CIO-DISO48
Isolated High Voltage Digital Inputs
User's Guide

Document Revision 7A, March, 2010
© Copyright 2010, Measurement Computing Corporation

Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo areeither trademarks or registered trademarks of Measurement Computing Corporation. Refer to the Copyrights &Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company names mentioned herein are trademarks or trade names of their respectivecompanies.
© 2010 Measurement Computing Corporation. All rights reserved. No part of this publication may bereproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, byphotocopying, recording, or otherwise without the prior written permission of Measurement Computing
Corporation.
NoticeMeasurement Computing Corporation does not authorize any Measurement Computing Corporation product for
use in life support systems and/or devices without prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result ininjury. Measurement Computing Corporation products are not designed with the components required, and are
not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis ofpeople.

HM CIO-DISO48.doc

2

3

Table of Contents
Preface

About this User's Guide .......................................................................................................................5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1

Introducing the CIO-DISO48.................................................................................................................6
Overview: CIO-DISO48 features ....................................................................................................................... 6
Software features ................................................................................................................................................ 6Chapter 2

Installing the CIO-DISO48.....................................................................................................................7
What comes with your CIO-DISO48 shipment? ................................................................................................ 7Hardware .......................................................................................................................................................................... 7
Additional documentation ................................................................................................................................................. 7
Optional components ........................................................................................................................................................ 7

Unpacking the board ........................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Configuring the CIO-DISO48 ............................................................................................................................ 8
Base address...................................................................................................................................................................... 8
Wait state jumper .............................................................................................................................................................. 9
AC input filters ................................................................................................................................................................. 9

Installing the CIO-DISO48 ............................................................................................................................... 10
Connecting the board for I/O operations .......................................................................................................... 10
Connectors, cables – I/O connectors ................................................................................................................................10
Field wiring and signal termination accessories...............................................................................................................11
Chapter 3

Functional Details ...............................................................................................................................12Isolated inputs ................................................................................................................................................... 12
Extending the input range ................................................................................................................................. 12
Chapter 4

Specifications ......................................................................................................................................13
Isolated inputs ................................................................................................................................................... 13
Power consumption .......................................................................................................................................... 13
Environmental .................................................................................................................................................. 13
Mechanical ....................................................................................................................................................... 13
Main connector and pin out .............................................................................................................................. 13P1 pin out .........................................................................................................................................................................14
P2 pin out .........................................................................................................................................................................14

Declaration of Conformity ..................................................................................................................15

4

Preface

About this User's Guide
What you will learn from this user's guideThis user's guide explains how to install, configure, and use the CIO-DISO48. This user's guide also refers you
to related documents available on our web site, and to technical support resources.

Conventions in this user's guide
For more information on …
Text presented in a box signifies additional information and helpful hints related to the subject matter you arereading.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
< : >Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned
to registers, bit settings, etc.

bold text

Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For
example:1. Insert the disk or CD and click the OK button.

italic text

Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For
example:The InstaCal installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.

Where to find more information
For additional information relevant to the operation of your hardware, refer to the Documents subdirectory
where you installed the MCC DAQ software (C:\Program Files\Measurement Computing\DAQ by default), orsearch for your device on our website at www.mccdaq.com.
If you need to program at the register level in your application, refer to the Register Map for the CIO-DISO48.
This document is available at on our web site at www.mccdaq.com/registermaps/RegMapCIO-DISO48.pdf.

5Chapter 1

Introducing the CIO-DISO48
Overview: CIO-DISO48 features
The CIO-DISO48 is a 48 channel isolated input interface board. The CIO-DISO48 is designed for applications
where the presence or absence of a high voltage in the range of 5 to 28V (AC/DC) needs to be detected and read
into a computer.
Caution! High voltages are present on the CIO-DISO48 when you have connected high voltage inputs oroutputs to the CIO-DISO48 connector. Use extreme caution! Never handle the CIO-DISO48 whensignals are connected to the board through the connector. Never remove the protective plates fromthe CIO-DISO48 unless all input voltages are removed first.
The CIO-DISO48 has 48 individual, optically-isolated (500V) inputs. The state of the inputs may be read fromsix read-only, 8-bit registers. The inputs are not polarity sensitive. Either AC voltages (50 to 1000 Hz) or DC
voltages in the range 5V to 28V RMS can be sensed. Each input has a switchable low-pass filter having a time
constant of 5 ms (200 Hz).

Software features
For information on the features of InstaCal and the other software included with your CIO-DISO48, refer to theQuick Start Guide that shipped with your device.

6

Chapter 2

Installing the CIO-DISO48
What comes with your CIO-DISO48 shipment?
The following items are shipped with the CIO-DISO48.

HardwareCIO-DISO48 board. Note: The board is shipped with a protective plate covering some components. The
board is shown here without the protective plate.

Additional documentation
For information on the features of InstaCal and the other software included with your CIO-DISO48, refer to theQuick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at
www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.
Check www.mccdaq.com/download.htm for the latest software version.

Optional components
C50FF-x cableSignal termination and conditioning accessories
MCC provides signal termination products for use with the CIO-DISO48. Refer to Field wiring, signal
termination and conditioning on page 11 for a complete list of compatible accessory products.

7

CIO-DISO48 User's Guide

Installing the CIO-DISO48

Unpacking the board
As with any electronic device, you should take care while handling to avoid damage from staticelectricity. Before removing the CIO-DISO48 from its packaging, ground yourself using a wrist strap or bysimply touching the computer chassis or other grounded object to eliminate any stored static charge.
If any components are missing or damaged, notify Measurement Computing Corporation immediately byphone, fax, or e-mail:

Phone: 508-946-5100 and follow the instructions for reaching Tech Support.
Fax: 508-946-9500 to the attention of Tech Support
Email: techsupport@mccdaq.com

Installing the software
Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing DataAcquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-SoftwareQuick-Start.pdf.

Configuring the CIO-DISO48
The CIO-DISO48 has one base address switch, six banks of AC input filter switches, and one wait state jumper
which you must set before installing the board in your computer. The InstaCal calibration and test program
included with the CIO-DISO48 will show you how to set the switches. Run InstaCal before you open yourcomputer and install the board. The CIO-DISO48 is shipped with the factory-default settings listed below.
Factory-configured default settings
Switch/jumper

Default setting

Base address switches
AC Input Filter switches
Wait State jumper

300h (768 decimal)
all ONOFF position

Base address
The base address switch sets the starting I/O location where the CPU can access the registers of the CIODISO48. The factory default is 300h (768 decimal).
Before you install the CIO-DISO48 in your computer, set the base address by using the dip switch labeled
ADDRESS located on the board. The easiest way to set the base address switch is to let InstaCal show you thecorrect settings. However, if are already familiar with setting ISA base addresses, you may use the base address
switch description below to guide your base address selection.
Unless there is already another board in your system using address 300 hex (768 decimal), leave the switches as
they are set at the factory. The example shown in Figure 1 shows the settings for the factory-default baseaddress of 300 hex.

Figure 1. Base address switches

8

CIO-DISO48 User's Guide

Installing the CIO-DISO48

In the default configuration shown in Figure 1, addresses 9 and 8 are DOWN, and all others are UP.
Address 9 = 200 hex (512 decimal) and address 8 = 100 hex (256 decimal); when added together they equal 300hex (768 decimal).
Disregard the numbers printed on the switch
When setting the base address, refer to the numbers printed in white on the printed circuit board.

Wait state jumper
The CIO-DISO48 board has a wait state jumper which you can set to enable an on-board wait state generator.
The factory default is wait state disabled (OFF). You will probably never need the wait state because PC
expansion slot busses are limited to 8 or 10 MHz. If you get intermittent operation, try enabling the wait state tosee if that solves the problem. The Wait State jumper is shown in Figure 2 configured for OFF.

ONOFFWAIT
STATE

Figure 2. Wait State jumper

AC input filters
There are 48 individual, optically isolated (500V) inputs in six groups of eight each that can be read back as asingle byte. The inputs are not polarity sensitive and may be driven by either AC (50 to 1000 Hz) or DC in therange 5V to 28V RMS. Each input has a switchable low-pass filter with a time constant of 5 ms (200 Hz).
Each group of eight inputs has an associated bank of eight filter-enable switches. The switches are labeled FL1to FL6. The label identifies the group of inputs controlled by the switch:






FL1 controls inputs ISO 0 to ISO 7
FL2 controls inputs ISO 8 to ISO 15
FL3 controls inputs ISO 16 to ISO 23
FL4 controls inputs ISO 24 to ISO 31
FL5 controls inputs ISO 32 to ISO 39
FL6 controls inputs ISO 40 to ISO 47
A typical switch used to control the filters is shown in
IP7- - - - - - - - - - - - - - - - - IP0Figure 3. The filters must be used for AC inputs, andTHROUGH
should be used for DC inputs.
IP47- - - - - - - - - - - - - - - - IP40
ON1234567Filter Switch Banks FL1

8FL6Switch
UP filter(ON) toEnable a FL1
Filter to FL6Figure Set
3. ACinput
switches(Shown all Enabled)

Unless you have reason to turn off a filter, you should enable it (switch up). With the filter on, an AC voltage
within the specified frequency range present on the input produces a constant high signal to the opto-isolator.
With the filter ON, an AC voltage on the input produces a DC voltage.
Note: To change the configuration of a switch on FL1 to FL3, you need to remove the board's protective shield.

9CIO-DISO48 User's Guide

Installing the CIO-DISO48

Installing the CIO-DISO48
After you configure the board's switches and jumper, you can install the CIO-DISO48 into your computer. Toinstall your board, follow the steps below.
Install the MCC DAQ software before you install your board
The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install theMCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installingthe software.
1.

Turn your computer off, open it up, and insert your board into an available ISA slot.

2.

Close your computer and turn it on.

3.

To test your installation and configure your board, run the InstaCal utility you installed in the previoussection. Refer to the Quick Start Guide that came with your board www.mccdaq.com/PDFmanuals/DAQSoftware-Quick-Start.pdf for information on how to initially set up and load InstaCal.

Connecting the board for I/O operations
Connectors, cables – I/O connectors
The table below lists the board connectors, applicable cables and compatible accessory boards.
Board connectors, cables, accessory equipment
I/O connector typeCompatible cableCompatible accessory products with the C50FF-x cableP1 and P2: 50-pin header connectors
C50FF-x, where x = length in feet
CIO-MINI50 (two required to monitor more than 24 channels)

Pin out – I/O connectors

Figure 4. Front and rear connector pin out10

CIO-DISO48 User's Guide

Installing the CIO-DISO48

Caution! High voltages are present on the CIO-DISO48 when you have connected high voltage inputs oroutputs to the CIO-DISO48 connector.
Use extreme caution! Never handle the CIO-DISO48 when signals are connected to the board
through the connector. Never remove the protective plates from the CIO-DISO48 unless all input
voltages are removed first.
Cabling
215049

The red stripe
identifies pin # 150-pin Female
IDC Connector

21504950-pin Female
IDC connector

Figure 5. C50FF-x cable

Field wiring and signal termination accessories
You can connect the CIO-DISO48 to the following screw terminal board using the C50FF-x cable.
CIO-MINI50 – 50-pin screw terminal board.

Details on this product is available on our web site at www.mccdaq.com/products/screw_terminal_bnc.aspx.
Caution! Do not use exposed-screw terminal boards if your field voltage is more than 24 volts. Using ascrew terminal board with high voltage inputs or outputs exposes you and others to those highvoltage signals. Construct a safe cable to carry your signals directly from your equipment to theCIO-DISO48 connector.
The CIO-DISO48 is a digital input board with signal conditioning installed. Most accessory boards are intended
to provide signal conditioning or easy-to-access signal termination. In general, the CIO-DISO48 does not
require additional signal conditioning unless you need to sense voltages higher than 28 V.
We recommend that you DO NOT use screw terminal boards to connect high voltage signals to the CIODISO48. The CIO-DISO48 is intended to read high voltages. The use of screw terminal boards would expose
yourself and others to potentially dangerous high voltages.
For more information on digital signal connections
For more information on digital signal connections and digital I/O techniques, refer to the Guide to Signal
Connections. This document is available on our web site at available on our web site atwww.mccdaq.com/signals/signals.pdf).

11

Chapter 3

Functional Details
Isolated inputs
The CIO-DISO48 has 48 isolated input channels. A schematic of a single channel is shown in Figure 6.

Figure 6. Isolated input schematic – simplified

AC or DC input signals are applied to a bridge rectifier so that the inputs are not polarity sensitive. On ACinputs, the bridge output is a "pulsating" DC voltage. Closing the filter switch smoothes this pulsating voltage tosteady DC.

Extending the input range
To extend the input range beyond the 5-28 V specified, add an external resistor. Figure 7 shows the resistor andthe equations used to calculate resistor values for a given Vin.

Figure 7. Input range-extending resistor

For more information on digital signal connections
For more information on digital signal connections and digital I/O techniques, refer to the Guide to SignalConnections. This document is available on our web site at available on our web site atwww.mccdaq.com/signals/signals.pdf).

12Chapter 4Specifications
All specifications are subject to change without notice.
Typical for 25°C unless otherwise specified.
Specifications in italic text are guaranteed by design.

Isolated inputs
Table 1. Isolated input specifications
NumberRange
Isolation
Resistance
Response

48
5-28 V DC or AC (50 to 1000 Hz)
Not TTL compatible.
500 V
1.6 kΩ minimum
Without filter:
20 mS
With filter switched in:
5 mS

Power consumption
Table 2. Power consumption specifications+5 V supply

0.6 A typical, 1.0 A maximumEnvironmental
Table 3. Environmental specifications
Operating temperature range
Storage temperature range
Humidity

0 to 50 °C-20 to 70 °C
0 to 90% non-condensing

Mechanical
Table 4. Mechanical specifications
WeightDimensions

8 oz.
3 7/8" (99 mm) height, excluding gold fingers
6 ½" (164 mm) length

Main connector and pin out
Table 5. Main connector specifications
Connector typeCompatible cableCompatible accessory
products with the C50FF-x

P1 and P2: 50-pin header connectors
C50FF-x, where x = length in feet
CIO-MINI50

13

CIO-DISO48 User's GuideSpecifications

P1 pin out
Table 6. Connector P1 pin out
Pin5048464442403836343230282624222018161412108642Signal nameGND
ISO 23
ISO 22
ISO 21
ISO 20
ISO 19ISO 18
ISO 17
ISO 16
ISO 15
ISO 14
ISO 13
ISO 12
ISO 11
ISO 10ISO 9
ISO 8
ISO 7
ISO 6
ISO 5
ISO 4
ISO 3
ISO 2
ISO 1
ISO 0Pin494745434139373533312927252321191715131197531Signal name+5V
ISO 23
ISO 22
ISO 21
ISO 20
ISO 19ISO 18
ISO 17
ISO 16
ISO 15
ISO 14
ISO 13
ISO 12
ISO 11
ISO 10
ISO 9ISO 8ISO 7ISO 6ISO 5ISO 4ISO 3ISO 2ISO 1
ISO 0

P2 pin out
Table 7. Connector P2 pin out
Pin5048464442403836343230282624222018161412108642Signal name
GND
ISO 47
ISO 46
ISO 45
ISO 44
ISO 43
ISO 42
ISO 41
ISO 40
ISO 39ISO 38
ISO 37
ISO 36
ISO 35
ISO 34
ISO 33
ISO 32
ISO 31
ISO 30
ISO 29ISO 28
ISO 27
ISO 26
ISO 25
ISO 24Pin494745
43413937353331292725232119171513119753114Signal name+5V
ISO 47
ISO 46
ISO 45
ISO 44
ISO 43
ISO 42
ISO 41
ISO 40
ISO 39ISO 38
ISO 37
ISO 36
ISO 35
ISO 34
ISO 33
ISO 32
ISO 31
ISO 30
ISO 29ISO 28
ISO 27
ISO 26
ISO 25
ISO 24

Declaration of Conformity
Manufacturer:
Address:

Category:

Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, MA 02766
USAElectrical equipment for measurement, control and laboratory use.

Measurement Computing Corporation declares under sole responsibility that the product

CIO-DISO48
to which this declaration relates is in conformity with the relevant provisions of the following standards or otherdocuments:
EU EMC Directive 89/336/EEC: Electromagnetic Compatibility, EN55022 (1987), EN50082-1
Emissions: Group 1, Class B
EN55022 (1987): Radiated and Conducted emissions.

Immunity: EN50082-1
IEC 801-2 (1987): Electrostatic Discharge immunity, Criteria A.
IEC 801-3 (1984): Radiated Electromagnetic Field immunity Criteria A.
IEC 801-4 (1988): Electric Fast Transient Burst immunity Criteria A.

Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in
November, 1995. Test records are outlined in Chomerics Test Report #EMI0168A.95.
We hereby declare that the equipment specified conforms to the above Directives and Standards.

Carl Haapaoja, Director of Quality Assurance

Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, Massachusetts 02766(508) 946-5100
Fax: (508) 946-9500
E-mail: info@mccdaq.com
www.mccdaq.com