SeaLevel PIO-32.PCI User manual

PIO-32.PCI™
User Manual | 8001

Contents
CONTENTS...........................................................................................................................................................2
INTRODUCTION ...................................................................................................................................................3
BEFORE YOU GET STARTED ...............................................................................................................................4
INSTALLATION .................................................................................................................................................... 5
HARDWARE INSTALLATION ............................................................................................................................... 8
TECHNICAL DESCRIPTION .................................................................................................................................9
SOFTWARE.........................................................................................................................................................10
ELECTRICAL CHARACTERISTICS .....................................................................................................................12
PROGRAMMING.................................................................................................................................................13
DIRECT HARDWARE CONTROL ........................................................................................................................16
SPECIFICATIONS ...............................................................................................................................................18
APPENDIX A –TROUBLESHOOTING................................................................................................................19
APPENDIX B –HOW TO GET ASSISTANCE .....................................................................................................20
APPENDIX C –SILK SCREEN............................................................................................................................21
APPENDIX D –COMPLIANCE NOTICES ..........................................................................................................22
WARRANTY ........................................................................................................................................................23

Introduction
The Sealevel Systems PIO-32.PCI provides the PC with four 8-bit ports that can be defined independently
as input or output.

Before You Get Started
What’s Included
The PIO-32.PCI is shipped with the following items. If any of these items are missing or damaged, please
contact Sealevel for replacement.
•PIO-32.PCI Serial I/O Adapter
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.

Installation
Card Setup
The PIO-32.PCI is a fully compliant PCI ‘Plug and Play’ adapter. All card resources (i.e., I/O address, IRQ
selection) are auto-assigned by either your system BIOS or your ‘Plug and Play’ operating system.
Windows Installation
Do not install the Adapter in the machine until the software has been fully installed.
Only users running Windows 7 or newer should utilize these instructions for accessing and installing
the appropriate driver via Sealevel’s website. If you are utilizing an operating system prior to
Windows 7, please contact Sealevel by calling 864.843.4343 or emailing [e-mail] to
receive access to the legacy driver download and installation instructions.
1. Select the download for the SeaIO Classic for Windows (Software: SeaIO Classic V5 - Windows
- Sealevel.) The setup file will automatically detect the operating environment and install the
proper components. Next (depending on your browser) select the ‘Run this program from its
current location’ or ‘Open’ option. Follow the information presented on the screens that follow.
During setup, the user may specify installation directories and other preferred configurations. This
program also adds entries to the system registry that are necessary for specifying the operating
parameters for each driver. An uninstall option is also available to remove SeaIO files and
registry/INI file entries from the system.
2. If installing in NT, skip to step 11. ‘Windows NT Card Installation.’
3. Go to the “Add New Hardware Wizard” in the Control Panel.
4. When the Wizard asks if you want Windows to search for the new hardware, choose “No, I want to
select the hardware from a list.”
5. Scroll through the list of categorized hardware and select ‘SeaIO Devices.’ If this is the first SeaIO
device you may need to select ‘Other Devices’ and ‘Sealevel Systems, Inc.’ instead of ‘SeaIO
Devices.’
6. Click “Next.”
7. Select the card model and press “Next.”
8. The Wizard will guide you through a few more informational prompts; continue to click “Next” until
it is completed.
9. Your card’s resource assignments may be adjusted through the Device Manager (if, for instance,
you need to change the I/O port address Windows assigned when you installed the card).
10. Windows software installation is complete

Windows Installation, Continued
11. Windows NT Card Installation: After accomplishing steps 1, bring up the Control Panel and double-
click on the SeaIO Devices icon. To install a new card, click “Add Port.” Repeat this procedure for
as many SeaIO cards as you wish to install.
Linux Installation
You MUST have “root” privileges to install the software and drivers.
The syntax is case sensitive.
Users can obtain a README file included in the SeaIO Linux package which contains important
installation and configuration instructions that makes the Linux installation more user friendly.
1. Login as “root”
2. Select download for the version of SeaIO Classic for Linux (Software: SeaIO Classic - Linux -
Sealevel.)
3. Copy seaio.tar.gz to your home directory by typing:
cp seaio.tar.gz ~
4. Change to your home directory by typing:
cd
5. Unzip and Untar the drivers and software by typing:
tar -xvzf seaio.tar.gz
6. Change to the SeaIO directory by typing:
cd seaio
7. User must download and compile a Linux kernel source.
8. Now compile and prepare the drivers for use by typing:
make install
9. Using your favorite text editor, edit the /etc/seaio.conf
10. Within the quote marks, insert
cardtype=0xYourSeaIOcardType io=0xCardBaseAddress

Linux Installation, Continued
YourSeaIOcardType = Model Number of your SeaIO Card.
CardBaseAddress = What base address you have your SeaIO card addressed at.
11. Save the file and exit your editor.
12. With the system off and unplugged, install your SeaIO PCI card.
13. Plug system back in and boot Linux. Login as "root".
14. Load the SeaIO driver by typing:
seaioload
15. The driver has enabled the card and is ready to use.
To set up Linux to automatically load the driver; refer to a Linux manual concerning your specific distribution
for help.
For additional software support, please call Sealevel Systems’ Technical Support, [phone]. Our
technical support is free and available from 8:00 AM - 5:00 PM Eastern Time, Monday through Friday. For
email support contact: supp[email protected].

Hardware Installation
The PIO-32.PCI can be installed in any of the PCI expansion slots.
1. Turn off PC power. Disconnect the power cord.
2. Remove the PC case cover.
3. Locate an available PCI slot and remove the blank metal slot cover.
4. Gently insert the PIO-32.PCI into the slot. Make sure that the adapter is seated properly.
5. Replace the screw.
6. Replace the cover.
7. Connect the power cord.
Installation is complete.

Technical Description
The PIO-32.PCI provides 32 channels of digital I/O configurable as inputs or outputs, which can be utilized
for PC based control and automation of equipment. Uses include sensors, switches, satellite antenna
control systems, video and audio studio automation, security control systems, and other industrial
automation systems.
The PIO-32.PCI’s 32 channels consist of 4 ports of I/O, each port configurable as either input or output, to
suit the task at hand. The status of each of the 4 ports is user selectable as input or output by simply writing
a control word to the port register. This gives the user the ability to customize the combination of inputs
and outputs as needed.
For development purposes, the card’s DB37 connector can be interfaced directly to Sealevel’s terminal
block kit, Part# KT-101. The KT-101 kit, consisting of a 6 ft. M/F cable and positive tension screw terminal
block provides a simple means to connect field wiring the PIO-32.PCI.
Features
•32 Channels of Digital I/O configurable as inputs or outputs
•Implemented as 4 ports of 8 channels each of I/O providing flexible operation
•Terminal Block and cable kit available to simplify field wiring requirements
•Supports all PCI interrupts

Software
The PIO-32.PCI Software
The SeaI/O software 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.
Linux Users
The SeaI/O for Linux, includes a kernel-mode driver, API, and the SeaIOTst diagnostic tool. The kernel-mode
driver is provided as a module, so future driver upgrades may be performed with minimal (usually zero)
downtime. The Linux API is identical to its Windows counterpart, facilitating quick and easy ports of existing
SeaI/O-aware applications to the Linux operating system. All source code for the Linux software suite is
provided under the GNU Public License (GPL v2.0), to assist in "roll-your-own"-type applications.
3rd Party Software Support
For the most up to date information on third party software support, please visit 3rd Party Software
Support - Sealevel.

I/O Connector Pin-Out DB-37 Male
Pin #
Description
1
+5VDC
2
PA1
3
PA3
4
PA5
5
PA7
6
PB1
7
PB3
8
PB5
9
PB7
10
PC1
11
PC3
12
PC5
13
PC7
14
PD1
15
PD3
16
PD5
17
PD7
18
GND
19
GND
20
PA0
21
PA2
22
PA4
23
PA6
24
PB0
25
PB2
26
PB4
27
PB6
28
PC0
29
PC2
30
PC4
31
PC6
32
PD0
33
PD2
34
PD4
35
PD6
36
GND
37
GND

Electrical Characteristics
The table below provides the electrical characteristics of each Input/Output. Each port is buffered with a
74LS245 octal bi-directional transceiver. Each input is capable of sinking up to 24 mA, while each output
can source up to 15 mA.
Recommended Operating Conditions
Min
Max
Input
0 V
5.25 V
Source
15 mA
Sink
24 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 15 mA
Typically 3.4 V at 3 mA
Low Level Output Voltage
Max 0.55 V at 24 mA

Programming
Application Programmers Interface (API)
Most modern operating systems do not allow direct hardware access. The SeaIO driver and API are
available 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
inputs for the 8001 specifically. Complete documentation of the API can be found in its accompanying 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 and Absolute
Addressing below.
Interrupts
Interrupt sampling can be set up in the API. Port A bit zero is the interrupt source(pin 20). Refer to the API
section in the SeaI/O help file for more detailed information.
Port Configuration
Each eight-bit port can be configured as inputs or outputs. The API provides a set adapter state call to
access the control words. For this device, one control word is used.
Control Word 0 = input 1 = output
Port A –Bit 0
Port B –Bit 1
Port C –Bit 2
Port D –Bit 3
The control panel also allows you to configure the device. Your program can override the control
panel configuration when executed, but the control panel configuration will be the default on power
up. The default settings are based on the settings in the control panel application when last changed
and saved after re-booting.

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.
Given Port A and Port D are inputs and Port B, Port C are outputs, the Tables below show Absolute address,
and the relative address. The absolute address will be the same for any configuration, while the relative
address will depend on the particular configuration.
Absolute and Relative Addressing
Table:3 shows the API Port/bit reference numbers for Absolute and Relative Addressing
R = Read
W = Write
R/W = Read or Write
Port
API Port # Absolute
Address (function)
API Port # Relative
Address (function)
Port Type
A
0 ( R/W )
0 ( R )
Input Port
B
1 ( R/W )
0 ( W )
Output Port
C
2 ( R/W )
1 ( W )
Output Port
D
3 ( R/W )
1 ( R )
Input Port
Table 3-API Port/Bit Reference Numbers

API Bit # Absolute
Address (function)
API Bit # Relative
Address
(function)
Port Bit
0 ( R/w )
0 ( R )
A0 - Input
1 ( R/w )
1 ( R )
A1 - Input
2 ( R/w )
2 ( R )
A2 - Input
3 ( R/w )
3 ( R )
A3 - Input
4 ( R/w )
4 ( R )
A4 - Input
5 ( R/w )
5 ( R )
A5 - Input
6 ( R/w )
6 ( R )
A6 - Input
7 ( R/w )
7 ( R )
A7 - Input
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
16 ( R/W )
8 ( W )
C0 - Output
17 ( R/W )
9 ( W )
C1 - Output
18 ( R/W )
10( W )
C2 - Output
19 ( R/W )
11( W )
C3 - Output
20 ( R/W )
12( W )
C4 - Output
21 ( R/W )
13( W )
C5 - Output
22 ( R/W )
14( W )
C6 - Output
23 ( R/W )
15( W )
C7 - Output
24 ( R/W )
8 ( R )
D0 - Input
25 ( R/W )
9 ( R )
D1 - Input
26 ( R/W )
10 ( R )
D2 - Input
27 ( R/W )
11 ( R )
D3 - Input
28 ( R/W )
12 ( R )
D4 - Input
29 ( R/W )
13 ( R )
D5 - Input
30 ( R/W )
14 ( R )
D6 - Input
31 ( R/W )
15 ( R )
D7 - Input
Continuing with Table 4, the API Port/bit reference numbers for Absolute and Relative Addressing

Direct Hardware Control
In systems where the user’s program has direct access to the hardware (DOS) the table below gives the
mapping and functions that the 8001 provide. The address of each eight-bit port is calculated as shown in
the table on the following page, the card’s base address plus an offset.
Reading the Inputs
The inputs are active high. If an input is driven high (2V to 5.25 V) it will read as a logical one (1), if driven
low (0V to 0.8V) it will read as a logical zero (0).
Reading the Outputs
The value that is currently being used to drive the outputs will be returned.
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.
Writing the Outputs
The outputs are active high. Writing a one (1) corresponds to 5V while writing a zero (0) corresponds to 0V,
at the output.
Port Configuration
Each port can be configured as an input or an output by writing to its direction control bit, refer to the table
below.
Interrupts
Interrupts can be set up as shown on the following page. Port A1 bit zero is the interrupt source (pin 20).

Register Description (for direct hardware control)
Address
Mode
D7
D6
D5
D4
D3
D2
D1
D0
Base+0
R/W
PAD7
PAD6
PAD5
PAD4
PAD3
PAD2
PAD1
PAD0
Base+1
R/W
PBD7
PBD6
PBD5
PBD4
PBD3
PBD2
PBD1
PBD0
Base+2
R/W
PCD7
PCD6
PCD5
PCD4
PCD3
PCD2
PCD1
PCD0
Base+3
R/W
PDD7
PDD6
PDD5
PDD4
PDD3
PDD2
PDD1
PDD0
Base+4
R/W
{0}
{0}
{0}
{0}
DIRD
DIRC
DIRB
DIRA
Base+5
R/W
IRQEN
IRQST
{0}
{0}
{0}
{0}
IRC1
IRC0
Base+6
R Only
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+7
R Only
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Table 5-Register Description
All ports are set to input after reset or power up.
Interrupt source is Base+0 bit D0. When selecting the Interrupt Mode, always disable interrupts prior to
changing or setting states. This will help prevent inadvertent or un-expected interrupts from occurring.
When using the high and low level interrupts, a change in state of the input must occur before the interrupt
can be cleared. The device providing the input to Base +0, bit D0 must do this.
PAD0-7 = Port A (Base+0)
PBD0-7 = Port B (Base+1)
PCD0-7 = Port C (Base+2)
PDD0-7 = Port D (Base+3)
DIRA-D = Port A-D direction control (Base+4)
0 = input
1 = output
IRC0-1= Interrupt Mode select (Base+5)
IRC1 IRC0
10 Low level
11 high level
20 falling edge
1 1 RISING EDGE
IRQEN = enable interrupts (Base+5)
0 = disabled
1 = enabled (disabled after reset or power up).
IRQST = interrupt status (Base+5)
1 = interrupt pending (reading the bit clears interrupt).

Specifications
Environmental Specifications
Specification
Operating
Storage
Temperature Range
0º to 50º C (32º to 122º 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)
Physical Dimensions
Board length
4.721 inches (12.00 cm)
Board height including Goldfingers
3.300 inches (8.39 cm)
Board height excluding Goldfingers
2.975 inches (7.56 cm)
Board weight
3.2 ounces (90.71g)

Appendix A –Troubleshooting
The adapter should provide years of trouble-free service. However, in the event that device appears to not
be functioning incorrectly, the following tips can eliminate most common problems without the need to call
Technical Support.
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 SeaI/O control panel applet for card identification and configuration.
4. Identify all I/O adapters currently installed in your system. This includes your on-board serial ports,
controller cards, sound cards etc. The I/O addresses used by these adapters, as well as the IRQ (if
any) should be identified.
5. Configure your Sealevel Systems adapter so that there is no conflict with currently installed
adapters. No two adapters can occupy the same I/O address.
6. Make sure the Sealevel Systems adapter is using a unique IRQ The IRQ is typically selected via an
on-board header block. Refer to the section on Card Setup for help in choosing an I/O address and
IRQ.
7. Make sure the Sealevel Systems adapter is securely installed in a motherboard slot.
8. If you are utilizing an operating system prior to Windows 7, please contact Sealevel‘s Technical
support as directed below to receive more information regarding the utility software which will
determine if your product is functioning properly.
9. Only users running Windows 7 or newer should utilize the diagnostic tool ‘WinSSD’ installed in the
SeaCOM folder on the Start Menu during the setup process. First find the ports using the Device
Manager, then use ‘WinSSD’ to verify that the ports are functional.
10. Always use the Sealevel Systems diagnostic software when troubleshooting a problem. This will
help eliminate any software issues and identify any hardware conflicts.
If these steps do not solve your problem, please call Sealevel Systems’ Technical Support, [phone].
Our technical support is free and available from 8:00 A.M.- 5:00 P.M. Eastern Time Monday through Friday.
For email support contact supp[email protected].

Appendix B –How To Get Assistance
Please refer to Troubleshooting Guide prior to calling Technical Support.
1. Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed
please see below.
2. When calling for technical assistance, please have your user manual and current adapter
settings. If possible, please have the adapter installed in a computer ready to run diagnostics.
3. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many
common questions. This section can be found at http://www.sealevel.com/faq.asp.
4. Sealevel Systems maintains a web page on the Internet. Our home page address is
https://www.sealevel.com/. The latest software updates, and newest manuals are available
via our web site.
5. Technical support is available Monday to Friday from 8:00 a.m. to 5:00 p.m. eastern time.
Technical support can be reached at [phone].
RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED
MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL
SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER.