Measurement-computing PCM-DAS16x/16 Manuel d'utilisateur

PCM-DAS16D/16PCM-DAS16S/16ComputerBoards, Inc.Revision 3March 1999

3 WINDOWS 3.X OR DOS INSTALLATION 3.1 INSTALL THE InstaCal SOFTWARE PACKAGEInstaCal is the installation, calibration and test software supplied w

3.2 INSTALL THE PCMCIA CARDInsert the card into a free PCM card slot and wait for the insertion tone (a doublebeep). Shown here is a PCM card case lo

3.4 TESTING THE INSTALLATIONAfter you have run the install program and set your base address with InstaCal, it istime to test the installation. The

bus you may be familiar with. If you plug a PCMCIA board into a PCMCIA slot andhave not yet run CSS, you will have no access to the functions of that

4 OPERATION 4.1 ANALOG RESOLUTION & RANGEThe 16 bit A/D converter provides a resolution of 1/65,536 parts of full scale. Thesmallest readin

Here is where the design of the analog front end is critical to maintaining totalthroughput. Every A/D chip has a fixed input range, typically +/-5V.

4.4 A/D PACER CLOCKMany analog acquisitions can be handled by a simple on-board rate divider created bycombining an XTAL with a programmable counter.

5 I/O CONNECTOR The PCM-DAS16S/16 has 16 single ended analog inputs. The PCM-DAS16D/16 has8 differential inputs. Both boards have an analog gro

Analog signals should be connected with the high side to the numbered analog inputand the low side to the low input or the analog ground. Please see

6 ANALOG CONNECTIONS 6.1 ANALOG INPUTSAnalog signal connection is one of the most challenging aspects of applying a dataacquisition board. If y

LIFETIME PRODUCT WARRANTYEvery Computerboards, Inc. product is warranted against defects in materials or workmanshipfor the life of the product, to th

6.1.2 Single-Ended InputsA single-ended input measures the voltage between the input signal and ground. Inthis case, in single-ended mode the PCM-DAS

6.1.3 Differential InputsDifferential inputs measure the voltage between two distinct input signals. Within acertain range (referred to as the common

Before moving on to the discussion of grounding and isolation, it is important toexplain the concepts of common mode, and common mode range (CM Range)

mode voltage. Depending on the magnitude of this voltage, it may or may not bepossible to connect the PCM-DAS16x/16 directly to your signal source. W

If you cannot obtain a reasonably stable DC voltage measurement between thegrounds, or the voltage drifts around considerably, the two grounds are mos

products to add electrical isolation, or give our technical support group a call to dis-cuss other options).NOTERelying on the earth prong of a 120VAC

6.2 WIRING CONFIGURATIONSCombining all the grounding and input type possibilities provides us with the follow-ing potential connection configurations

The following sections depicts recommended input wiring schemes for each of the 8possible input configuration/grounding combinations.6.2.1 Common Grou

6.2.3 Common Mode Voltage < +/-10V/Single-Ended InputsThis is not a recommended configuration. In fact, the phrase common mode has nomeaning in a s

6.2.5 Common Mode Voltage > +/-10V The PCM-DAS16x/16 will not directly monitor signals with common mode voltagesgreater than +/-10V. You will eit

3110 CABLE & SCREW TERMINAL BOARD ...29 9.1 CONTROL REGISTERS...299 I/O ADDRESS MAP & REGISTER FUNC

6.2.7 Isolated Grounds / Differential InputsOptimum performance with isolated signal sources is assured with the use of the dif-ferential input settin

7 PROGRAMMING & APPLICATIONS Your PCM-DAS16x/16 is now installed and ready for use. Although the PCM-DAS16x/16 is part of the larger DAS16 f

8 CALIBRATION The PCM-DAS16x/16 is calibrated via software. The case may not be opened andthere are no parts inside which you can service. Ther

9 I/O ADDRESS MAP & REGISTER FUNCTIONS A base address register controls the beginning, or 'Base Address' of the I/O addressesoccupi

Interrupt Source ControlThe interrupt source is controlled by three bits.INT2 INT1 INT0 Source0 0 1 Pacer - Counter 20 1 0 External - Pin 70 1 1 FIFO

10 CABLE & SCREW TERMINAL BOARD The PCM-C37/33 is a 10 inch 33 conductor cable assembly for use with 33 pinPCMCIA cards. The PCM-C37/33 has

11 SPECIFICATIONS 11.1 POWER CONSUMPTION+5V quiescent 65mA typical, 90mA max+5V during CIS read 75mA typical, 110mA max11.2 ANALOGA/D convert

CMRR @ 60HzPCM-DAS16D/16 -76dBInput leakage current ±20nAInput impedance 10Meg Ohms minAbsolute maximum input voltage ±15VNoise Distribution (Rate

Crystal oscillatorFrequency 10MHzFrequency accuracy 100ppm11.4 DIGITAL INPUT/OUTPUTDigital type FPGAConfiguration Two ports, four bits each. Program

EC Declaration of ConformityWe, ComputerBoards, Inc., declare under sole responsibility that the product:DescriptionPart NumberPCMCIA, High-Resolution

34 11.5 ENVIRONMENTAL...34 11.4 DIGITAL INPUT/OUTPUT...33 11.3 COUNTER...

ComputerBoards, Inc.16 Commerce BoulevardMiddleboro, MA 02346T:(508) 946-5100F: (508)946-9500www.computerboards.com

1 INTRODUCTION The PCM-DAS16x/16 is a data acquisition and control board for IBM PC compatiblecomputers with PCMCIA type 2 slots. The heart of t

2 WINDOWS 95, 98 INSTALLATION 2.1 INSTALL THE InstaCal SOFTWARE PACKAGE2.1.1 INTRODUCTION InstaCal is the installation, calibration and test s

2.2 INSTALL THE PCMCIA CARDYour PCM card is completely plug and play. There are no switches or jumpers to setprior to installation in your computer.

2.3 RUN InstaCalRun the InstaCal program in order to configure the board for run-time use. By config-uring the board, you add information to the con

2.4 TESTING THE INSTALLATIONAfter you have run the install program, it is time to test the installation. The followingsection describes the InstaCal