SeaLevel SeaPORT PIO-96 User manual

Part # 8205
Sealevel Systems, Inc
155 Technology Place
P.O. Box 830
Liberty, SC 29657 USA
Phone: [phone]
FAX: [phone]
www.sealevel.com
TM
SeaPORT PIO-96
USER MANUAL

Contents
INTRODUCTION..................................................................................................1
OVERVIEW .................................................................................................................1
WHAT’S INCLUDED....................................................................................................1
INDUSTRY STANDARD RELAY RACK CABLES AND OPTIONS......................................1
INSTALLATION.................................................................................................1
TECHNICAL DESCRIPTION............................................................................2
SOFTWARE ................................................................................................................2
3RD PARTY SOFTWARE SUPPORT................................................................................2
ELECTRICAL CHARACTERISTICS.................................................................................3
BANKS AND PORTS....................................................................................................5
SERIAL STRING...........................................................................................................5
50 PIN RIBBON CABLE PIN OUT....................................................................................6
PROGRAMMING................................................................................................7
APPLICATION PROGRAMMERS INTERFACE (API) .......................................................7
PRESETTING AN OUTPUT PORT:.................................................................................7
INTERRUPTS:..............................................................................................................7
PORT CONFIGURATION:.............................................................................................8
RELATIVE ADDRESSING VS. ABSOLUTE ADDRESSING...................................................9
SPECIFICATIONS............................................................................................12
ENVIRONMENTAL SPECIFICATIONS..........................................................................12
POWER CONSUMPTION...........................................................................................12
MEAN TIME BETWEEN FAILURES (MTBF).............................................................12
APPENDIX A -TROUBLESHOOTING........................................................13
APPENDIX B -HOW TO GET ASSISTANCE.............................................14

APPENDIX C -SILK-SCREEN......................................................................15
APPENDIX D -COMPLIANCE NOTICES..................................................16
FEDERAL COMMUNICATIONS COMMISSION STATEMENT........................................16
EMC DIRECTIVE STATEMENT ................................................................................16
WARRANTY.......................................................................................................17
FIGURES
Figure 1-Operating Conditions.................................................................3
Figure 2-Pull Up Resistors.........................................................................4
Figure 3-Bank and Ports.............................................................................5
Figure 4-50 Pin Header/Ribbon Cable Pin out......................................6
Figure 5-Absolute Byte Address (Same for any configuration) ..........9
Figure 6-Relative Byte Address (Only applies to the given configuration)
...................................................................................................................9
Figure 7-Absolute Bit Address (Same for any configuration)...........10
Figure 8-Relative Byte Address (Print and fill in for your configuration)
.................................................................................................................11
Figure 9-Bit Relative Address (Print and fill in for your configuration)
.................................................................................................................11
© 2001l Sealevel Systems, Incorporated. All rights reserved.

Introduction and Installation
Sealevel Systems SeaPORTPIO-96 Page 1
Introduction
Overview
The Sealevel Systems SeaPORT PIO-96 provides twelve eight-bit ports that
may be individually configured as inputs or outputs.
What’s Included
The SeaPORT PIO-96 is shipped with the following items. If any of these
items is missing or damaged, contact the supplier.
•SeaPORT PIO-96 Adapter
•Sealevel Software CD
•5V Power Supply
•USB A to B Cable, Part number CA179
Industry Standard Relay Rack Cables and Options
•Part number CA135 for Edge Connection
•Part number CA167 for IDC Connection
•Part number TB07-50 pinterminal block
Installation
For proper operation install software first. To install the software place the CD
in your CD-ROM tray and the auto-run program will start. If auto-run is not
available browse the CD and choose “index.htm”. 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
power adapter and USB cable to the SeaPORT PIO-96. In the event that the
hardware is installed first, the “Found new hardware wizard” will request a
driver disk. Insert Sealevel Systems CD and browse the SeaIO directory for the
“SeaIO.inf” file. A complete installation of the SeaIO suite is recommended by
running setup. When plugged in the device will light its enable LED once
enumerated properly. Be sure to follow these steps to insure that the
SeaPORT PIO-96 opens and enumerates properly.

Specifications
Sealevel Systems SeaPORTPIO-96 Page 2
Technical Description
The SeaPORT PIO-96 provides 96 channels of digital I/O configurable as
inputs or outputs. Applications include PC based control and automation of
sensors, switches, satellite antenna control systems, video and audio studio
automation, security control systems, and other industrial automation.
Software
The SeaPORT PIO-96 ships with Sealevel Systems’ SeaI/O suite of Windows
98/NT/ME/2000 drivers. SeaI/O provides the user with a consistent and
straightforward API, allowing the developer to concentrate on the details of the
application as opposed to low level driver development. Popular development
environments are supported for application development. SeaI/O includes
sample applications and a utility for configuring the driver parameters under
Windows, further simplifying installation.
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 SeaPORTPIO-96 Page 3
Electrical Characteristics
Figure 1, below provides the electrical characteristics of each Input/Output.
Each port is buffered with a 74ABT245 octal bi-directional transceiver. Each
input is capable of sinking up to 64 mA, while each output can source up to 32
mA. The SeaPORT PIO-96 requires a 5V power source and is shipped with a
5V power supply rated at 2.4 A. The device uses 500mA leaving 1900 mA for
outputs. 1900/32 = 59.375; at most 59 outputs can drive 32 mA with the
provided 5V power supply. If the provided adapter is not sufficient for your
application, then an alternate 5V power supply rated higher than 2.4 A will be
required.
Recommended Operating Conditions
Min Max
Input 0 V 5.25 V
Source 32 mA
Sink 64 mA
Electrical Characteristics
High Level Input Voltage Min 2 V
Low Level Input Voltage Max 0.8 V
High Level Output Voltage Min 2 V at 32 mA
Typically 3.4 V at 3 mA
Low Level Output Voltage Max 0.55 V at 64 mA
Figure 1-Operating Conditions

Specifications
Sealevel Systems SeaPORTPIO-96 Page 4
Pull Ups
Ten pin bussed resistor packs are installed to provide pull-ups to the input
ports. These are installed on all ports. The pull-up resistor packs are rated at
10K ohms. Figure 2 below provides the bussed resistor and corresponding port.
The resistors insure that no line is floating which is not connected. This
provides consistent biasing on all un-terminated lines.
Bussed
Corresponding Bussed Corresponding
Resistor Port Resistor Port
RP3 Port A1 RP9 Port A3
RP2 Port B1 RP8 Port B3
RP1 Port C1 RP7 Port C3
RP6 Port A2 RP12 Port A4
RP5 Port B2 RP11 Port B4
RP4 Port C2 RP10 Port C4
Figure 2-Pull Up Resistors

Specifications
Sealevel Systems SeaPORTPIO-96 Page 5
Banks and Ports
The SeaPORT PIO-96 has four 50-pin headers. Each 50-pin header is a bank
of three ports, comprising a total of twelve eight bit ports. Each port is eight
bits wide and may be configured as an input or output port. Figure 3 below gives
the bank and port organization.
Bank 1 –P2 Bank 2 –P3 Bank 3 –P4 Bank 4 –P5
Port A1 Port A2 Port A3 Port A4
Port B1 Port B2Port B3 Port B4
Port C1 Port C2 Port C3 Port C4
Figure 3-Bank and Ports
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 an EEPROM along with other critical information. This
EEPROM is read during enumeration. The device should not be unplugged
during its enumeration due to a remote possibility that the data in the EEPROM
could be corrupted if power is removed during a read/write cycle.
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 string.

Specifications
Sealevel Systems SeaPORTPIO-96 Page 6
50 pin ribbon cable pin out
Each of the four 50 pin ribbon cable headers has the following pin out as shown
in Figure 4.
Description Pin #
Port A
A0 47
A1 45
A2 43
A3 41
A4 39
A5 37
A6 35
A7 33
Port B
B0 31
B1 29
B2 27
B3 25
B4 23
B5 21
B6 19
B7 17
Port C
C0 15
C1 13
C2 11
C3 9
C4 7
C5 5
C6 3
C7 1
GND All Even pins
+5V 49
Figure 4-50 Pin Header/Ribbon Cable Pin out

Specifications
Sealevel Systems SeaPORTPIO-96 Page 7
Programming
Application Programmers Interface (API)
The SeaIO driver, API, and utilities have been included to provide control over
the hardware in Windows environments. The following section is designed to
help the customer understand the API connection to the actual I/O for the
SeaPORT PIO-96.Complete documentation of the API can be found in the
SeaI/O help file.
Presetting an Output Port:
Each port has an output register associated with it. This register may be written
and retains its value whether the port is configured as an input or an output. To
preset the value of an output port the program should write to the port when it
is configured as an input then configure it as an output. Inputs cannot be written
to with relative addressing, absolute addressing must be used. Refer to
Relative Addressing vs. Absolute Addressingfor more information.
Interrupts:
Interrupt sampling can be set up in the API. Port A1 bit zero (0) is the
interrupt source (pin 47 of P2). Refer to the API section in the SeaI/O help
file for more information.