Measurement-computing CIO-DAS16/M1 Manual de usuario descargar pdf (Pagina 3)

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Table of Contents

1. SOFTWARE INSTALLATION .........................................................................................................................................................1

2. HARDWARE INSTALLATION........................................................................................................................................................1

2.1 BASE ADDRESS ............................................................................................................................................................................1

2.2 USER-COUNTER CLOCK/CHAINING JUMPERS......................................................................................................................2

2.3 PACER CLOCK SOURCE SELECT JUMPER..............................................................................................................................2

2.4 INSTALLING THE CIO-DAS16/M1 IN THE COMPUTER.........................................................................................................3

2.5 PROGRAMMABLE RANGE AND GAIN SETTING ...................................................................................................................3

3. SIGNAL CONNECTIONS..................................................................................................................................................................4

3.1 INTRODUCTION ...........................................................................................................................................................................4

3.2 ANALOG CONNECTOR DIAGRAM............................................................................................................................................4

3.2.1 Analog Inputs............................................................................................................................................................................5

3.2.2 Connecting Analog Inputs.........................................................................................................................................................5

1.1.3 Shielding ...................................................................................................................................................................................5

1.1.4 Grounded Signal Source ...........................................................................................................................................................5

1.1.5 Floating Signal Source..............................................................................................................................................................6

1.1.6 Avoiding Ground Loops............................................................................................................................................................6

1.3 DIGITAL OUTPUTS & INPUTS....................................................................................................................................................7

1.3.1 Digital Output Connector .........................................................................................................................................................7

1.3.2 Counter Clock Jumper ..............................................................................................................................................................7

1.3.3 Cabling the Digital Connector..................................................................................................................................................7

4. REGISTER ARCHITECTURE........................................................................................................................................................10

4.1 DATA TRANSFERS.....................................................................................................................................................................10

4.2 FIFO DATA BUFFER...................................................................................................................................................................10

4.3 CHANNEL/GAIN QUEUE ...........................................................................................................................................................10

4.4 CHANNEL/GAIN MEMORY CONTENTS REGISTER.............................................................................................................11

4.5 DT-CONNECT ..............................................................................................................................................................................12

4.6 CONTROL & DATA REGISTERS...............................................................................................................................................12

4.6.1 A/D Data & Channel Registers...............................................................................................................................................14

4.6.2 Control & Status Bits ..............................................................................................................................................................14

4.6.3 Four-Bit Digital I/O Registers ................................................................................................................................................15

4.6.4 Clear Interrupt Status Register ...............................................................................................................................................16

4.6.5 Interrupt Control, Pacer Source Register...............................................................................................................................16

4.6.6 Channel Gain Queue Address Register...................................................................................................................................17

4.6.7 Channel Gain Queue Data Register........................................................................................................................................18

4.6.8 Total Counter Data & Control Registers................................................................................................................................19

4.6.9 Digital I/O and Counter Control & Data Registers...............................................................................................................20

4.6.10 82C55 Digital I/O Registers..................................................................................................................................................21

4.6.11 COUNTER CHIP (82C54)....................................................................................................................................................23

5. SPECIFICATIONS............................................................................................................................................................................24

6. ELECTRONICS AND INTERFACING..........................................................................................................................................27

6.1 COMMON MODE.........................................................................................................................................................................27

6.2 COMMON MISUNDERSTANDINGS.........................................................................................................................................28

6.3 GROUND

LOOPS .........................................................................................................................................................................28

6.4 PULL UP & PULL DOWN RESISTORS .....................................................................................................................................28

6.5 TTL TO SOLID STATE RELAYS................................................................................................................................................29

6.6 VOLTAGE DIVIDERS .................................................................................................................................................................30

6.7 LOW PASS FILTERS ...................................................................................................................................................................32

1 2 3 4 5 6 7 8 ... 37 38

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