Measurement CIO-DUAL-AC5 User Manual

CIO-DUAL-AC5

High Drive Digital I/O

User's Guide

Document Revision 4, March, 2010

© Copyright 2010, Measurement Computing Corporation

HM CIO-DUAL-AC5.doc

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the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission:

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Simple installations minimize the time between setting up your system and actually making measurements. We offer quick and
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this program.

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3

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Notice

Measurement 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 which, 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 in injury.
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 of people.

4

Table of Contents

Preface

About this User's Guide ....................................................................................................................... 6

What you will learn from this user's guide ......................................................................................................... 6

Conventions in this user's guide ......................................................................................................................... 6

Where to find more information ......................................................................................................................... 6

Chapter 1

Introducing the CIO-DUAL-AC5 ........................................................................................................... 7

Overview: CIO-DUAL-AC5 features ................................................................................................................ 7

Software features ................................................................................................................................................ 7

Chapter 2

Installing the CIO-DUAL-AC5 ............................................................................................................... 8

What comes with your CIO-DUAL-AC5 shipment? ......................................................................................... 8

Hardware .......................................................................................................................................................................... 8

Additional documentation .................................................................................................................................. 8

Optional components .......................................................................................................................................... 8

Unpacking the CIO-DUAL-AC5 ....................................................................................................................... 9

Installing the software ........................................................................................................................................ 9

Configuring the CIO-DUAL-AC5 ..................................................................................................................... 9

Base address...................................................................................................................................................................... 9

Installing the CIO-DUAL-AC5 ........................................................................................................................ 10

Connecting the board for I/O operations .......................................................................................................... 11

Connectors, cables – main I/O connector ........................................................................................................................11

Field wiring, signal termination, and conditioning ..........................................................................................................12

Chapter 3

Functional Details ............................................................................................................................... 13

82C55 emulation .............................................................................................................................................. 13

Pull-up and pull-down resistors .......................................................................................................................................13

TTL to solid state relays ..................................................................................................................................................14

Chapter 4

Specifications ...................................................................................................................................... 15

Digital I/O ......................................................................................................................................................... 15

Power consumption .......................................................................................................................................... 15

Environmental .................................................................................................................................................. 15

Main connectors and pin out ............................................................................................................................ 15

Connector P1 pin out .......................................................................................................................................................16

Connector P2 pin out .......................................................................................................................................................16

Declaration of Conformity .................................................................................................................. 17

5

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-DUAL-AC5 board so that you get the
most out of its high current digital I/O features. 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

The following conventions are used in this manual to convey special information:

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-DUAL-
AC5. This document is available on our website at http://www.mccdaq.com/registermaps/RegMapCIO-DUAL-

AC5.pdf.

6

Chapter 1

Introducing the CIO-DUAL-AC5

Overview: CIO-DUAL-AC5 features

The CIO-DUAL-AC5 is a 48-bit digital I/O board. The 48-bits of digital I/O are organized into two 24-bit
groups based on an 82C55 mode 0 emulation (no strobed I/O or bi-directional I/O bits). Each 24-bit group is
divided into three eight-bit ports — Port A, Port B, and Port C. PORTC can be split into two four-bit nibbles —
Port C-HI and Port C-LO. Each port can be individually programmed as input or output.

The CIO-DUAL-AC5 has two 50-pin header connectors which are compatible with the pin out of OPTO-22
and GORDOS solid state relay racks. If you are using OPTO or GORDOS form factor solid state relay racks,
you can connect the CIO-DUAL-AC5 directly to the relay racks through 50-pin cables, such as the C50FE-x.

All inputs and outputs are TTL compatible. The digital output drivers are 74S244 chips that can sink 64 mA
and source 15 mA. The input buffers are 74LS373 chips and have standard high input impedance of the 74LS
series devices.

On power up and reset, all I/O bits are set to input mode. If you are using the board to control items that must
be OFF on reset, install pull-down resistors. Each board is equipped with open locations where you can install
SIP resistor networks for either pull-up or pull-down.

Software features

For information on the features of InstaCal and the other software included with your CIO-DUAL-AC5, refer
to the Quick Start Guide that shipped with your device.

7

C50FE-x

C50FF-x

Installing the CIO-DUAL-AC5

What comes with your CIO-DUAL-AC5 shipment?

The following items are shipped with the CIO-DUAL-AC5.

Hardware

 CIO-DUAL-AC5

Chapter 2

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of

the software you received with your CIO-DUAL-AC5 and information regarding installation of that software.
Please read this booklet completely before installing any software or hardware.

Optional components

You can also order the following MCC product to use with your CIO-DUAL-AC5.

 Cables

 Signal termination and conditioning accessories

MCC provides signal conditioning and termination products for use with the CIO-DUAL-AC5. Refer to

Field wiring, signal termination, and conditioning on page 12 for a complete list of compatible accessory

products.

8

CIO-DUAL-AC5 User's Guide Installing the CIO-DUAL-AC5

Unpacking the CIO-DUAL-AC5

As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the CIO-DUAL-AC5 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: [phone] and follow the instructions for reaching Tech Support.
 Fax: [phone] to the attention of Tech Support
 Email: [e-mail]

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-DUAL-AC5

The CIO-DUAL-AC5 has one base address switch which you must set before installing the board in your
computer. The InstaCal calibration and test program included with the CIO-DUAL-AC5 will show you how to
set the switches. Run InstaCal before you open your computer and install the board.

Base address

Before you install the CIO-DUAL-AC5 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. CIO-DUAL-AC5 base address switches

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.

9

CIO-DUAL-AC5 User's Guide Installing the CIO-DUAL-AC5

Hex Range

Function

Hex Range

Function

000-00F

8237 DMA #1

2C0-2CF

EGA

020-021

8259 PIC#1

2D0-2DF

EGA

040-043

8253 Timer

2E0-2E7

GPIB (AT)

060-063

8255 PPI (XT)

2E8-2EF

Serial Port

060-064

8742 Controller (AT)

2F8-2FF

Serial Port

070-071

CMOS RAM & NMI mask (AT)

300-30F

Prototype card

080-08F

DMA page registers

310-31F

Prototype card

0A0-0A1

8259 PIC #2 (AT)

320-32F

Hard disk (XT)

0A0-0AF

NMI mask (XT)

378-37F

Parallel printer

0C0-0DF

8237 #2 (AT)

380-38F

SDLC

0F0-0FF

80287 numeric CO-P (AT)

3A0-3AF

SDLC

1F0-1FF

Hard disk (AT)

3B0-3BB

MDA

200-20F

Game control

3BC-3BB

Parallel printer

210-21F

Expansion unit (XT)

3C0-3CF

EGA

238-23B

Bus mouse

3D0-3DF

CGA

23C-23F

ALT bus mouse

3E8-3EF

Serial port

270-27F

Parallel printer

3F0-3F7

Floppy disk

2B0-2BF

EGA

3F8-3FF

Serial port

PC I/O addresses

The CIO-DUAL-AC5 Base switch can be set for an address in the range of 000-3E0, so it should not be hard to
find a free address area for your CIO-DUAL-AC5. If you are not using IBM prototyping cards, or some other
board which occupies these addresses, then 300-31F HEX are free to use. Addresses not specifically listed,
such as 390-39F, are free.

Installing the CIO-DUAL-AC5

After you configure the board's switches and jumpers, you can install the CIO-DUAL-AC5 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.

10

CIO-DUAL-AC5 User's Guide Installing the CIO-DUAL-AC5

Connector type

50-pin header connectors (2)

Compatible cables

C50FE-x
C50FF-x

Compatible accessory products with the
C50FE-x

SSR-PB24

Compatible accessory products with the
C50FF-x

CIO-TERM100
CIO-SPADE50
CIO-MINI50
SCB-50
SCB-100

Connecting the board for I/O operations

Connectors, cables – main I/O connector

The table below lists the board connector, applicable cables, and compatible accessory products.

Board connector, cables, and accessory equipment

Pin out – I/O connectors

The CIO-DUAL-AC5 I/O uses two 50-pin header-type connectors. These connectors are board-mounted and
are not accessible on the rear of the PC expansion backplate. The signals available are direct connections to an
82C55 digital I/O integrated circuit.

Figure 2 shows the pin outs for the connectors. The pin assignments for each are identical for each group of 24
pins (three, eight-I/O ports).

 The front connector (P1) is for first Port A, first Port B, and first Port C I/O lines (at BASE + 0, 1, and 2).
 The rear connector (P2) is for second Port A, second Port B and second Port C (at BASE + 4, 5, and 6).

Figure 2. I/O connector pin out — P1 and P2 connectors

11

CIO-DUAL-AC5 User's Guide Installing the CIO-DUAL-AC5

Field wiring, signal termination, and conditioning

The CIO-DUAL-AC5 is typically used for driving the SSR-PB24 solid state relay rack. Use the C50FE-x cable
for connections.

 SSR-PB24 – 24 channel solid-state relay mounting and interface rack.
Details on this product are available on our web site at www.mccdaq.com/products/signal_conditioning.aspx.

You can use the following cabling, screw termination, and signal conditioning products with the C50FF-x
cable.

 CIO-TERM100 – 100-pin screw terminal board (Two 50-pin IDC connectors).
 CIO-SPADE50 — 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors.
 CIO-MINI50 – 50-pin screw terminal board.
 SCB-50 – 50 conductor, shielded signal connection/screw terminal box provides two independent 50-pin

connections.

 SCB-100 – 100 conductor, shielded signal connection/screw terminal box provides two independent 50-pin

connections.

Details on these products are available on our web site at

www.mccdaq.com/products/screw_terminal_bnc.aspx.

Information on signal connections

General information regarding signal connection and configuration is available in the Guide to Signal
Connections (available at www.mccdaq.com/signals/signals.pdf).

12

2.2 KOhm SIP

Dot

(LO or HI)

I/O Lines

Chapter 3

Functional Details

82C55 emulation

The CIO-DUAL-AC5 board emulates the 82C55 chip. The 82C55 emulation initializes all ports as inputs on
power-up and reset. A TTL input is a high impedance input. If you connect another TTL input device to the
output, it could be turned on or off every time the board is reset.

To establish a consistent TTL level at power-up, use resistors tied to either +5V (pull-up) or ground (pull­down). There are open locations for pull-up and pull-down resistor packs on the board.

Whenever an 82C55 emulation is powered on or reset, all pins are set to high-impedance input. Based on
standard TTL functionality, these inputs will typically float high, and may have enough drive current to turn on
external devices.

Unconnected inputs typically float high, but not reliably. The direction they float is dependent on the
characteristics of the circuit and is unpredictable. Consequently, if you have output devices such as solid state
relays, they may be switched on whenever the computer is powered on or reset. To prevent unwanted switching
at power-on or reset, force all digital I/O pins to a known state by pulling all pins either high or low through a

2.2 K ohm resistor tied to either 5V or GND.

Pull-up and pull-down resistors

Whenever the CIO-DUAL-AC5 is powered on or reset, the control register is set to a known state. That state is
mode 0, all ports are inputs. When used as an output device to control other TTL input devices, the CIO­DUAL-AC5 applies a voltage level of 0V for low and 2.5V to 5V for high.

The pull-up resistor pulls the input to a high state (+5V) when the board is in input mode, as it would be on
power-up or reset. A 2.2 K ohm resistor draws only 2 mA. A grounded 2.2 K ohm pull-down resistor pulls the
I/O line low when the board is in input mode.

The SIP is made up of eight 2.2 K ohm resistors. One side of each resistor is connected to a single common
point and brought out to a pin. The common line is marked with a dot or line at one end of the SIP. The
remaining resistor ends are brought out to the other eight pins (refer to Figure 3).

Figure 3. Eight-resistor SIP Schematic

The CIO-DUAL-AC5 board has open locations (RN1 through RN6) where you can install a 2.2 K ohm, eight­resistor single inline package (SIP) resistor network for each port. The locations are adjacent to each I/O
connector and are marked A, B, and C.

Connector P1 is for the first Port A, first Port B, and first Port C I/O lines (at BASE + 0, 1, and 2). Connector
P2 is for second Port A, second Port B and second Port C (at BASE + 4, 5, and 6).

13

CIO-DUAL-AC5 User's Guide Functional Details

When installed, the SIP establishes either a high or low logic level at each of the eight I/O lines on the port. At
each board location, A, B, and C, there are 10 holes in a line. The hole on one end is marked "HI" and is
connected to +5V. The other end is marked "LO" and is connected to GND. The eight holes in the middle
connect to eight lines of the port, A, B or C.

To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the resistor
with the common pin in the LO end.

Figure 4 shows a schematic of an SIP installed in both the pull-up and pull-down positions.

Figure 4. Pull-up and pull-down resistor SIP schematic

We recommend using 2.2 K ohm SIPs (MCC part number SP-K2.29C). Use a different value only if necessary.

Unconnected inputs float

Unconnected inputs typically float high, but not reliably. If you are using a CIO-DUAL-AC5 board for input
and have unconnected inputs, ignore the data from those lines. You do not have to terminate input lines, and
unconnected lines will not affect the performance of connected lines. Ensure that you mask out any
unconnected bits in software.

TTL to solid state relays

Many applications require digital outputs to switch AC and DC voltage motors on and off or to monitor AC and
high DC voltages. These AC and high DC voltages cannot be controlled or read directly by the TTL digital
lines of a CIO-DUAL-AC5.

Solid State Relays (SSRs) allow control and monitoring of AC and high DC voltages and provide 750 V
isolation. SSRs are the recommended method of interfacing to AC and high DC signals.

The most convenient way to use solid state relays and a CIO-DUAL-AC5 board is to use a solid state relay
rack. A SRR rack circuit board has output buffers to switch the socketed SSRs. The rack recommended for use
with the CIO-DUAL-AC5 board is the SSR-PB24 from Measurement Computing Corporation.

Information on digital I/O techniques

General information regarding digital I/O techniques is available in the Guide to Signal Connections (available
at www.mccdaq.com/signals/signals.pdf).

14

Digital type (main connector)

8255 mode 0 emulation

Output

74S244

Input

74LS373

Configuration

4 banks of 8, 4 banks of 4, programmable by bank as input or output

Number of channels

48 I/O

Output high

2.4 volts min @ -15 mA

Output low

0.5 volts max @ 64 mA

Input high

2.0 volts min, 7 volts absolute max

Input low

0.8 volts max, -0.5 volts absolute min

Power-up / reset state

Input mode (high impedance)

Miscellaneous

Locations provided for installation of pull-up or pull-down resistors.

+5 V Operating

800 mA typical, 1.30 A max

Operating temperature range

0 to 70 °C

Storage temperature range

-40 to 100 °C

Humidity

0 to 90% non-condensing

Connector type

50-pin header connectors P1 (front) and P2 (rear)

Compatible cables

C50FE-x
C50FF-x

Compatible accessory products with
the C50FE-x

SSR-PB24

Compatible accessory products with
the C50FF-x

CIO-TERM100
CIO-SPADE50
CIO-MINI50
SCB-50
SCB-100

Specifications

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

Digital I/O

Table 1. DIO specifications

Chapter 4

Power consumption

Table 2. Power consumption specifications

Environmental

Table 3. Environmental specifications

Main connectors and pin out

Table 4. Main connector specifications

15

CIO-DUAL-AC5 User's Guide Specifications

Pin

Signal Name

Pin

Signal Name

1

Port C7

2

GND 3 Port C6

4

GND 5 Port C5

6

GND 7 Port C4

8

GND 9 Port C3

10

GND

11

Port C2

12

GND

13

Port C1

14

GND

15

Port C0

16

GND

17

Port B7

18

GND

19

Port B6

20

GND

21

Port B5

22

GND

23

Port B4

24

GND

25

Port B3

26

GND

27

Port B2

28

GND

29

Port B1

30

GND

31

Port B0

32

GND

33

Port A7

34

GND

35

Port A6

36

GND

37

Port A5

38

GND

39

Port A4

40

GND

41

Port A3

42

GND

43

Port A2

44

GND

45

Port A1

46

GND

47

Port A0

48

GND

49

+5V

50

GND

Pin

Signal Name

Pin

Signal Name

1

Port C7

2

GND 3 Port C6

4

GND 5 Port C5

6

GND 7 Port C4

8

GND 9 Port C3

10

GND

11

Port C2

12

GND

13

Port C1

14

GND

15

Port C0

16

GND

17

Port B7

18

GND

19

Port B6

20

GND

21

Port B5

22

GND

23

Port B4

24

GND

25

Port B3

26

GND

27

Port B2

28

GND

29

Port B1

30

GND

31

Port B0

32

GND

33

Port A7

34

GND

35

Port A6

36

GND

37

Port A5

38

GND

39

Port A4

40

GND

41

Port A3

42

GND

43

Port A2

44

GND

45

Port A1

46

GND

47

Port A0

48

GND

49

+5V

50

GND

Connector P1 pin out

Table 5. Connector P1 pin out

Connector P2 pin out

Table 6. Connector P2 pin out

16

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-DUAL-AC5

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 B.
 IEC 801-3 (1984): Radiated Electromagnetic Field immunity Criteria A.
 IEC 801-4 (1988): Electric Fast Transient Burst immunity Criteria B.

Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in
December, 1995. Test records are outlined in Chomerics Test Report #EMI0168B.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

[phone]

Fax: [phone]

E-mail: [e-mail]

www.mccdaq.com