Measurement-computing CIO-DAS6402/12 Manuel d'utilisateur

CIO-DAS6402/12&CIO-DAS6402/16ANALOGAND$IGITAL)/"OARDSRevision 2 © Copyright, October, 2000

4 ANALOG CONNECTIONS4.1 ANALOG INPUTSThe following section provides explanations and helpful hints regarding analog input connections. This section is

Differential InputsDifferential inputs measure the voltage between two distinct input signals. Within a certain range (referred to as the common moder

Figure 4-3. Common Mode Range4.1.3 SYSTEM GROUNDS AND ISOLATIONThere are three scenarios possible when connecting your signal source to your CIO-DAS64

WARNINGIf either the AC or DC voltage is greater than 10 volts, do not connect the CIO-DAS6402 to this signal source.You are beyond the boards usable

NOTEDo not rely on the earth prong of a 120VAC receptacle for signal ground connections. Different ground plugsmay have large and potentially even dan

4.2.1 COMMON GROUND / SINGLE-ENDED INPUTSSingle-ended is the recommended configuration for common ground connections. However, if some of your inputs

Systems with varying ground potentials should always be monitored in the differential mode. Care is required to assure that the sumof the input signal

Figure 4-9. Isolated Grounds / Single-Ended Input4.2.7 ISOLATED GROUNDS / DIFFERENTIAL INPUTSOptimum performance with isolated signal sources is assu

5 REGISTER ARCHITECTURE5.1 INTRODUCTIONThe CIO-DAS6402 is controlled and monitored by reading and writing to 16 I/O addresses. The first address is re

Table 5-2. DAS6402 I/O Map - ENHANCED Mode(BOLD indicates register definition for DAS6402/16)8254 Counter Control RegisterNone. No read back on 8254B

HM CIO-DAS6402_1#.docYour new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Thank you for ch

A/D DATA WORD REGISTER - 16 BIT BASE + 0 Example, 300h, 768 DecimalREAD/WRITEAD0LSBAD1AD2AD3AD4AD5AD6AD7AD8AD9AD10AD11AD12AD13AD14AD15MSBCOMPATIBLEAD0

5.4 8-BIT DIGITAL I/O REGISTERSBASE ADDRESS +3 Example, 303h, 771 DecimalREADDI0XPACERDI1XTRIGDI2GATE0DI3DI4DI5DI6DI701324567The signals present at

6402/12Each 12 bit D/A output line has two 8-bit registers. The first contains the four least-significant bits of the data and four 'don't-

SEDIFF - Analog input channel configuration, 0 = differential, 1 = single ended.MA3:0 - Analog input channel mux setting (for next conversion).WRITECL

COMPATIBLE MODE:Write to Base + 8 only clears the interrupt flip-flop (sets CLRINT only (= 1)).5.7 INTERRUPT AND PACER CONTROL REGISTERBASE ADDRESS +9

5.8 TRIGGER CONTROL/ DAC RANGE SELECT REGISTERTriggering and Gating are digital means to control pacing. Triggering means that an active edge on the

COMPATIBLE MODE:TRIG0: Trigger/Gate Enable bit When = 1, Enables DIN0 input to gate the pacer (external trigger/gate). When = 0, Enables pacer gat

Table 5-7. Comparison of Features: Compatible vs. Enhanced ModeYesNoPre-triggerSingle ADCREP INSWEnd of BurstExternalSingle ADC DMAInterruptsYesYes

5.10 PACER CLOCK DATA AND CONTROL REGISTERS8254 COUNTER 0 DATA - POST TRIGGER CONVERSION COUNTERBASE + 12 Example, 30Ch, 780 decimalREAD/WRITED1D2D3D

6 CALIBRATION AND TESTEvery board was fully tested and calibrated before being placed in finished goods inventory at the factory. For normalenvironme

TABLE OF CONTENTS308.2 CIO-DAS6402/12...278.1 CIO-DAS6402/16...

For a given attenuation, pick a resistor and call itR2, the use this formula to calculate R1.R1 = (A-1) x R2Digital inputs often require the use of vo

8 SPECIFICATIONS8.1 CIO-DAS6402/16Typical for 25 DegC unless otherwise specified.Power consumptionIcc: Operating 1.17 A typical, 1.67 A maxAnalog in

Analog OutputResolution 16 bitsNumber of channels 2 Voltage OutputsD/A type AD660BNVoltage Ranges ±2.5, ±5, ±10, 0 to 2.5, 0 to 5, 0 to 10, switc

Counter sectionCounter type 82C54Configuration 3 down-counters, 16 bits eachCounter 0Compatible mode - Independent Source: Programmable external (CTR

8.2 CIO-DAS6402/12Typical for 25°C unless otherwise specified.Power consumptionIcc: Operating 1.05 A typical, 1.6 A maxAnalog input sectionA/D conve

Analog Output:Resolution 12 bitsNumber of channels 2 Voltage OutputD/A type AD7237Voltage Ranges ±10V, ±5V, 0 to 5V, 0 to 10V. Software-programmableO

Counter sectionCounter type 82C54Configuration 3 down-counters, 16 bits eachCounter 0Compatible mode - Independent Source: Programmable external (CTR

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EC Declaration of ConformityWe, Measurement Computing Corp., Inc., declare under sole responsibility that the product:DescriptionPart Number12-Bit Ana

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1 INTRODUCTIONThe CIO-DAS6402/16 and CIO-DAS6402/12 provide 32 differential or 64 single-ended inputs. They have sample rates as high as330 kHz (100 k

3 HARDWARE INSTALLATION3.1 BASE ADDRESSUnless there is already a board in your system using address 300h (768 Decimal), leave the switches as they are

Table 3-1. D/A Analog Range Switch Settings Range SW 1 SW 2 SW 3 SW 4 SW 5DN

Figure 3-7. CIO-DAS6402/16 Base Address, D/A Range & Mode Switches Location4 Update ModeSelect JumperD/A Range andMode SelectionSwitchesBase Addre

3.4 CONNECTOR PIN-OUTThe CIO-DAS6402 analog connector (Figure 3-8) is a 100 pin high-density connector accessible from the rear of the PC throughthe e