SeaLevel DIO-32.PCI Manuale utente

DIO-32.PCI

User Manual | 8004

Contents

CONTENTS............................................................................................................................................................................................................................2

INTRODUCTION...................................................................................................................................................................................................................3

BEFORE YOU GET STARTED..............................................................................................................................................................................................4

INSTALLATION.....................................................................................................................................................................................................................5

PROGRAMMING THE DIO-32.PCI.....................................................................................................................................................................................7

ELECTRICAL CHARACTERISTICS...................................................................................................................................................................................15

SPECIFICATIONS...............................................................................................................................................................................................................16

EXAMPLE CIRCUITS .........................................................................................................................................................................................................18

APPENDIX A –TROUBLESHOOTING.............................................................................................................................................................................19

APPENDIX B –HOW TO GET ASSISTANCE..................................................................................................................................................................20

APPENDIX C –SILK SCREEN –8004 PCB.................................................................................................................................................................21

APPENDIX D –COMPLIANCE NOTICES........................................................................................................................................................................22

WARRANTY ........................................................................................................................................................................................................................23

Introduction

Overview

The DIO-32.PCI digital I/O interface provides 16 optically isolated inputs and 16 reed relay outputs. The

inputs (rated for 3-13V) protect the PC and other sensitive equipment from spikes and ground loop current

that can be generated in industrial environments, while the outputs provide high quality, long life, low current

(10 Watt maximum), dry contact switch closures. Reed relays are well suited for low current applications.

The relays are normally open, and close when energized.

The DIO-32.PCI is designed to be used with a variety of Operating Systems including Windows

98/NT/ME/2000/XP, Linux, and DOS. The SeaI/O API (Application Programmer Interface) software

provides a variety of useful high-level function calls implemented as a Windows dynamic link library (DLL)

and as a Linux kernel module and library. In addition to the API, SeaI/O includes sample code and utilities

to simplify software development.

Other Sealevel PCI Digital I/O Products

Model No.

Part No.

Description

PIO-24.PCI

(P/N 8008)

- 24 TTL Inputs/Outputs

PIO-32.PCI

(P/N 8010)

- 32 TTL Inputs/Outputs

PIO-48.PCI

(P/N 8005)

- 48 TTL Inputs/Outputs

PIO-96.PCI

(P/N 8009)

- 96 TTL Inputs/Outputs

DIO-16.PCI

(P/N 8002)

- 8 Reed Relay Outputs/8 Opto-isolated Inputs

REL-16.PCI

(P/N 8003)

- 16 Reed Relay Outputs

ISO-16.PCI

(P/N 8006)

- 16 Opto-isolated Inputs

REL-32.PCI

(P/N 8007)

- 32 Reed Relay Outputs

PLC-16.PCI

(P/N 8011)

- 8 Form C Relay Outputs/8 Opto-isolated Inputs

Before You Get Started

What’s Included

The DIO-32.PCI is shipped with the following items. If any of these items are missing or damaged, please

contact Sealevel for replacement.

•Item# 8004 –DIO-32.PCI Adapter

•Item# CA165 –DB-78 Male to DB-37 Male and DB-37 Female V-cable

Advisory Conventions

Warning

The highest level of importance used to stress a condition where damage could result to the

product, or the user could suffer serious injury.

Important

The middle level of importance used to highlight information that might not seem obvious or a

situation that could cause the product to fail.

Note

The lowest level of importance used to provide background information, additional tips, or other

non-critical facts that will not affect the use of the product.

Optional Items

Depending upon your application, you are likely to find one or more of the following items useful for

interfacing the DIO-32.PCI to real-world signals. All items can be purchased from our website

(http://www.sealevel.com) or by calling (864) 843-4343.

•DB78M to DB-37 Female and DB-37 Male, for 3093 (Item# CA378)

The CA378 is designed specifically for customers using the 3093 ISA digital I/O board that need to

upgrade to the 8004 PCI digital I/O board while preserving existing infrastructure wiring. The

CA378 connects to the 8004 and provides an identical pin out to the 3093.

•DB-37 Male to DB-37 Female Extension Cable (Item# CA112)

This cable provides a 6’ extension to the CA165. It has one DB37 Male connector and one DB37

Female connector.

•DB-37 Male/Female Terminal Block (Item# TB02)

Break out serial and digital connectors to screw terminals for easy field connection. The TB02

terminal block is designed with both DB37 male and female connectors, therefore; it can be used

with any DB37 board regardless of the board's port gender.

•Cable and Terminal Block Kit (Item# KT101)

The KT101 includes the TB02 terminal block and CA112 cable. To fully connect the DIO-32.PCI two

KT101 kits will be required.

Installation

Operating System Installation

For Windows Users

Begin by locating, selecting, and installing the SeaIO software from the website: SeaIO software.

SeaI/O software can also be downloaded from the 8004-product webpage: DIO-32.PCI Product Page

Other Operating Systems

Refer to the appropriate section of the Serial Utilities Software.

LINUX INSTALLATION

Refer to Linux Archives - Sealevel. This link contains valuable information on installing your serial

adapter in the various Linux releases. Also included is a series of files explaining proper Linux syntax and

typical Linux serial implementations.

For additional software support, please call Sealevel Systems’ Technical Support, (864) 843-4343. Our

technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For

email support contact: mailto:sup[email protected]om.

INSTALLATION, CONTINUED

Hardware Installation

The adapter can be installed in any 5V PCI expansion slot.

Do not install the Adapter in the machine until the software has been fully installed.

1. Turn off PC power. Disconnect the power cord.

2. Remove the PC case cover.

3. Locate an available 5V PCI slot and remove the blank metal slot cover.

4. Gently insert the PCI adapter into the slot. Make sure that the adapter is seated

properly.

5. After the adapter has been installed, the cables should be routed thru the opening in

the bracket. This bracket also features a strain relief function that should be used to

prevent un-expected cable removal.

6. Replace the screw you removed for the blank and use it to secure the adapter into the

slot. (This is required to ensure FCC Part 15 compliance.)

7. Replace the cover.

8. Connect the power cord

Installation is finished.

Programming the DIO-32.PCI

Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel

Systems family of digital I/O adapters. The software also includes driver functions for use in accessing

the I/O as well as helpful samples and utilities.

Programming for Windows

The SeaI/O API (Application Programmer Interface) provides a variety of useful high-level function

calls implemented in a Windows dynamic link library (DLL). The API is defined in the help file

(Start/Programs/SeaIO/SeaIO Help) under “Application Programmers Interface”. This help file

also includes detailed information dealing with installation / removal of the software and

information about latency, logic states, and device configuration.

For C language programmers we recommend using the API to access the DIO-32.PCI. If you are

programming in Visual Basic, using the ActiveX control included with SeaI/O is advised.

Samples and Utilities

A variety of sample programs and utilities (both executable and source code) are included with

SeaI/O. Further documentation on these samples can be found by selecting

“Start/Programs/SeaI/O/Sample Application Description”. Information about where the files are

physically stored on your disk is also included in this same file.

Programming for Linux

SeaI/O for Linux consists of two major parts: a kernel module and a library. The kernel module is a

simple IO pass-through device, allowing the library to handle the more sophisticated functions

provided to SeaI/O users. It is provided in a ‘tarball’ format and can easily be compiled and included

in the kernel build.

PROGRAMMING THE DIO-32.PCI, CONTINUED

Digital I/O Interface

The DIO-32.PCI provides four parallel input/output (I/O) ports. The ports are organized as ports A,

B, C, and D. Port A and B are input ports interfaced to optically isolated inputs, while ports C and D

are reed relay output ports. Assuming an I/O address of 300 Hex the following table shows the Port

Addresses.

Base Address

Hex

Decimal

Mode

Port A Address

300

768

Port B Address

301

769

Optically Isolated Input Port

Port C Address

302

770

Port D Address

303

771

Reed Relay Output Port

Input Ports

Ports A and B are 8-bit input ports connected to optically isolated input sensors. Each sensor can

be used to interface a voltage input and then sense whether the voltage is on or off. Each sensor

is isolated (with respect to a common ground) from every other sensor, and also isolated with

respect to the host PC ground. This means that signals such as low-level AC line voltage, motor

servo voltage, and control relay signals can be ‘sensed’, or read by the PC, without the risk of

damage due to ground loops or ground faults.

Each sensor input pair has a current limiting resistor that is used to limit the input current to the

opto-isolator. The opto-isolator has two ‘back-to-back’ diodes internally. This allows AC or DC

signals to be sensed, regardless of polarity. When the applied voltage is high enough to cause the

led in the opto-isolator to turn-on, the output of the opto-isolator goes low (0 volts), and the signal

is read as a low logic level (binary 0) by the PC. When the input signal is too low to turn on the opto-

isolator, the output goes high, and the port bit is read by the PC as a high logic level (binary 1).

The input impedance of each isolated input is approximately 560 ohms (factory default). The opto-

isolator requires approximately 3mA to turn on. The maximum input current is 50mA. There are

two things to consider when selecting the input resistor. The first is turn on voltage for the circuit

to sense, and second is the maximum input voltage. Maximum input voltage must not provide too

much power to the input resistor and must also not overdrive the opto-isolator input current

specification. The following formulas apply:

Turn on Voltage = diode drop + (turn on current) x (resistance) [Ex: 1.1 + (.003) x R]

Input Current = ((input voltage)-1.1V) / (resistor value)

Maximum voltage = 1.1 + square root of (.25(resistor value))

PROGRAMMING THE DIO-32.PCI, CONTINUED

The following table shows common input resistors and the ranges associated with each.

Input Resistor

Turn-On

Input Range

Max Input

Max Current

220

1.8V

1.8 –7.0V

8.5V

27mA

560

2.8V

2.8 –10.6V

12.9V

20mA

1K

4.1V

4.1 –13.8V

16.9V

15mA

2.2K

7.7V

7.7 –20.0V

24.5V

10mA

3.3K

10.0V

10.0 –24.0V

30.0V

9mA

4.7K

15.2V

15.2 –28.0V

35.0V

7mA

The turn-off voltage for all resistors is less than 1V.

Increasing the input resistor accordingly can increase the maximum input voltage. Because

socketed DIP resistors are utilized, they can easily be replaced with a different value. Sealevel can

do this, if necessary.

The input circuits are not intended for monitoring 120-volt AC circuits. In addition to being too high

a voltage for the circuits, it is dangerous to have that high a voltage on the card.

Input Ports Pin Assignments (DB-37 Female)

Inputs are interfaced via the DB-37 female connector on the supplied CA165 cable.

Port A Bit

Port A Pins

Port B Bit

Port B Pins

18,37

10,29

17,36

9, 28

16,35

8,27

15,34

7,26

14,33

6,25

13,32

5,24

12,31

4,23

11,30

3,22

Ground

2,20,21

+12 Volts

+5 Volts

PROGRAMMING THE DIO-32.PCI, CONTINUED

The CA165 cable input pin out is not compatible with the 3093 ISA digital I/O board. If you are

upgrading from the 3093 and wish to preserve existing infrastructure wiring, order the CA378 cable.

Output Ports (Reed Relay)

Reed relays provide very high quality, long life, low current (10 Watt maximum), dry contact switch closures.

Reed relays are not suited for high current applications, and can be destroyed by inductive load switching,

where a spark occurs across the contacts internally. The relays are normally open, and close when

energized.

Output Ports (Reed Relay) Pin Assignments (DB-37 Male)

Outputs are interfaced via the DB-37 male connector on the supplied CA165 cable.

Port C Bit

Relay

Port C Pins

Port D Bit

Relay

Port D Pins

K16

2,20

10,28

K15

3,21

11,29

K14

4,22

12,30

K13

5,23

13,31

K12

6,24

14,32

K11

7,25

15,33

K10

8,26

16,34

9,27

17,35

Ground

18,36,37

+ 5 Volts

+ 12 Volts

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