CIO-DISO48
Isolated High Voltage Digital Inputs
User's Guide
Document Revision 7, March, 2010
© Copyright 2010, Measurement Computing Corporation
HM CIO-DISO48.doc
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2
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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 ................................................................................................................................................ 6
Chapter 2
Installing the CIO-DISO48 ..................................................................................................................... 7
What comes with your CIO-DISO48 shipment? ................................................................................................ 7
Hardware .......................................................................................................................................................................... 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 ............................................................................................................................... 12
Isolated 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 .............................................................................................................................. 13
P1 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 guide
This 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 are
reading.
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), or
search 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 or
outputs 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.
The CIO-DISO48 has 48 individual, optically-isolated (500V) inputs. The state of the inputs may be read from
six 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 the
Quick 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 the
Quick 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
Switch/jumper
Default setting
Base address switches
300h (768 decimal)
AC Input Filter switches
all ON
Wait State jumper
OFF position
Unpacking the board
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the CIO-DISO48 from its packaging, ground yourself using a wrist strap or by
simply 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 by
phone, 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 Data
Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-
Quick-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 your
computer and install the board. The CIO-DISO48 is shipped with the factory-default settings listed below.
Factory-configured default settings
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 the
correct 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 base
address of 300 hex.
Figure 1. Base address switches
8
CIO-DISO48 User's Guide Installing the CIO-DISO48
WAIT
STATE
ON OFF
1 2 3 4 5 6 7 8
O
N
IP7- - - - - - - - - - - - - - - - - IP0
THROUGH
IP47- - - - - - - - - - - - - - - - IP40
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 300
hex (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 to
see if that solves the problem. The Wait State jumper is shown in Figure 2 configured for OFF.
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 a
single byte. The inputs are not polarity sensitive and may be driven by either AC (50 to 1000 Hz) or DC in the
range 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 FL1
to 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
Figure 3. The filters must be used for AC inputs, and should be used for DC inputs.
Figure 3. AC input filter switches FL1 to FL6
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
I/O connector type
P1 and P2: 50-pin header connectors
Compatible cable
C50FF-x, where x = length in feet
Compatible accessory products with the C50FF-x cable
CIO-MINI50 (two required to monitor more than 24 channels)
Installing the CIO-DISO48
After you configure the board's switches and jumper, you can install the CIO-DISO48 into your computer. To
install 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 the
MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installing
the 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 previous
section. Refer to the Quick Start Guide that came with your board www.mccdaq.com/PDFmanuals/DAQ-
Software-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
Pin out – I/O connectors
Figure 4. Front and rear connector pin out
10
CIO-DISO48 User's Guide Installing the CIO-DISO48
The red stripe
identifies pin # 1
50-pin Female
IDC connector
50-pin Female
IDC Connector
1
2
49
50
2
50
1
49
Caution! High voltages are present on the CIO-DISO48 when you have connected high voltage inputs or
outputs 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
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 a
screw terminal board with high voltage inputs or outputs exposes you and others to those high
voltage signals. Construct a safe cable to carry your signals directly from your equipment to the
CIO-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 at
www.mccdaq.com/signals/signals.pdf).
11
Functional Details
Isolated inputs
The CIO-DISO48 has 48 isolated input channels. A schematic of a single channel is shown in Figure 6.
Chapter 3
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 AC
inputs, the bridge output is a "pulsating" DC voltage. Closing the filter switch smoothes this pulsating voltage to
steady 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 and
the 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 Signal
Connections. This document is available on our web site at available on our web site at
www.mccdaq.com/signals/signals.pdf).
12
Number
48
Range
5-28 V DC or AC (50 to 1000 Hz)
Not TTL compatible.
Isolation
500 V
Resistance
1.6 kΩ minimum
Response
Without filter: 20 mS
With filter switched in: 5 mS
+5 V supply
0.6 A typical, 1.0 A maximum
Operating temperature range
0 to 50 °C
Storage temperature range
-20 to 70 °C
Humidity
0 to 90% non-condensing
Weight
8 oz.
Dimensions
3 7/8" (99 mm) height, excluding gold fingers
6 ½" (164 mm) length
Connector type
P1 and P2: 50-pin header connectors
Compatible cable
C50FF-x, where x = length in feet
Compatible accessory
products with the C50FF-x
CIO-MINI50
Specifications
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
Chapter 4
Power consumption
Table 2. Power consumption specifications
Environmental
Table 3. Environmental specifications
Mechanical
Table 4. Mechanical specifications
Main connector and pin out
Table 5. Main connector specifications
13
CIO-DISO48 User's Guide Specifications
Pin
Signal name
Pin
Signal name
50
GND
49
+5V
48
ISO 23
47
ISO 23
46
ISO 22
45
ISO 22
44
ISO 21
43
ISO 21
42
ISO 20
41
ISO 20
40
ISO 19
39
ISO 19
38
ISO 18
37
ISO 18
36
ISO 17
35
ISO 17
34
ISO 16
33
ISO 16
32
ISO 15
31
ISO 15
30
ISO 14
29
ISO 14
28
ISO 13
27
ISO 13
26
ISO 12
25
ISO 12
24
ISO 11
23
ISO 11
22
ISO 10
21
ISO 10
20
ISO 9
19
ISO 9
18
ISO 8
17
ISO 8
16
ISO 7
15
ISO 7
14
ISO 6
13
ISO 6
12
ISO 5
11
ISO 5
10
ISO 4
9
ISO 4
8
ISO 3
7
ISO 3
6
ISO 2
5
ISO 2
4
ISO 1
3
ISO 1
2
ISO 0
1
ISO 0
Pin
Signal name
Pin
Signal name
50
GND
49
+5V
48
ISO 47
47
ISO 47
46
ISO 46
45
ISO 46
44
ISO 45
43
ISO 45
42
ISO 44
41
ISO 44
40
ISO 43
39
ISO 43
38
ISO 42
37
ISO 42
36
ISO 41
35
ISO 41
34
ISO 40
33
ISO 40
32
ISO 39
31
ISO 39
30
ISO 38
29
ISO 38
28
ISO 37
27
ISO 37
26
ISO 36
25
ISO 36
24
ISO 35
23
ISO 35
22
ISO 34
21
ISO 34
20
ISO 33
19
ISO 33
18
ISO 32
17
ISO 32
16
ISO 31
15
ISO 31
14
ISO 30
13
ISO 30
12
ISO 29
11
ISO 29
10
ISO 28
9
ISO 28
8
ISO 27
7
ISO 27
6
ISO 26
5
ISO 26
4
ISO 25
3
ISO 25
2
ISO 24
1
ISO 24
P1 pin out
Table 6. Connector P1 pin out
P2 pin out
Table 7. Connector P2 pin out
14
Declaration of Conformity
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Suite 1008
Norton, MA 02766
USA
Category: Electrical 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 other
documents:
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
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