Advantech PCI-1720 Manual do Utilizador

PCI-17204-channel Isolated D/AOutput CardUser's manual

6 PCI-1720 User's Manual

Chapter 2 Installation 72 InstallationCHAPTER

8 PCI-1720 User's Manual2.1 Initial InspectionBefore installing the PCI-1720, check the card for visible damage.We have carefully inspected the

Chapter 2 Installation 92.3 Installation InstructionsThe PCI-1720 can be installed in any PCI slot in the computer.However, refer to the comput

10 PCI-1720 User's Manual

3Jumpers andI/O ConnectorsCHAPTER

12 PCI-1720 User's ManualThe PCI-1720 is a “plug-and-play” card, i.e. the system BIOS assignsthe system resources such as the base address and th

Chapter 3 Jumpers and I/O Connector 13Figure 3-2: Jumper settings for PCI-1720’s current sink rangeNote!: In order to maintain accurate outputs fo

14 PCI-1720 User's ManualWhen jumper JP5 is disabled, power-off or “hot” reset results inoutputs returning to their default state.Figure 3-3: Jum

Chapter 3 Jumpers and I/O Connector 15Signal Name Reference Direction DescriptionVOUT<0...3> AGND OutputAnalog Voltage Output Channels 0 thr

CopyrightThis documentation and the software included with this product arecopyrighted 1999 by Advantech Co., Ltd. All rights are reserved.Advantech C

16 PCI-1720 User's Manual

4Register Structureand FormatCHAPTER

18 PCI-1720 User's Manual4.1 OverviewThe PCI-1720 is delivered with an easy-to-use 32-bit DLL driver foruser programming under the Windows 95/98/

Chapter 4 Register Structure and Format 19BaseAddress+ decimalDataFunction description R/W76543210+2(n) D7D6D5D4D3D2D1D0D/A output channel n W+(2(

20 PCI-1720 User's ManualD11 ~ D0 Digital to Analog dataD0 is the LSB (Least Significant Bit) and D11 is the MSB (MostSignificant Bit) of the D/A

Chapter 4 Register Structure and Format 214.2.3 Synchronized Output Prompt RegisterDuring normal operation, the PCI-1720 will accept digital value

22 PCI-1720 User's Manual4.3 Unipolar and Bipolar Binary CodeTablesTable 4-6: Unipolar binary code tableNotes: 1. Vref is the reference source vo

5Signal ConnectionsCHAPTER

24 PCI-1720 User's Manual5.1 OverviewMaking correct signal corrections is important for accurate datatransmissions. Since most data acquisition

Chapter 5 Signal Connections 25Figure 5-2: Grounded-load connection for D/A voltage outputFigure 5-3: Differential-load connection for D/A voltage

ContentsCHAPTER 1 General Information ... 11.1 Introduction ... 21.2 Featu

26 PCI-1720 User's Manual3. Floating load with an internal +12 V power supply.These are shown in the following illustrations.Figure 5-4: Grounded

Chapter 5 Signal Connections 275.4 Current Sink Load and PowerSupplyYou have to select the current sink load and power supply carefully.The current

28 PCI-1720 User's Manual

Appendix A Calibration 29ACalibrationAPPENDIX

30 PCI-1720 User's ManualA.1 OverviewThe PCI-1720 card uses eight variable resistors (VRs), two for eachchannel, which allow you to calibrate eac

Appendix A Calibration 31You should use a precision voltmeter/ammeter to obtain accuratereadings when calibrating the PCI-1720. Standard procedure

32 PCI-1720 User's ManualA.4 Current Sink Calibration1. Select the 0 ~ +5 V (unipolar) output range for the channel to becalibrated.2. Set all di

4.2.3 Synchronized Output Prompt Register ... 214.2.4 Synchronized Output Control Bit ... 214.3 Unip

1General InformationCHAPTER

2 PCI-1720 User's Manual1.1 IntroductionThe PCI-1720 is an isolated digital-to-analog output card for the PCIbus. It provides four 12-bit analog

Chapter 1 Gerneral Information 31.3 Applications* Process control* Programmable voltage source* Programmable current sink* Servo control1.4 Specif

4 PCI-1720 User's ManualPower consumption* +5 V @ 350 mA (typical), 500mA (Max.)* +12V @ 200 mA (typical), 350mA (Max.)Physical* Connector: 37-pi

Chapter 1 Gerneral Information 5PCI BUSPCIControllerIsolation2500 VDCControlLogicandDecoderData Buffer Data Buffer4 Ch12 BitD/AD/A RangeControl1.5