Measurement-computing CIO-DAS160x/1x Uživatelský manuál

CIO-DAS1601/12 CIO-DAS1602/12CIO-DAS1602/16ANALOG & DIGITAL I/O BOARDfor ISA BUSStandard and -P5 versionsRevision 6© Copyright November, 2000

4 CONNECTOR PINOUTS4.1 MAIN CONNECTOR DIAGRAMThe CIO-DAS1600 analog connector is a 37-pin “D” connector accessible from the rear of the PCthrough the

4.2 DIGITAL I/O CONNECTOR (NOT APPLICABLE TO -P5 VERSIONS)The digital I/O connector is mounted at the rear of the CIO-DAS1600 and will accept a 40-pin

5 ANALOG CONNECTIONS5.1 ANALOG INPUTSAnalog signal connection is one of the most challenging aspects of applying a data acquisition board. Ifyou are

Figure 5-1b. Single-Ended Voltage Input TheoryDifferential InputsDifferential inputs measure the voltage between two distinct input signals. Within a

Figure 5-2b. Differential Input TheoryBefore moving on to the discussion of grounding and isolation, it is important to explain the concepts ofcommon

5.1.2 System Grounds and IsolationThere are three scenarios possible when connecting your signal source to your CIO-DAS1600 board. 1. The CIO-DAS1600

isolation is to change your voltmeter to it’s ohm scale and measure the resistance between the twogrounds. It is recommended that you turn both system

NOTERelying on the earth prong of a 120VAC for signal ground connections is not advised..Different ground plugs may have large and potentially even da

5.2.1 Common Ground / Single-Ended InputsSingle-ended is the recommended configuration for common ground connections. However, if some ofyour inputs a

5.2.3 Common Mode Voltage < +/-10V / Single-Ended InputsThis is not a recommended configuration. In fact, the phrase common mode has no meaning in

LIFETIME WARRANTYEvery hardware product manufactured by Measurement Computing Corp. is warranted against defects inmaterials or workmanship for the li

Figure 5-8. Common Mode Voltage > +/-10V. Differential Input5.2.6 Isolated Grounds / Single-Ended InputsSingle-ended inputs can be used to monitor

5.2.7 Isolated Grounds / Differential InputsOptimum performance with isolated signal sources is assured with the use of the differential inputsetting.

Figure 5-11. Analog Output Range Select Jumper Block18

6 REGISTER ARCHITECTUREThere are three common approaches to generating software for the CIO-DAS1600. These are: 1. Writing custom software utilizing

Table 6-1. Register MapNoneStatus of extended featuresBASE + 407hDAS 1600 Enable/DisableNoneBASE + 406hBurst Mode Enable/DisableNoneBASE + 405hConvers

BASE ADDRESS +1A/D 4A/D 5A/D 6A/D 7A/D 8A/D 9A/D 10A/D 11MSB01234567A Read-only register.On read the most significant A/D byte is read.6.1.2 A/D DATA

6.1.4 FOUR BIT DIGITAL I/O REGISTERSBASE ADDRESS+3A read and write register.When read from...DI0, TRIGDI1DI2, CTR0, GATEDI3001101234567READThe signals

D/A 1 REGISTERSBASE ADDRESS + 6 XXXXD/A0LSBD/A1D/A2D/A301234567BASE ADDRESS + 7 D/A4D/A5D/A6D/A7D/A8D/A9D/A10D/A11MSB01234567WRI

6.1.7 DMA, INTERRUPT & TRIGGER CONTROLBASE ADDRESS + 9TS0TS1DMAXIR0IR1IR2INTE01234567A read and write register.READINTE = 1, Interrupts are enable

BL3 to BL0 = BURST LENGTH. This nibble determines the number of conversions per trigger when inthe burst mode. There are one to sixteen samples (sing

328.1 VOLTAGE DIVIDERS ...328 ANALOG ELECTRONICS ...

6.1.9 PROGRAMMABLE GAIN CONTROL REGISTER / BURST RATEBASE ADDRESS + BhG0G1XXXXXX01234567BURST RATE is fixed at: CIO-DAS1600/12 = 4 µs (250 kHz) betwe

6.1.10 PACER CLOCK DATA & CONTROL REGISTERS8254 COUNTER 0 DATABASE ADDRESS + ChD1D2D3D4D5D6D7D8012345678254 COUNTER 1 DATABASE ADDRESS + DhD1D2D3D

PORT C DATABASE ADDRESS +402hCL0CL1CL2CL3CH0CH1CH2CH3C0C1C2C3C4C5C6C701234567Port C can be used as one 8-bit port of either input or output, or it can

M1 = 0 is mode 0 for group B. Input / OutputM1 = 1 is mode 1 for group B. Strobed Input / OutputThe Ports A, B, C High and C Low can be in

6.1.14 DAS1600 MODE ENABLE REGISTERBASE ADDRESS +406hMMMMMMMM01234567WRITE ONLY. DAS1600 mode enable. Writing 40 hex to this register enables the DA

7 CALIBRATION AND TESTEvery board was fully tested and calibrated at the factory. For normal environments, a calibrationinterval of six months to one

8 ANALOG ELECTRONICS8.1 VOLTAGE DIVIDERSIf you wish to measure a signal which varies over a range greater than the input range of an analog ordigital

Digital inputs also make use of voltage dividers, for example, if you wish to measure a digital signal thatis at 0 volts when off and 24 volts when on

9 SPECIFICATIONS9.1 CIO-DAS1601/12 & CIO-DAS1602/12Power consumption+5 1.4 A typical, 2.1 A maxAnalog input sectionA/D converter type ADS7800 suc

Analog Output:Resolution 12 bitsNumber of channels 2D/A type MX7548Voltage Ranges ±10V, ±5V, 0 to 5V, 0 to 10V or user defined range between0 and 10V.

369.2 CIO-DAS1602/16 ...349.1 CIO-DAS1601/12 & CIO-DAS1602/12 ...

Counter sectionCounter type 82C54Configuration 3 down-counters, 16 bits eachCounter 0 - Independent, user configurableSource: Programmable - Internal

Number of channels 8 differential or 16 single-ended, switch-selectableInterrupts 2 to 7Interrupt enable ProgrammableInterrupt sources End-of-conversi

Digital Input / OutputDigital Type (Digital I/O connector) 82C55 (not applicable on -P5 versions)Configuration 2 banks of 8, 2 banks of 4, programmabl

EC Declaration of ConformityWe, Measurement Computing Corp., declare under sole responsibility that the product:DescriptionPart NumberISA Bus, analog

Measurement Computing Corporation16 Commerce Boulevard,Middleboro, MA 02346Tel: (508) 946-5100Fax: (508) 946-9500E-mail: [email protected]

1 INTRODUCTIONThe installation and operation of all CIO-DAS1600 series boards are very similar. Throughout thismanual we use CIO-DAS1600 as a generic

3.2 DMA LEVEL SELECTIf you are installing the board in an old XT bus computer, DMA level 3 isprobably used by the hard disk controller. Set the DMA l

3.5 D/A CONVERTER REFERENCE JUMPER BLOCKThe jumper block located near the center of the CIO-DAS1600 allows you to use the on board precisionvoltage re

The input amplifier gain is controlled by a software programmed register located at BASE + B hex (11decimal). The codes have different meaning for ea

3.8 BURST MODE GENERATORThe burst mode generator is a clock signal that paces the A/D at the maximum multi-channel sample rate,then periodically, perf