Measurement-computing CIO-DAS16/330 Instrukcja Użytkownika

CIO-DAS16/330USERS MANUALRevision 5April, 2001

3.2 ANALOG INPUTSAnalog inputs to the CIO-DAS16/330 may be connected in three different configurations. These are single-ended,floating differential,

3.4 FLOATING DIFFERENTIALA floating differential input is two wires from the signal source and a 10K ground reference resistor installed at the board

4 REGISTER ARCHITECTURE 4.1 DATA TRANSFERSThe CIO-DAS16/330 bus interface is a PC/XT/AT bus interface. In compatibility mode (mode switch up) i

Table 4-1. Bit Weights801287406462032510164883442221110HEX VALUEDECIMAL VALUEBIT POSITIONTo write control or data to a register, the individual bits a

4.4 A/D DATA & CHANNEL REGISTERSNote: When in enhanced mode, the bus interface is 16 bits wide and BASE +0 and BASE +1 should be read as a 16 bi

Bits 3-0 contain the starting channel number and bits 7-4 contain the ending channel number. If you wanted to scanchannels 1, 2, 3 in that order, you

CH8, CH4, CH2 & CH1 are a binary number between 0 and 15 indicating the channel number that the MUX is currentlyset to and is valid only when EOC

Figure 4-1 may help understand these registers, and is further explained in the section covering the 8254.Figure 4-1. Pacer Clock and Control4.10 ANA

Table 4- 3. Input Range Coding 70 to 1.25V111060 to 2.5V011050 to 5V101040 to 10V00103+/-0.62511002+/-1.25V01001+/-2.5V10000+/-5V00008+/-10V0001Decima

BIT 6 - Pre-Trigger Enable. Trigger Status.WRITE: 0 = Disable pre-trigger mode. 1 = enable pre-trigger. The trigger index counter (CTR 2 of 2nd 82

© Copyright 2001 Measurement Computing Corp.HM CIO-DAS16_330.lwpYour new Measurement Computing product comes with a fantastic extra — Management commi

4.12 ENHANCED FEATURES PACER CLOCK DATA & CONTROL REGISTERS8254 COUNTER 0 DATA - Total Count MS CounterChained from counter 1BASE ADDRESS +16D1D2

4.14 DIGITAL INPUT & OUTPUTThere are four bits of output only and four bits of input only on the CIO-DAS16/330 analog connector. From the origina

4.16 DMA CONTROL LOGICThe Direct Memory Access (DMA) controller is on the personal computerCPU board, not on the CIO-DAS16/330. The CIO-DAS16/330 ha

5 SPECIFICATIONS Power consumption+5V: 900 mA typical, mA maxAnalog input sectionA/D converter type AD7800 Resolution 12 bitsNumber of channels 8

Counter sectionCounter type 82C54Configuration Two 82C54 devices, 3 down counters each device, 16 bits each82C54A:Counter 0 - Independent, available t

6 ANALOG ELECTRONICS This short introduction to the analog electronics most often needed by data acquisition board users covers a few keyconcepts.

The formula for attenuation is:For a given attenuation, pick a handy resistorand call it R2, the use this formula tocalculate R1.R1 = (A-1) * R2For ex

Figure 6-2. Differential InputFigure 6-2 shows the differential mode (multiplexer not shown).A single-ended input has no common mode range because th

This specification is illustrated graphically in Figure 6-4 and is referred to as Cumulative Signal Range (CSR).Figure 6-4. Cumulative Signal RangeMos

6.3 LOW PASS FILTERSA low pass filter is placed on the signal wires between a signal and an A/D board. It stops frequencies greater than thecut-off

266.6 CURRENT LOOP 4-20 mA...266.5 ENGINEERING UNITS...256

6.5 ENGINEERING UNITSWhen a program uses an A/D board to acquire data, the data file is filled with numbers like those above.To translate the A/D num

To hook up the CIO-AD analog inputs to a 4-20 mA transducer or signal source, place the shunt resistor across the plusand minus terminals or signal wi

6.7.3 SENSOR NOISEWhen the signal wires have been tested and characterized for signal quality, connect the sensor and provide a knownlevel to the sen

EC Declaration of ConformityWe, Measurement Computing Corp., declare under sole responsibility that the product:DescriptionPart NumberCIO-DAS16/330to

Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: [email protected]

286.7.4 SMOOTHING DATA...286.7.3 SENSOR NOISE...276.7.

1 INTRODUCTIONThe CIO-DAS16/330 is two architectures on one A/D board; one having standard DAS-16 registers and one havingextended registers.To mainta

2 INSTALLATION2.1 SOFTWAREBefore you open your computer and install the board, install and run InstaCal™, the installation, calibration and testutilit

2.2.3 DMA LEVEL SELECTFirst, determine the kind of computer you installing the boardin. If it is an XT, there are only two DMA levels available andlev

2.2.5 8/16 CHANNEL SELECTThe CIO-DAS16/330 can be configured for eight differential or 16single-ended analog inputs. Using differential inputs allow

3 SIGNAL CONNECTION This section presents 'how to connect' common signals while avoiding discussion of electrical theory and specialsym