NI PCIe-8255R Quick Start Guide
The NI PCIe-8255R is an IEEE 1394a1 and IEEE 1394b interface device
for PCI Express (PCIe) with reconfigurable I/O (RIO). This document
explains how to install and configure the NI 8255R.
What You Need to Get Started
You need the following items to set up and use the NI 8255R:
❑ NI Vision Acquisition Software 8.2 or later
❑ NI Vision Acquisition Software Release Notes
❑ Computer running Windows 2000/XP with at least one PCIe slot
❑ IEEE 1394 camera
❑ 9-pin IEEE 1394 cable for interfacing to IEEE 1394b cameras
❑ 6-pin to 9-pin cable or 6-pin to 9-pin adapter for interfacing to
IEEE 1394a cameras
❑ External power supply to support powering isolated outputs
❑ Optional software packages and documentation:
–
–
–
–
–
NI Vision Development Module
NI Vision Builder for Automated Inspection
LabVIEW
LabVIEW FPGA Module
LabWindows™/CVI™
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To connect an IEEE 1394a camera to the NI 8255R, you will need a 6-pin to 9-pin cable or a 6-pin to 9-pin adapter.
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If the device is rated for use with hazardous voltages (>30 Vrms, 42.4 Vpk,
or 60 Vdc), it may require a safety earth-ground connection wire. Refer to
the device specifications for maximum voltage ratings.
Because of the danger of introducing additional hazards, do not install
unauthorized parts or modify the device. Use the device only with the
chassis, modules, accessories, and cables specified in the installation
instructions. All covers and filler panels must be installed while operating
the device.
Do not operate the device in an explosive atmosphere or where flammable
gases or fumes may be present. Operate the device only at or below the
pollution degree stated in the specifications. Pollution consists of any
foreign matter—solid, liquid, or gas—that may reduce dielectric strength
or surface resistivity. The following is a description of pollution degrees.
•
Pollution Degree 1—No pollution or only dry, nonconductive
pollution occurs. The pollution has no effect.
•
Pollution Degree 2—Normally only nonconductive pollution occurs.
Occasionally, nonconductive pollution becomes conductive because of
condensation.
•
Pollution Degree 3—Conductive pollution or dry, nonconductive
pollution occurs. Nonconductive pollution becomes conductive
because of condensation.
Clean the device and accessories by brushing off light dust with a soft,
nonmetallic brush. Remove other contaminants with a stiff, nonmetallic
brush. The unit must be completely dry and free from contaminants before
returning it to service.
You must insulate signal connections for the maximum voltage for which
the device is rated. Do not exceed the maximum ratings for the device.
Remove power from signal lines before connection to or disconnection
from the device.
Caution National Instruments measurement products may be classified as either
Measurement Category I or II. Operate products at or below the Measurement Category
level specified in the hardware specifications.
Measurement Category1: Measurement circuits are subjected to working
voltages2 and transient stresses (overvoltage) from the circuit to which they
are connected during measurement or test. Measurement Category
establishes standardized impulse withstand voltage levels that commonly
1
2
Measurement Categories as defined in electrical safety standard IEC 61010-1.
Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.
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occur in electrical distribution systems. The following is a description of
Measurement (Installation1) Categories:
•
Measurement Category I is for measurements performed on circuits
not directly connected to the electrical distribution system referred to
as MAINS2 voltage. This category is for measurements of voltages
from specially protected secondary circuits. Such voltage
measurements include signal levels, special equipment, limited-energy
parts of equipment, circuits powered by regulated low-voltage sources,
and electronics.
•
•
Measurement Category II is for measurements performed on circuits
directly connected to the electrical distribution system. This category
refers to local-level electrical distribution, such as that provided by a
standard wall outlet (e.g., 115 V for U.S. or 230 V for Europe).
Examples of Measurement Category II are measurements performed
on household appliances, portable tools, and similar products.
Measurement Category III is for measurements performed in the
building installation at the distribution level. This category refers to
measurements on hard-wired equipment such as equipment in fixed
installations, distribution boards, and circuit breakers. Other examples
are wiring, including cables, bus-bars, junction boxes, switches,
socket-outlets in the fixed installation, and stationary motors with
permanent connections to fixed installations.
•
Measurement Category IV is for measurements performed at the
primary electrical supply installation (<1,000 V). Examples include
electricity meters and measurements on primary overcurrent
protection devices and on ripple control units.
Unpacking
The NI 8255R ships in an antistatic package to prevent electrostatic
discharge from damaging device components. To avoid such damage in
handling the device, take the following precautions:
•
Ground yourself via a grounding strap or by holding a grounded object,
such as the computer chassis.
•
Touch the antistatic package to a metal part of the computer chassis
before removing the device from the package.
Caution Never touch the exposed pins of connectors.
1
2
Measurement Category is also referred to as Installation Category.
MAINS is defined as the (hazardous live) electrical supply system to which equipment is designed to be connected for the
purpose of powering the equipment. Suitably rated measuring circuits may be connected to the MAINS for measuring
purposes.
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Remove the device from the package and inspect it for loose components
or any other signs of damage. Notify National Instruments if the device
appears damaged in any way. Do not install a damaged device in the
computer.
Store the NI 8255R in the antistatic package when not in use.
Installation
The following instructions are for general installation. Refer to the
documentation provided by your computer manufacturer for specific
instructions and warnings about installing hardware in the computer. Refer
to the Specifications section for a list of the typical power requirements for
the NI 8255R.
1. Install NI Vision Acquisition Software before installing the NI 8255R
device. Refer to the NI Vision Acquisition Software Release Notes for
installation and configuration instructions.
2. Power off and unplug the computer.
Caution To protect yourself and the computer from electrical hazards, the computer must
remain unplugged until the installation is complete.
3. Remove the computer cover to expose the expansion slots.
Caution Installing a PCIe device into a PCI, PCI-X, AGP, or any non-PCIe slot can
between connector types, do not install the device. Refer to the documentation provided by
your computer manufacturer to determine the correct slot in which to install the NI 8255R.
4. Choose an unused x1 or larger PCIe slot, and remove the
corresponding expansion slot cover on the back panel of the computer.
Figure 1 shows the different types of expansion slots available on most
computers.
Note The NI 8255R is intended for a x1 PCIe slot. The NI 8255R will fit into, and can be
used in a x4, x8, or x16 PCIe slot.
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1
2
3
4
1
2
PCI 32-bit Connector
PCI 64-bit and/or PCI-X Connector
3
4
PCIe x1 Connector
PCIe x16 Connector
Figure 1. PC Expansion Slots
5. Touch a metal part on the computer case to discharge any static
electricity on your clothes or body before handling the NI 8255R.
Static electricity can damage the device.
6. Remove the NI 8255R from the antistatic package and gently rock the
NI 8255R into the slot. The connection may be tight, but do not force
the device into place.
Note Check that the bracket of the NI 8255R lines up with the hole in the back panel rail
of the computer chassis.
7. Unless your computer secures expansion devices in a different manner,
screw the mounting bracket of the device to the back panel rail of the
computer.
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8. To provide power to your camera, connect an unused power connector
from the ATX power supply on your computer to the camera power
ATX connector on your NI 8255R.
9. Replace the computer cover.
10. Connect the IEEE 1394 cable to your camera. Refer to your camera
manufacturer documentation for specific instructions about how to
connect the IEEE 1394 cable to your camera.
11. Connect the IEEE 1394 cable to an IEEE 1394 connector on the
NI 8255R front panel. Refer to Figure 2 for the location of the
IEEE 1394b bilingual connectors on the NI 8255R. If you are using an
IEEE 1394a cable, an IEEE 1394a to IEEE 1394b adapter is required.
Alternatively, you can use an IEEE 1394a to IEEE 1394b cable.
12. Plug in and power on the computer.
The NI 8255R is now installed and your camera is connected.
Refer to Figure 2 for information about placement of the connectors on the
NI 8255R.
FOR PATENTS: NI.COM/PATENTS
NI PCIe-8255R
1
2
3
5
4
1
2
3
IEEE 1394b Bilingual Connector
ISO/ATX Power Status LEDs
IEEE 1394b Bilingual Connector
4
5
44-Pin D-SUB Connector
Camera Power ATX Connector
Figure 2. NI 8255R Connectors
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Wiring Isolated Output Power to the NI 8255R
Complete the following steps to connect power for the isolated outputs to
the NI 8255R.
Caution Do not connect the NI 8255R isolated power to a source less than 5 VDC or
greater than 30 VDC. Doing so could damage the NI 8255R device.
1. Complete this step if you are using the NI desktop power supply
(part number 778794-01). If you are using a power supply other than
the NI desktop power supply skip this step and proceed to step 2.
a. Disconnect the 4-position power connector from the power
supply, as shown in Figure 3.
1
4
2
3
1
2
4-Position Power Connector
V Position
3
4
C Position
Power Supply Wire
Figure 3. Removing the 4-Position Power Connector from the Power Supply
b. Depending on your connection method, reconnect the Viso and
C
iso wires to one of the following options:
•
Viso and Ciso on the 44-pin D-SUB
•
V
V
iso and Ciso on the DIN rail terminal block
•
iso and Ciso on the NI Vision I/O Terminal Block and
Prototyping Accessory
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Refer to Table 1 for a summary of the isolated power supply
connections.
.
Table 1. Isolated Power Supply Connection Options
Connection Method
Custom cable
Viso
10, 25
Ciso
14, 26, 29, 33, 36, 39, 42
12, 16, 18, 28, 32, 34
Ciso terminal
44-pin D-SUB to 37-pin terminal block
17, 33
44-pin D-SUB to 37-pin NI Vision I/O
Terminal Block
Viso terminal
2. Complete this step if you are using a power supply other than the NI
desktop power supply. If you are using the NI desktop power supply,
skip this step and proceed to step 3.
a. Wire the voltage output and the common-mode (ground) output of
•
•
•
V
V
V
iso and Ciso on the 37-pin terminal block
iso and Ciso on the 44-pin D-SUB
iso and Ciso on the NI Vision I/O Terminal Block and
Prototyping Accessory
Refer to Table 1 for a summary of the isolated power supply
connections.
3. (Optional) To suppress electromagnetic interference, install a ferrite on
the power supply cable as close to the connection to the NI 8255R as
possible. Wrap the power supply cable around the ferrite two times, as
shown in Figures 4 and 5.
2
1
1
Power Supply Output Cable
2
Ferrite
Figure 4. Installing a Ferrite Connector on the Power Supply Cable
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2
1
1
Power Supply Output Cable
2
Ferrite
Figure 5. Closed Ferrite on the Power Supply Cable
4. Plug the power supply cord into an outlet.
The orange LED on the NI 8255R front panel will illuminate when the
computer is on and an isolated power supply is properly connected.
Configuring the NI 8255R
Caution Updating your computer to Microsoft Windows XP Service Pack 2 may decrease
the performance of your IEEE 1394 devices. Refer to the NI KnowledgeBase article
3J0A446W or Microsoft Knowledge Base article 885222 for more information.
After you have installed the NI 8255R and powered on your computer,
Windows will recognize the device and assign resources to it. Use
Measurement & Automation Explorer (MAX), the National Instruments
configuration utility, to configure the IEEE 1394 camera connected to the
NI 8255R for acquisition.
Note You must install NI Vision Acquisition Software 8.2 or later before configuring your
camera in MAX. Refer to the NI Vision Acquisition Release Notes for information about
configuring your camera.
Related Documentation
The following documents contain additional information about the
NI 8255R:
•
NI Vision Acquisition Software Release Notes—This document
contains information about how to install the driver software.
•
LabVIEW Help—This document contains reference information for
the NI-IMAQ I/O shutdown states VIs, terminal references for the
configurable I/O module on the NI-IMAQ I/O device, and parameter
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references for the parameters you can set for the NI-IMAQ I/O device
in the Read/Write control. To locate the information, search for
"NI-IMAQ I/O"in LabVIEW Help.
Specifications
These specifications are typical at 25 °C, unless otherwise stated.
Power Requirements
IEEE 1394 bus power1 ........................... 18 W, maximum
(shared by both ports)
Isolated supply2 ...................................... 5 VDC to 30 VDC
Camera interface3................................... IEEE 1394b, compatible with
IEEE 1394a cameras
TTL Inputs and Outputs
Digital logic levels
Level
Minimum
0 V
Maximum
0.5 V
5 V
Input low voltage (VIL)
Input high voltage (VIH)
2.2 V
—
Output low voltage (VOL), at 5 mA
Output high voltage (VOH), at 5 mA
0.4 V
—
2.4 V
TTL Inputs
Number of channels ............................... 2
Maximum pulse rate............................... 2 MHz
Minimum pulse detected........................ 500 ns
Power-on state........................................ Input (high-impedance)
61.9 kΩ pull-up to 5V
1
The bus power specification assumes that power is provided to the NI 8255R device from the host computer power supply via
the ATX power connector. If power is not supplied through the ATX power connector, camera power is supplied by the PCIe
bus and should be limited to 3 W, shared by both ports.
2
3
Do not draw more than 100 mA from 30 V isolated outputs. Do not draw more than 50 mA from 5 V isolated outputs.
To connect an IEEE 1394a camera to the NI 8255R, you will need a 6-pin to 9-pin cable or a 6-pin to 9-pin adapter.
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TTL Outputs
Number of channels................................10
Output voltage range ..............................0 V to 5 V
Maximum pulse rate ...............................2 MHz
Optically Isolated Inputs and Outputs
Isolated (Current Sinking) Inputs
Number of channels................................13
Input voltage range .................................0 V to 30 V
Input ON voltage.............................3.5 V to 30 V
Input OFF voltage............................0 V to 2 V
Turn-on current.......................................7.1 mA, typical
14 mA, maximum
Maximum pulse rate ...............................100 kHz
Minimum pulse detected ........................10 μs
Reverse polarity protection.....................Yes, –30 V
Isolated (Current Sourcing) Outputs
Number of channels................................4
On-state voltage range............................5 V to 30 V, maximum
Maximum on-state voltage
drop from V.....................................1.2 V at 100 mA
Output current
5 V isopower....................................50 mA, maximum
24 V isopower..................................100 mA, maximum
30 V isopower..................................100 mA, maximum
Maximum pulse rate ...............................10 kHz (maximum load
resistance 100 kΩ)
Minimum pulse generated ......................100 μs
Reverse polarity protection.....................Yes
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IEEE 1394 Interface
Number of ports ..................................... 2
Speed...................................................... 100, 200, 400, or 800 Mbps
PCI Express Interface
PCI Express compliance ........................ Version 1.0a
Native link width.................................... x1
Up-plugging link width availability....... x4, x8, x16
Physical Characteristics
Dimensions............................................. 11.2 cm × 16.8 cm
(4.4 in. × 6.6 in.)
Weight.................................................... 130 g (4.5 oz)
Environment
The NI 8255R device is intended for indoor use only.
Operating temperature............................ 0 °C to 55 °C
Storage temperature ............................... –20 °C to 70 °C
Relative humidity................................... 5% to 90%, noncondensing
Pollution Degree .................................... 2
Caution Do not use the NI 8255R for connection to signals within Measurement
Categories II, III, or IV.
Measurement Category .......................... I
Approved at altitudes up to 2,000 m.
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Safety
The NI 8255R is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control, and
laboratory use:
•
•
EN 61010-1, IEC 61010-1
UL 61010-1, CAN/CSA-C22.2 No. 61010-1
Note For UL and other safety considerations, refer to the product label, or visit
ni.com/certification, search by model number or product line, and click the
appropriate link in the Certification column.
Electromagnetic Compatibility
The NI 8255R is designed to meet the requirements of the following
standards of EMC for electrical equipment for measurement, control, and
laboratory use:
•
•
•
EN 61326 EMC requirements; Minimum Immunity
EN 55011 Emissions; Group 1, Class A
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A
Note For EMC compliance, operate this device with shielded cabling.
CE Compliance
The NI 8255R meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
•
•
73/23/EEC; Low-Voltage Directive (safety)
89/336/EEC; Electromagnetic Compatibility Directive (EMC)
Note Refer to the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, visit ni.com/
certification, search by model number or product line, and click the appropriate link
in the Certification column.
Note The NI 8255R may experience temporary data interruption if exposed to
electrostatic discharge (ESD).
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling
center. For more information about WEEE recycling centers and National Instruments
WEEE initiatives, visit ni.com/environment/weee.htm.
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Where to Go for Support
The National Instruments Web site is your complete resource for technical
support. At ni.com/supportyou have access to everything from
troubleshooting and application development self-help resources to email
and phone assistance from NI Application Engineers.
A Declaration of Conformity (DoC) is our claim of compliance with the
Council of the European Communities using the manufacturer’s
declaration of conformity. This system affords the user protection for
electronic compatibility (EMC) and product safety. You can obtain the DoC
for your product by visiting ni.com/certification. If your product
supports calibration, you can obtain the calibration certificate for your
product at ni.com/calibration.
National Instruments corporate headquarters is located at
11500 North Mopac Expressway, Austin, Texas, 78759-3504.
National Instruments also has offices located around the world to help
address your support needs. For telephone support in the United States,
create your service request at ni.com/supportand follow the calling
instructions or dial 512 795 8248. For telephone support outside the United
States, contact your local branch office:
Australia 1800 300 800, Austria 43 0 662 45 79 90 0,
Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599,
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Malaysia 1800 887710, Mexico 01 800 010 0793,
Netherlands 31 0 348 433 466, New Zealand 0800 553 322,
Norway 47 0 66 90 76 60, Poland 48 22 3390150,
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Taiwan 886 02 2377 2222, Thailand 662 278 6777,
United Kingdom 44 0 1635 523545
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Refer to the Terms of Use section on ni.com/legalfor more information about National
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