial for Windows Me/9x If no N ew Hardwar e F ound dialog box appears, refer to the Forcing Windows to Detect Your Hardware section in Appendix C, Troubleshooting and Commo n Questions . Install the Hardware Note If you are installing a PCI-485, you might need to[...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-4 ni.com Figure 2-3. PCI Serial Board Install ation 7. Scre w the PCI serial board mounting brack et to the back panel mounting ra il of the co mputer . 8. Replace the co ver . 9. T u rn on your compu ter and start Windo ws Me/9 x . 10. W indo ws Me/9 x should automatically dete[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-5 PCI Serial for Windows Me/9x V erify the Installation Before you verify the installation, keep in mind that the serial ports built into your computer are typ ically named from COM1 to COM4. Windows Me/9 x typically issues port names to th e ports on NI serial hardware [...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-6 ni.com Figure 2-4 shows the De vice Manager tab for serial hardware that is installed properly . Figure 2-4. Device Manager T ab for PCI Serial Board Ports 5. V erify the hardw are resources, as follo ws: a. In the Device Manager tab, un der Multi-function ad apters, double-cl[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-7 PCI Serial for Windows Me/9x serial hardware, POR T 1 refers to th e top port, POR T2 refers to the next port do wn, and so on. 7. Run the diagnostic utility , as follo ws: select Start » Programs » National Instruments Serial » diagnostics . The diagnostic utility [...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-8 ni.com DB-9 Connector Figure 2-5 and Tabl e 2-1 give the pin locations and descriptions of the DB-9 connector, which is on the tw o-port PCI seri al board, the 10-position modular jack to DB-9 cable, the cable adapter for the eight-port board, and the DB-9 connectors to the si[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-9 PCI Serial for Windows Me/9x Modular Jack Connector Figure 2-6 and Tabl e 2-2 give the pin locations and descriptions of the 10-position modular jack, which is on the four-port PCI serial board . Figure 2-6. 10-Position Mo dular Jack Pin Locations Table 2-2. 10-Positio[...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-10 ni.com DB-25 Connector Figure 2-7 and Tabl e 2-3 give the pin locations and descriptions of the DB-25 connector, which is on the optional 10-posit ion modular jack to DB-25 cable. Figure 2-7. DB-25 Connector Pin Locations Table 2-3. DB-25 Pin Descriptions DB-25 Pin 232 Signal[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-11 PCI Serial for Windows Me/9x Figure 2-8 shows ho w to connect the cables when you install a four-port PCI serial board. Figure 2-8. Connecting the Cables to Y our Four -Port PCI Ser ial Board Serial Board Additional Serial Cable Additional Serial Cable 10-Position Mod[...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-12 ni.com 68-Pin Connector Figure 2-9 and Tabl e 2-4 give the pin locations and descriptions of the 68-pin connector, which is on the ei ght-port PCI serial b oard. Figure 2-9. 68-Pin Connector Pin Locations PIN 35 PIN 68 PIN 34 PIN 1[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-13 PCI Serial for Windows Me/9x Table 2-4. 68-Pin Connector Pin Descriptions 68-Pin Connector Port 485 Signal 485 D-Sub 9 Connector 232 Signal 232 D-Sub 9 Connector 12345678 66 57 49 40 32 23 15 6 RXD – 5 DCD 1 68 59 51 42 34 25 17 8 CTS+ 2 RXD 2 65 56 48 39 31 22 14 5[...]

Chapter 2 Installation and Verification PCI Serial for Windows Me/9x 2-14 ni.com 100-Pin Connector Figure 2-10 and Table 2-5 give the pin locati ons and descriptions of the 100-pin connector, whi ch is on the sixteen-port PCI serial board. Figure 2-10. 100-Pin Connector Pin L ocations PIN 50 PIN 100 PIN 1 PIN 51[...]

Chapter 2 Insta llation and Verification © National Instruments Corporation 2-15 PCI Serial for Windows Me/9x Connecting T wo-Wire Devices The PCI-485 boards are designed to work with either two- or four-wire devices. If you are using a two-wire dev ice, refer to the device documentation for specifi c wiring instructions. In general, half-duplex n[...]

© National Instruments Corporation 3-1 PCI Serial for Windows Me/9x 3 Configuration This chapter describes how to vie w or change the communication port settings. View or Change Communication Port Settings The serial configuration uti lity is fully integrated into th e Windows Me/9 x Device Manager. You can use it to view or change the configurati[...]

Chapter 3 Configuration PCI Serial for Windows Me/9x 3-2 ni.com Note T ranscei v er modes apply to RS-485 interfaces only . For more information about transcei ver modes, refer to Chapter 4, Using Your Serial Hardware . 5. T o sa ve your changes, click on the OK button. T o exit without sa ving the changes, click on the Cancel b utton. Port Setting[...]

Chapter 3 Configuration © National Instruments Corporation 3-3 PCI Serial for Windows Me/9x Bits per Second Bits per second , or baud rate, is the speed for a serial port. Data Bits Data bits is the number of data bits in a single serial byte. Parity Parity is the specification for even, odd, or no parity bits in each transmitted byte. Stop Bits S[...]

Chapter 3 Configuration PCI Serial for Windows Me/9x 3-4 ni.com The following sections describe the adv anced port setting options. T ransceiver Mode This field shows the transceiver mo de in use, and applies only to PCI-485 boards. For more information about transceiver modes, refer to Chapter 4, Using Your Serial Hardware . Use FIFO Buffers FIFO [...]

© National Instruments Corporation 4-1 PCI Serial for Windows Me/9x 4 Using Y our Serial Hardware This chapter describes how to set the hardw are transceiv er control mode for your RS-485 interfaces and lists some general programming requ irements. General Programming Requirements The NI-Serial software is fully integrated into the standar d Windo[...]

Chapter 4 U sing Y our Serial Hardware PCI Serial for Windows Me/9x 4-2 ni.com Note Signal names with an ov erscore, such as DTR, indicate that the signal is activ e lo w . Four -Wire Mode Use the four-wire mode for most full-duplex systems. In th is mode, the transmitter and receiver are always enabled. This mode is the default. T wo-Wire Mode: DT[...]

Chapter 4 Using Y our Serial Hardware © National Instruments Corporation 4-3 PCI Serial for Windows Me/9x T wo-Wire Mode: TXRDY Auto Control In this mode, the serial hardware transparently enables the transmitter and receiver in a two-wire system. U se this mode to remove the burden of flow control from your application. By co nnecting the transmi[...]

Chapter 4 U sing Y our Serial Hardware PCI Serial for Windows Me/9x 4-4 ni.com The scratch register is located at of fset 7 from the base address of the port. For e xample, if COM2 were located at base address 0x3F8, and you want to set the PCI- 485 board to two-wire mode with DTR control, you would write a 0x02 to ad dress 0x3FF . The PCI-485 boar[...]

Chapter 4 Using Y our Serial Hardware © National Instruments Corporation 4-5 PCI Serial for Windows Me/9x For e xample, to set TXRD Y two-wire auto control mode, use the following code: ULONG TranceiverMode = 131; DeviceIoControl(hDevice, IOCTL_SERIAL_SET_TRANSCEIVER_MODE,(P VOID) &TransceiverMode,sizeof(ULONG),lpOut Buffer, nOutBufferSize,lpB[...]

© National Instruments Corporation A-1 PCI Serial for Windows Me/9x A Serial Port Information This appendix describes the RS-232, RS-422, and RS-485 standards and explains some of the issues in v olv ed with these types of serial communication. T a ble A-1 lists the features of the RS-232, RS-422, and RS-485 standards. RS-232 As specified in the A[...]

Appendix A Serial Port Information PCI Serial for Windows Me/9x A-2 ni.com distances of 50 ft and with data rates up to 20 kbytes /s. Howe ver , because of improv ements in line driv ers and cabling, you can usually increase the actual performance of the b us past the limitations on speed and distance recommended in the specification. RS-422 As spe[...]

Appendix A Serial Port Information © National Instruments Corporation A-3 PCI Serial for Windows Me/9x Serial Communication Issues This section explains some serial communication issues, incl uding duplex architectures, termination methods, bias resistors, and types of connecting equipment. Duplex Architectures Duplex refers to the means of bandwi[...]

Appendix A Serial Port Information PCI Serial for Windows Me/9x A-4 ni.com Figure A-1. T ypica l Full-Duplex System Half Duplex A typical half-duplex multidrop bus architecture also in v olves a master-slav e protocol. Howe ver , in a half-duplex system, all transm itters and recei vers are connected to the same transmission line. A half-duple x sy[...]

Appendix A Serial Port Information © National Instruments Corporation A-5 PCI Serial for Windows Me/9x T erminati on Because each dif ferential pair of wires is a transmission line, you must properly terminate the line to prev ent reflections. A common method of terminating a two-wire m ultidrop RS-485 networ k is to install termin ating resistors[...]

Appendix A Serial Port Information PCI Serial for Windows Me/9x A-6 ni.com Figure A-4 shows a transmission line using bias resistors. Figure A-4. T ransmission Line Using Bias Resistors On the PCI RS-485 2- and 4-port serial cards, there are four user-conf igurable bias res istors in front of each connector . These resistors are socketed and pre-lo[...]

Appendix A Serial Port Information © National Instruments Corporation A-7 PCI Serial for Windows Me/9x DTE vs. DCE In the RS-232 specif ication, DTE (Data T erminal Equipment) and DCE (Data Communications Equipment) 1 refer to the types of equipment on either end of a serial connection. In general, DTE and DCE refer to computer equipment and modem[...]

© National Instruments Corporation B-1 PCI Serial for Windows Me/9x B Uninstalling the Hardware and Software This appendix describes ho w to uninstall your serial hard ware and the NI-Serial software. Uninstall the Hardware Before you physically remove the serial hardw are from your system, you must remov e the hardware information. T o do so, com[...]

Appendix B Uninstalling the Hardware and Sof tware PCI Serial for Windows Me/9x B-2 ni.com Figure B-1. Selecting an Interface to Uninstal l 5. Click on the Remove button. 6. In the C onf irm De vice Remova l dialog box, click on the OK button to remove the hardw are information, or click on the Cancel b utton to cancel your request. Uninstall the S[...]

Appendix B Uninstalling the H ardware and Software © National Instruments Corporation B-3 PCI Serial for Windows Me/9x Figure B-2. Add/Remove Programs Properties Dialog Box 3. Select the NI-Serial software you want to uninstall, and click on the Add/Remove button. The uninstallation program removes all folders, utilities, and registry entries ass [...]

Appendix B Uninstalling the Hardware and Sof tware PCI Serial for Windows Me/9x B-4 ni.com Figure B-3. Successful Uninsta llation 4. Shut down W indows Me/9 x , turn off your computer , and physically remov e the serial interfaces from your system. The uninstallation program only r emov es items that the setup wizard installed. If you added anythin[...]

© National Instruments Corporation C-1 PCI Serial for Windows Me/9x C T roubleshooting and Common Questions This appendix describes ho w to troubleshoot problems and answers some common questions. Freeing an Interrupt Request Level T o free an interrupt request lev el for your serial port, you mu st disable the de vice that is using the interrupt [...]

Appendix C T roubleshooting and Common Questions PCI Serial for Windows Me/9x C-2 ni.com Selecting Conflict-Free Resources When the Device Manager indicates a conflict with another device, you can usually correct the problem by manually selecting conflict-free resources. T o do so, comp lete the following steps: 1. Select Start » Settings » Contr[...]

Appendix C T roubleshooting and Common Questions © National Instruments Corporation C-3 PCI Serial for Windows Me/9x 2. In some versions of W indo ws Me/9 x , in the Device Manager , th e Driver tab sho ws information about the installed dri v er . Make sure that the National Instruments ser ial driv er is installed for the port. If the serial dri[...]

Appendix C T roubleshooting and Common Questions PCI Serial for Windows Me/9x C-4 ni.com Address T est Failed If the address test failed, Interrupt test cannot be performed error message appears, you might hav e an address conflict with leg acy boards in your system. T o solv e this problem, change the base addresses assigned to y our legac y board[...]

Appendix C T roubleshooting and Common Questions © National Instruments Corporation C-5 PCI Serial for Windows Me/9x 5. Select the interface that W indows Me/9 x did not detect, as sho wn in Figure C-1. Figure C-1. Ports List in Device Manager 6. Click on the Remove button. 7. Click on the OK button to remo ve the serial hardware information. 8. R[...]

Appendix C T roubleshooting and Common Questions PCI Serial for Windows Me/9x C-6 ni.com Common Questions How can I determine which type of serial hardwar e I ha ve ins talled? 1. Select Start » Settings » Control Panel and double-click on the System icon. 2. Click on the Device M anager tab and click on the View devices by type button. 3. Doubl [...]

Appendix C T roubleshooting and Common Questions © National Instruments Corporation C-7 PCI Serial for Windows Me/9x How do I change the r esour ces assigned to the serial interface ? The PCI serial boards are conf igured as de vices belonging to the multi-function adapters class. The multi-function parent de vice is listed under the Multi-functio[...]

© National Instruments Corporation D-1 PCI Serial for W indows Me/9x D Specifications This appendix describes the characteristics of the serial hardware, the NI-Serial software, along with th e recommended operating conditions. T wo-Port Boards Dimensions................... .............. ............ 10.67 by 14.22 cm (4.2 by 5.6 in .) I/O connec[...]

Appendix D Specifications PCI Serial for Windows Me/9x D-2 ni.com Power requirement (f rom PCI channel) PCI-485/2 +5 VDC ............. .............. .........800 mA typical 1300 mA maximum PCI-232/2 +5 VDC ............. .............. .........400 mA typical 650 mA maxim um Four -Port Boards Dimensions ......................... .............. ....[...]

Appendix D Specifications © National Instruments Corporation D-3 PCI Serial for W indows Me/9x Power requirement (f rom PCI channel) PCI-485/4 +5 VDC..................... .............. . 1000 mA typical 1500 mA maximum PCI-232/4 +5 VDC..................... .............. . 500 mA typical 750 mA maxim um Eight-Port Boards Dimensions...............[...]

Appendix D Specifications PCI Serial for Windows Me/9x D-4 ni.com Environmental Characteristics Operating environment Component temperature ............ ......0 to 70 ° C Relative humidity ............. ...............10 to 90%, noncondensing Storage environment Temperature......................... ............ – 40 to 120 ° C Relative humidity[...]

© National Instruments Corporation E-1 PCI Serial for Windows Me/9x E T echnical Support Resources W eb Support National Instruments W eb support is your first stop for help in sol ving installation, configuration, and application pro blems and questions. O nline problem-solving and diagnost ic resources include frequently asked questions, knowled[...]

Appendix E T echnical Suppor t Resources PCI Serial for Windows Me/9x E-2 ni.com W orldwide Support National Instruments has of fices located around the world to help address your support needs. Y ou can access our branch of f ice W eb sites from the W o rldwide Of f ices section of ni.com . Branch of fice W eb sites provide up-to-date contact info[...]

© National Instruments Corporation G-1 PCI Serial for W indows Me/9x Glossar y Pref ix Meaning V alue p- pico- 10 – 12 n- nano- 10 – 9 µ- micro- 10 – 6 m- milli- 10 – 3 k- kilo- 10 3 M- mega- 10 6 G- giga- 10 9 t- tera- 10 12 ° degrees Ω ohms % percent A amperes ANSI American Nationa l Standards Institute bb i t s Bb y t e s baud bits [...]

Glossary PCI Serial for Windows Me/9x G-2 ni.com DCD data carrier detect DCE data communications equipment or data circuit-terminating equipment DLL dynamic link library DMA direct memory access DSR data set ready DTE data terminal equipment DTR data terminal ready — the ov erscore denotes that the signal is activ e lo w duplex the means of bandw[...]

Glossary © National Instruments Corporation G-3 PCI Serial for W indows Me/9x MB megab ytes of memory PC personal computer PCI Peripheral Components Interconnect RAM random-access memory RI ring indicat or R TS request to send RX recei ve RXD recei ve data — the o v erscore denotes that the signal is acti v e lo w s seconds SCSI Small Computer S[...]

© National Instruments Corporation I-1 PCI Serial for Windows Me/9x Index Numerics 100-pin connector, 2-14 pin descriptions (table), 2-15 pin locations (figure), 2-14 10-position modular j ack, 2-9 pin descriptions (table), 2-9 pin locations (figure), 2-9 68-pin connector, 2-12 pin descriptions (table), 2-13 pin locations (figure), 2-12 A add/remo[...]

Index PCI Serial for Windows Me/9x I-2 ni.com D data bits, 3-3 DB-25 connector, 2-10 pin descriptions (table), 2-10 pin locations (figure), 2-10 DB-9 100-pin connector pin descriptio ns (figure), 2-14 100-pin connector pin descriptio ns (table), 2-15 68-pin connector pin descriptions (figure), 2-12 68-pin connector pin descri ptions (table), 2-13 c[...]

Index © National Instruments Corporation I-3 PCI Serial for Windows Me/9x I installation getting started, 1-2 PCI serial board installat ion (figure), 2-4 serial hardware, 2-3 serial software, 2-1 verification, 2-1 verifying hardware installatio n, 2-5 interrupt request level, C-1 freeing, C-1 introduction, 1-1 isolated four-port boards, D-2 isola[...]

Index PCI Serial for Windows Me/9x I-4 ni.com 68-pin description (tabl e), 2-13 connector, 2-8 connector pin descripti ons (table), 2-8 connector pin location s (figure), 2-8 port settings tab, 3-2 figure, 3-2 options advanced port settings, 3-3 bits per second, 3-3 data bits, 3-3 flow control, 3-3 parity, 3-3 stop bits, 3-3 restore defaults button[...]

Index © National Instruments Corporation I-5 PCI Serial for Windows Me/9x straight-through cabling in a DTE-to-DCE interface (figure), A-7 successful uninstallation (figure), B-4 system integration, by National Instrume nts, E-1 T technical support resources, E-1 termination, A-5 multidrop network usi ng terminating resistors (figure), A-5 time-sa[...]