SeaLevel SeaPORT REL-16 Manuel utilisateur
Part # 8208
Sealevel Systems, Inc
155 Technology Place
P.O. Box 830
Liberty, SC 29657 USA
Phone: (864) 843-4343
FAX: (864) 843-3067
www.sealevel.com
SeaPORT REL-16
USER MANUAL
TM
Contents
INTRODUCTION..................................................................................................1
OVERVIEW .................................................................................................................1
WHAT’S INCLUDED....................................................................................................1
INSTALLATION....................................................................................................1
TECHNICAL DESCRIPTION............................................................................2
FEATURES..................................................................................................................2
REED RELAYS ............................................................................................................2
RELAY SPECIFICATIONS .............................................................................................2
APPLICATION PROGRAMMERS INTERFACE (API) .......................................................3
SERIAL STRING...........................................................................................................3
RELATIVE ADDRESSING VS. ABSOLUTE ADDRESSING...................................................3
Side Panel View Port A.................................................................................5
Side Panel View Port B.................................................................................5
3RD PARTY SOFTWARE SUPPORT................................................................................6
SPECIFICATIONS...............................................................................................7
ENVIRONMENTAL SPECIFICATIONS.............................................................................7
POWER CONSUMPTION..............................................................................................7
MEAN TIME BETWEEN FAILURES (MTBF)................................................................7
APPENDIX A -TROUBLESHOOTING...........................................................8
APPENDIX B -HOW TO GET ASSISTANCE................................................9
APPENDIX C -SILK-SCREEN......................................................................10
APPENDIX D -COMPLIANCE NOTICES..................................................11
FEDERAL COMMUNICATIONS COMMISSION STATEMENT........................................11
EMCDIRECTIVE STATEMENT.................................................................................11
WARRANTY.......................................................................................................12
© 2002c Sealevel Systems, Incorporated. All rights reserved.
Figure 1:Addressing Tables........................................................................4
Figure 2:Pin Assignments...........................................................................5
Figure 3:Box Layout View..........................................................................5
Introduction and Installation
Sealevel Systems SeaPORTREL-16 Page 1
Introduction
Overview
The SeaPORT REL-16 provides 16 reed relays that can latch power, data or
other electronic signals for control applications. The SEAPORT REL-16 is
USB 1.1 compliant.
What’s Included
The SeaPORT REL-16 is shipped with the following items. If any of these
items is missing or damaged, contact the supplier.
•SeaPORT REL-16 Adapter
•Sealevel Software
•USB A to B Cable, Part number CA179
Installation
Be sure to install the software before the hardware.
Choose Install Software at the beginning of the CD. Select the Digital I/O
software drivers and install SeaIO prior to installing hardware. After installing
the software, connect the USB cable to the SeaPORT REL-16 with the other
end connecting to any Upstream Type “A” USB port. The port can be either the
PC host or an upstream hub. When connected and properly enumerated, the
device’s enable LED will come on. The device will not open properly until it
has been enumerated by the operating system.
Specifications
Sealevel Systems SeaPORTREL-16 Page 2
Technical Description
The SeaPORT REL-16 provides two parallel reed relay output ports. The ports
are organized as ports A, and B. The SeaPORT REL-16 is a line-powered
device requiring a USB port capable of sourcing 500 mA.
Features
•16 SPST relays
•Removal Terminal block connectors
•Highly reliable 10 VA DIP reed relays utilized
•Multiple adapters can be used in same computer
Reed Relays
Reed relays provide very high quality, long life, low power, dry contact switch
closures. Reed relays are not suited for high current applications, or inductive
loads. The relays are normally open, and close when energized.
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 mS
Release: .5 mS
Bounce: .5 mS
•Maximum Operating Speed: 600 Hertz
Specifications
Sealevel Systems SeaPORTREL-16 Page 3
Application Programmers Interface (API)
Most modern operating systems do not allow direct hardware access. The
SeaI/O driver and API have been included to provide control over the hardware
in Windows. The purpose of this section of the manual is to help the customer
with the mapping of the API to the actual I/O and relays for the SeaPORT
REL-16 specifically. Complete documentation of the API can be found in the
SeaI/O help file.
Serial String
Each device has an eight digit alphanumeric serial string stored in non-volatile
memory. On the Windows platforms, this number is used to give each unit a
separate identity. This identity allows the device to be moved to any USB port
or hub port on your computer while retaining its device number. If a device
becomes damaged and is replaced the new device should be given the same
serial string as the device it is replacing. This string is stored in a EEPROM
along with other critical information. This EEPROM is read during
enumeration. The device should not be unplugged during its enumeration due to
remote possibility that the data in the EEPROM could be corrupted if power is
removed during a read/write cycle to the EEPROM. Enumerator is complete
when the LED is lit.
The control panel utility provides the capability to read or modify this string.
However, setting the same string for two units will cause the second unit
to fail enumeration, and make it invisible to the operating system. Should
this occur, unplug one unit and set the serial string for the other unit to a
different value.
Relative Addressing vs. Absolute Addressing
The SeaI/O 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 0; Port #1 refers to the I/O address 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.
Specifications
Sealevel Systems SeaPORTREL-16 Page 4
Tables: API Port/bit reference numbers for Absolute and Relative
Addressing
R = Read
W = Write
R/W = Read or Write
Figure 1:Addressing Tables
Port API Port # Absolute
Address (function) API Port #
Relative Address
(function)
Port Type
A0 ( R/W ) 0 (W) Reed Relay output port
B1 ( R/W ) 1 (W) Reed Relay output port
API Bit # Absolute Address
(function) API Bit # Relative
Address (function) Port Bit
0 ( R/W ) 0 (W) A0 -Output
1 ( R/W ) 1 (W) A1 -Output
2 ( R/W ) 2 (W) A2 -Output
3 ( R/W ) 3 (W) A3 -Output
4 ( R/W ) 4 (W) A4 -Output
5 ( R/W ) 5 (W) A5 -Output
6 ( R/W ) 6 (W) A6 -Output
7 ( R/W ) 7 (W) A7 -Output
8 ( R/W ) 0 (W) B0 –Output
9 ( R/W ) 1 (W) B1 –Output
10 ( R/W ) 2 (W) B2 –Output
11 ( R/W ) 3 (W) B3 –Output
12 ( R/W ) 4 (W) B4 –Output
13 ( R/W ) 5 ( W) B5 –Output
14 ( R/W ) 6 (W) B6 –Output
15 ( R/W ) 7 (W) B7 –Output
Specifications
Sealevel Systems SeaPORTREL-16 Page 5
Pin Assignments (Removable Terminal Block)
Port A Bit Port A Terminals
0 0,1
12,3
24,5
3 6,7
4 8,9
510,11
6 12,13
714,15
Port B Bit Port B Terminals
0 0,1
12,3
24,5
3 6,7
4 8,9
510,11
6 12,13
714,15
Figure 2:Pin Assignments
Side Panel View Port A
7 6 5 4 3 2 1 0 Port : A
E
Side Panel View Port B
7 6 5 4 3 2 1 0 Port : B
Figure 3:Enclosure Layout View
Specifications
Sealevel Systems SeaPORTREL-16 Page 6
3rd Party Software Support
Third party software support for many HMI/MMI and other process control
software is included on the product installation CD. For the most up to date
information on third party software support, please visit
http://www.sealevel.com/3rdpartysw.htm.
Specifications
Sealevel Systems SeaPORTREL-16 Page 7
Specifications
Environmental Specifications
Specification Operating Storage
Temperature
Range 0º to 70º C
(32º to 158º F) -20º to 70º C
(-4º to 158º F)
Humidity Range 10 to 90% R.H.
Non-Condensing 10 to 90% R.H.
Non-Condensing
Power Consumption
Supply line +5 VDC
Rating 500 mA
Mean Time Between Failures (MTBF)
Greater than 150,000 hours. (Calculated)
Appendix A -Troubleshooting
Sealevel Systems SeaPORTREL-16 Page 8
Appendix A -Troubleshooting
Following these simple steps can eliminate most common problems.
Install software first. After installing the software then proceed to adding the
hardware. This places the required installation files in the correct locations.
1. Read this manual thoroughly before attempting to install the adapter in
your system.
2. Use Device Manager under Windows to verify proper installation.
3. Use the SeaIO control panel applet for card identification and
configuration.
If these steps do not solve your problem, 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.
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