Measurement CIO-DI48 User Manual

CIO-DI48,
CIO-DI96,

CIO-DI192

User’s Manual

Revision 3

October, 2000

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Table of Contents

1.0 INTRODUCTION

2.0 SOFTWARE INSTALLATION

3.0 HARDWARE SETUP

3.1 BASE ADDRESS SELECTION

4.0 HARDWARE INSTALLATION

4.1 INSTALLING THE BOARD

4.2 CABLING TO THE CONNECTOR(S)

4.3 DIGITAL SIGNAL CHARACTERISTICS

4.4 CONNECTOR PIN-OUT DIAGRAMS

5.0 DATA REGISTERS

5.1 INTRODUCTION

5.2 CIO-DI48 REGISTERS

5.3 CIO-DI96 REGISTERS

5.4 CIO-DI192 REGISTERS

6.0 SPECIFICATIONS

7.0 INTERFACING TECHNIQUES

7.1 UNCONNECTED INPUTS FLOAT

7.2 TTL TO SOLID STATE RELAYS

7.3 VOLTAGE DIVIDERS

7.4 LOW-PASS FILTERS DE-BOUNCE INPUTS

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1.0 INTRODUCTION

The CIO-DI48, 96 and 192 are designed to have the best quality and lowest cost of
any digital input board.

Throughout this manual the model number CIO-DI## is used when the information
applies to the CIO-DI48, CIO-DI96 and CIO-DI192 inclusive. Exclusive information
for a particular version will be identified.

CIO-DI48 is a dedicated 48-line digital input board built up of six, eight-input logic
chips. There are no control registers. The input pins present a single LSTTL load.
Similarly, the 96-line and 192-line versions use 12 or 24 ei ght-input logic chips
respectively.

The CIO-DI## also conforms to the connector pin specification of all the CIO-DIO
family of digital boards, so m ay be used in place of one another without changing
cabling or connectors.

All these products are supported by Universal Library programming library.

A group of application notes at the end of this manual describes electrical interfacing
subjects that may be useful for digital I/O applications.

2.0 SOFTWARE INSTALLATION

In order to easily test your installation, it is recommended that you install InstaCal, the
installation, calibration and test utility that was supplied with your board. Refer to the
Extended Software Installation Manual for information on the initial setup, loading,
and installation of InstaCal and optional Universal Library software.

InstaCal will guide you through hardware settings and allow you to easily test for
conflicts. If you decide not to use Instacal to assist board configuration, details are
provided in the following section.

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3.0 HARDWARE SETUP

3.1 BASE ADDRESS SELECTION

The CIO-DI## employs the PC bus for power, communications and data transfer. As
such it draws power from the PC, monitors the address lines and control signals and
responds to it's I/O address, and it receives and places data on the 8 data lines.

The BASE address is the most important user-selectable feature of the CIO-DI##.
The base address, an d offsets from it, are the locations that PC software reads input
data from.

Base address dip switches are used for setting the base address. Each switch position
corresponds to one of the PC bus address lines. Placing a switch down puts it in the
active position.
A complete address is constructed by adding the HEX o r decimal number which
corresponds to all the address bits the CIO-DI## has been instructed to respond to.
For example shown in Figure 3-1, switches 9 and 8 are DOWN, al l others UP.
Address 9 = 200h (512D) and address 8 = 100h
(256D), When added together they equal 300h (768D).

NOTE

Disregard the numbers printed on the switch; refer only to the
numbers printed in white on the board!

In Figure 3-1, note that the number of switches varies with the board version.

Certain addresses are used by the PC, others are free and may be used by the
CIO-DI## and other expansion boards. We recommend trying the factory default
address 300h (768D) first.

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I

I

I

Figure 3-1. Base Address Switches

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Table 2-1. PC I/O Addresses

FUNCTIONHEX

RANGE

FUNCTIONHEX

RANGE

EGA2C0-2CF8237 DMA #1000-00F
EGA2D0-2DF8259 PIC #1020-021
GPIB (AT)2E0-2E78253 TIMER040-043
SERIAL PORT2E8-2EF8255 PPI (XT)060-063
SERIAL PORT2F8-2FF8742 CONTROLLER (AT)060-064

070-071

CMOS RAM & NMI MASK (AT)

PROTOTYPE CARD300-30F
PROTOTYPE CARD310-31FDMA PAGE REGISTERS080-08F
HARD DISK (XT)320-32F8259 PIC #2 (AT)0A0-0A1
PARALLEL PRINTER378-37FNMI MASK (XT)0A0-0AF
SDLC380-38F8237 #2 (AT)0C0-0DF
SDLC3A0-3AF80287 NUMERIC CO-P (AT)0F0-0FF
MDA3B0-3BBHARD DISK (AT)1F0-1FF
PARALLEL PRINTER3BC-3BFGAME CONTROL200-20F
EGA3C0-3CFEXPANSION UNIT (XT)210-21F
CGA3D0-3DFBUS MOUSE238-23B
SERIAL PORT3E8-3EFALT BUS MOUSE23C-23F
FLOPPY DISK3F0-3F7PARALLEL PRINTER270-27F
SERIAL PORT3F8-3FFEGA2B0-2BF

The BASE switch can be set for address in the range of 000-3F8 so it should not be
hard to find a free address area f or you CIO-DI##. Once again, if you are not using
IBM prototyping cards or s ome other board which occupies these addresses, then
300-31F HEX are free to use.

Addresses not specifically listed, such as 390-39F, are not reserved and may be
available. Check your computer for other boards which may use I/O addresses.

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