SeaLevel REL-16 3095 Manual de usuario

REL-16™

USER’S MANUAL

Part Number 3095

Sealevel Systems, Inc Phone: (864) 843-4343

155 Technology Place Fax: (864) 843-3067

P.O. Box 830 www.sealevel.com

Liberty, SC 29657

Contents

INTRODUCTION ...............................................................................1

OVERVIEW ....................................................................................................1

WHAT’S INCLUDED ......................................................................................1

FACTORY DEFAULT SETTINGS ......................................................................1

CARD SETUP....................................................................................2

ADDRESS SELECTION ....................................................................................2

INSTALLATION.................................................................................3

SOFTWARE INSTALLATION...........................................................................3

For Windows Users................................................................................3

TECHNICAL DESCRIPTION .............................................................4

FEATURES ....................................................................................................4

OUTPUT PORTS (REED RELAY)....................................................................5

RELAY SPECIFICATIONS................................................................................5

Output Ports (Reed Relay) Pin Assignments (P2)..............................6

PROGRAMMING..............................................................................7

APPLICATION PROGRAMMERS INTERFACE (API)..........................................7

Relative Addressing vs. Absolute Addressing......................................7

DIRECT HARDWARE CONTROL.....................................................................9

Reading the Outputs (relays) (direct) :.................................................9

Writing the Outputs (relays) (direct) : .................................................9

SPECIFICATIONS ...........................................................................10

ENVIRONMENTAL SPECIFICATIONS.............................................................10

POWER CONSUMPTION...............................................................................10

MEAN TIME BETWEEN FAILURES (MTBF).................................................10

PHYSICAL DIMENSIONS..............................................................................10

APPENDIX A -TROUBLESHOOTING............................................11

APPENDIX B -HOW TO GET ASSISTANCE...................................12

APPENDIX C -SILK-SCREEN........................................................13

APPENDIX D -SCHEMATIC ..........................................................14

APPENDIX E -COMPLIANCE NOTICES........................................16

FEDERAL COMMUNICATIONS COMMISSION STATEMENT ...........................16

EMC DIRECTIVE STATEMENT....................................................................16

WARRANTY....................................................................................17

Figures

Figure 1 -Address Selection Table....................................................................2

Figure 2 -DIP-Switch Illustration....................................................................2

Introduction

Sealevel Systems REL-16 Page 1

Introduction

Overview

The REL-16 provides 16 reed relays that can latch power, data or other

electronic signals for control applications. The REL-16 is PC compatible and

fits any half length ISA or EISA slot. Addressing, data and control signals are

TTL compatible.

The REL-16 is simple to operate. By writing instruction bytes to the I/O port

addresses, the reed relays are energized or de-energized.

What’s Included

The REL-16 is shipped with the following items. If any of these items are

missing or damaged, contact the supplier.

•REL-16 Interface Adapter

•Relay/Digital I/O Software

•User manual

Factory Default Settings

The REL-16 factory default settings are as follows:

Base Address IRQ

300 5

To install the REL-16 using factory default settings, refer to Installation on

page 3.

For your reference, record installed REL-16 settings below:

Base Address IRQ

Installation

Sealevel Systems REL-16 Page 2

Card Setup

The REL-16 contains several jumper straps for each port which must be set for

proper operation.

Address Selection

The REL-16 occupies a total of 2 I/O locations. The DIP-switch (SW1) is used

to set the base address for these locations. Be careful when selecting the base

address as some selections conflict with existing PC ports. The following table

shows several examples that usually do not cause a conflict.

Address Binary Switch Settings

12345678

100-104 01 0000 00xx Off On On On On On On On

104-108 01 0000 01xx Off On On On On On On Off

200-204 10 0000 00xx On Off On On On On On On

280-283 10 1000 00xx Off On Off On On On On On

284-287 10 1000 01xx Off On Off On Off On On Off

2EC-2EF 10 1110 11xx Off On Off Off Off On Off Off

300-303 11 0000 00xx Off Off On On On On On On

320-323 11 0010 00xx Off Off On On Off On On On

388-38B 11 1000 10xx Off Off Off On On On Off On

3A0-3A3 11 1010 00xx Off Off Off On Off On On On

3A4-3A7 11 1010 01xx Off Off Off On Off On On Off

Figure 1-Address Selection Table

The following illustration shows the correlation between the DIP-switch

setting and the address bits used to determine the base address. In the example

below, address 302 is selected as the base address. Address 302 in binary is

XX 11 0000 00XX where X= a non-selectable address bit and address bit A9

is always a 1.

1 2 3 4 5 6 7

OFF

A9 A2

Figure 2-DIP-Switch Illustration

Note: Setting the switch ‘On’ or ‘Closed’ corresponds to a ‘0’ in the address,

while leaving it ‘Off’ or ‘Open’ corresponds to a ‘1’.

Installation

Sealevel Systems REL-16 Page 3

Installation

The REL-16 can be installed in any ISA PC expansion slot. The REL-16

contains a DIP-switch (SW1) which must be set prior to installation.

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

2. Remove the PC case cover.

3. Locate an two available slots and remove the blank metal slot covers.

4. Gently insert the REL-16 into the slot. Make sure the adapter is seated

properly.

5. Replace the cover.

6. Connect the power cord.

Installation is complete.

Software Installation

For Windows Users

Choose Install Software at the beginning of the CD and select the Digital I/O

software drivers and install SeaIO.

Technical Description

Sealevel Systems REL-16 Page 4

Technical Description

The REL-16 provides two output (I/O) ports. The ports are organized as ports

A and B and are reed relay output ports. Assuming an I/O address of 302 Hex

the following table shows the Port Addresses.

Base Address Hex Decimal Mode

300 768 Unused

301 769 Unused

Port A Address 302 770 Output Port (Reed Relays)

Port B Address 303 771 Output Port

Please note that ports A and B are output ports with read-back capability,

meaning that they can be written (output) to and then read back as inputs. What

ever was written will always be read back (binary complement). This allows for

bits to be set or reset without altering the state of the other port bits.

Features

•Selectable I/O port addressing from 100H -3FFH

•2 sets SPST relays with each set having 8 relays

•DB-37 male connector for relay outputs

•Highly reliable 10 VA DIP reed relays utilized

•8 bit slot connector

•Multiple adapters can reside in same computer

•All address, data and control signals are TTL compatible

Technical Description

Sealevel Systems REL-16 Page 5

Output Ports (Reed Relay)

The output ports on the REL-16 relay output are connected to 16 dip reed

relays. 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. Each relay can be individually energized by writing a "1"

to the proper port bit.

Relay Specifications

•Contact Power Ratings: 10 Watts Maximum

•Contact Voltage Maximum: 100 Volts DC or AC Maximum

•Contact Current Maximum: .5 Amps DC or AC RMS

•Contact Resistance, Initial: .15 Ohms

•Rated Life:

Low Load: 200 Million Closures

Maximum Load: 100 Million Closures

•Contact Speed:

Operate: .5 m Sec

Release: .5 m Sec

Bounce: .5 m Sec

•Maximum Operating Speed: 600 Hertz

Technical Description

Sealevel Systems REL-16 Page 6

Output Ports (Reed Relay) Pin Assignments (P2)

Port C

Bit Relay P2 Pin Port D

Bit Relay P2 Pin

0 K16 2,20 0K8 10,28

1K15 3,21 1K7 11,29

2K14 4,22 2K6 12,30

3 K13 5,23 3K5 13,31

4 K12 6,24 4K4 14,32

5K11 7,25 5K3 15,33

6 K10 8,26 6K2 16,34

7K9 9,27 7K1 17,35

Ground 18,36,37

+ 5 Volts 19

+ 12 Volts 1

Technical Description

Sealevel Systems REL-16 Page 7

Programming

Application Programmers Interface (API)

Most modern operating systems do not allow direct hardware access. The

SeaIO driver and API have been included to provide control over the hardware

in Windows and Linux environments.

The purpose of this section of the manual is to help the customer with the

mapping of the API to the actual relays for the 3095 specifically. Complete

documentation of the API can be found in its accompanying help file.

Relative Addressing vs. Absolute Addressing

The SeaIO API makes a distinction between “absolute” and “relative”

addressing modes. In absolute addressing mode, the Port argument to the API

function acts as a simple byte offset from the base I/O address of the device.

For instance, Port #0 refers to the I/O address base + 0; Port #1 refers to the

I/O address base + 1.

Relative addressing mode, on the other hand, refers to input and output ports in

a logical fashion. With a Port argument of 0 and an API function meant to

output data, the first (0th) output port on the device will be utilized. Likewise,

with a Port argument of 0 and an API function designed to input data, the first

(0th) input port of the device will be utilized.

In all addressing modes, port numbers are zero-indexed; that is, the first port is

port #0, the second port is #1, the third #2, and so on.

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