SeaLevel REL-16 3095 Manuale utente
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
©2002a Sealevel Systems,Incorporated. All rights reserved.
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
ON
OFF
A9 A2
8
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.
Indice
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