This document contains information about using the NI PCI-6509,
NI PXI-6509, and NI PCIe-6509 data acquisition devices with the
NI-DAQmx driver software.
NoteFor information about using the NI USB-6509 device, refer to the NI USB-6509
User Guide and Specifications document.
The NI 6509 is a 96-bit, high-drive digital input/output (DIO) device.
The NI 6509 features 96 TTL/CMOS-compatible digital I/O lines, 24 mA
high-drive output, digital filtering, programmable power-up states, change
detection, and a watchdog timer.
Where to Go for Support .........................................................................32
NI 6509 User Guide and Specifications2ni.com
Page 3
Configuration
The NI PCI/PXI/PCIe-6509 devices are fully compliant with the PCI Local
Bus Specification Revision 2.2, the PXI Hardware Specification
Revision 2.1, and the PCI Express Electromechanical Specification
Revision 1.1, respectively. The PCI/PXI/PCIe system automatically
allocates all device resources, including the base address and interrupt
level. The device base address is mapped into PCI memory space. It is
not necessary to perform configuration steps after the system powers up.
Before installing the NI 6509 device, you must install the software you plan
to use with the device. Refer to the software documentation for
configuration instructions.
After you install the software and the NI 6509 device, the device appears
under the Devices and Interfaces branch of the Measurement &
Automation Explorer (MAX) configuration tree.
If the NI 6509 does not appear in MAX, use the following troubleshooting
guidelines:
•Verify that you are using the correct version of the NI-DAQmx driver
software (version 7.1 or later for the NI PCI/PXI-6509 and version 9.2
or later for the NI PCIe-6509). To download the most recent National
Instruments drivers, visit the NI Web site at
Download Software»Drivers and Updates.
ni.com and select
•Press <F5> to refresh the MAX window, or close and reopen MAX.
•Restart the computer.
•Power off and unplug the computer or chassis, and install the device
in a different slot. Refer to the DAQ Getting Started guides for
installation instructions and safety guidelines.
•
(NI PCI-6509 only) You must install the NI PCI-6509 into a slot that
provides 3.3 V. Check that the 3.3 V LED (reference designator
DS1—located on the visible edge of the underside of the installed
device) is lit. If not, check that the PC motherboard provides 3.3 V
to the PCI bus.
NI measurement devices are packaged with the NI-DAQmx driver
software, an extensive library of functions and VIs you can call from your
application software, such as LabVIEW or LabWindows
program all the features of your NI measurement devices. NI-DAQmx
provides an application programming interface (API), which is a library of
VIs, functions, classes, attributes, and properties for creating applications
for your device. NI-DAQmx also includes a collection of programming
examples to help you get started developing an application. You can
modify example code and save it in an application. You can use examples
to develop a new application or add example code to an existing
application. Refer to the DAQ Getting Started guides for more information
about NI-DAQmx.
The NI PCI/PXI-6509 uses NI-DAQmx 7.1 or later, whereas the
NI PCIe-6509 requires NI-DAQmx 9.2 or later.
To l oca te L ab VI EW an d La bWind ows/ CV I exam pl es , op en th e
NI Example Finder:
•In LabVIEW, select Help»Find Examples.
™
/CVI™, to
•In LabWindows/CVI, select Help»NI Example Finder.
Measurement Studio, Visual Basic, and ANSI C examples are in the
following directories:
•NI-DAQmx examples for Measurement Studio-supported languages
are in the following directories:
MeasurementStudio\VCNET\Examples\NIDaq
–
–MeasurementStudio\DotNET\Examples\NIDaq
•NI-DAQmx examples for ANSI C are in the NI-DAQ\Examples\
DAQmx ANSI C Dev
For additional examples, refer to the NI Developer Zone at
directory
zone.ni.com.
NI 6509 User Guide and Specifications4ni.com
Page 5
Functional Overview
Industrial Digital
I/O Control FPGA
I/O Connector
96 DIO96 DIO
Flash
Memory
Configuration
Control
Data/Control
PCI/PXI/CompactPCI Bus
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Port 9
Port 10
Port 11
24 mA DIO
Transceivers
Data/Control
DIO Lines
Programmable
Power-Up States
Watchdog Timer
Digital Filtering
Change Detection
PCI Bus
Interface
10 MHz
Clock
Digital I/O
NI ASIC
Digital I/O
NI ASIC
DIO Lines
NI ASIC
48 DIO48 DIO
48 DIO
48 DIO
I/O Connector
PCI Express Bus
Watchdog Timer
Data/Control
Programmable
Power-Up States
Digital Filtering
Change Detection
EEPROM
100 MHz
Clock
DIO Lines
NI ASIC
Programmable
Power-Up States
Watchdog Timer
Digital Filtering
Change Detection
Data/Control
Figure 1 shows the key functional components of the NI PCI/PXI-6509.
Figure 2 shows the key functional components of the NI PCIe-6509.
This section contains important safety information that you must follow
when installing and using National Instruments DIO devices.
Do not operate the device in a manner not specified in this document.
Misuse of the DIO device can result in a hazard. You can compromise
the safety protection built into the DIO device if it is damaged in any way.
If the DIO device is damaged, return it to NI for repair.
Do not substitute parts or modify the DIO device except as described in this
document. Use the DIO device only with the chassis, modules, accessories,
and cables specified in the installation instructions. You must have all
covers and filler panels installed during operation of the DIO device.
Do not operate the DIO device in an explosive atmosphere or where there
may be flammable gases or fumes.
If you need to clean the DIO device, use a soft, nonmetallic brush. Make
sure that the DIO device is completely dry and free from contaminants
before returning it to service.
Operate the DIO device only at or below Pollution Degree 2. Pollution is
foreign matter in a solid, liquid, or gaseous state that can reduce dielectric
strength or surface resistivity. The following is a description of pollution
degrees:
•Pollution Degree 1 means no pollution or only dry, nonconductive
pollution occurs. The pollution has no influence.
•Pollution Degree 2 means that only nonconductive pollution occurs in
most cases. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
•Pollution Degree 3 means that conductive pollution occurs, or dry,
nonconductive pollution occurs that becomes conductive due to
condensation.
Yo u mu st in s u la te s ig na l c o n ne c t io ns f o r t h e ma xi mu m v o lt ag e f or w hi ch
the DIO device is rated. Do not exceed the maximum ratings for the DIO
device. Do not install wiring while the DIO device is live with electrical
signals. Do not remove or add connector blocks when power is connected
to the system. Avoid contact between your body and the connector block
signal when hot swapping modules. Remove power from signal lines
before connecting them to or disconnecting them from the DIO device.
NI 6509 User Guide and Specifications6ni.com
Page 7
Operate the DIO device at or below the measurement category1 marked
on the hardware label. Measurement circuits are subjected to working
2
voltages
and transient s t r esses (overvoltage) from t h e circuit to which they
are connected during measurement or test. Installation categories establish
standard impulse withstand voltage levels that commonly occur in
electrical distribution systems. The following is a description of installation
categories:
•Measurement Category I is for measurements performed on circuits
not directly connected to the electrical distribution system referred to
3
as MAINS
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 (for example, 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 DIO devices.
•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.
1
Measurement categories, also referred to as installation categories, are defined in electrical safety standard IEC 61010-1.
2
Wor king vo ltage is t he hi ghes t rm s value of a n AC or DC volta ge th at c an oc cur acros s an y pa rti cular ins ulati on.
3
MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may
be connected to the MAINS for measuring purposes.
This product was tested and complies with the regulatory requirements and
limits for electromagnetic compatibility (EMC) as stated in the product
specifications. These requirements and limits are designed to provide
reasonable protection against harmful interference when the product is
operated in its intended operational electromagnetic environment. There is
no guarantee that interference will not occur in a particular installation.
To minimize the potential for the product to cause interference to radio
and television reception or to experience unacceptable performance
degradation, install and use this product in strict accordance with the
instructions in the product documentation.
CautionThe following statements contain important EMC information needed before
installing and using this product:
•This product is intended for use in industrial locations. As a result, this product may
cause interference if used in residential areas. Such use must be avoided unless the user
takes special measures to reduce electromagnetic emissions to prevent interference to
the reception of radio and television broadcasts.
•This product may become more sensitive to electromagnetic disturbances in the
operational environment when test leads are attached or when connected to a test
object.
•Emissions that exceed the regulatory requirements may occur when this product is
connected to a test object.
•Changes or modifications not expressly approved by National Instruments could void
the user’s authority to operate the hardware under the local regulatory rules.
•Operate this product only with shielded cables and accessories.
NI 6509 User Guide and Specifications8ni.com
Page 9
Related Documentation
The following documents contain information that you may find helpful as
you use this user guide:
•DAQ Getting Started guides—These guides describe how to install the
NI-DAQmx driver software, the DAQ device, and how to confirm that
the device is operating properly.
•NI-DAQmx Help—This help file contains information about using
NI-DAQmx to program NI devices. NI-DAQmx is the software you
use to communicate with and control National Instruments DAQ
devices.
•Measurement & Automation Explorer Help for NI-DAQmx—This
help file contains information about configuring and testing DAQ
devices using MAX for NI-DAQmx, and information about special
considerations for operating systems.
•DAQ Assistant Help—This help file contains information about
creating and configuring channels, tasks, and scales using the
DAQ Assistant.
NoteYo u ca n d ow n l oa d th e se d oc um e nt s fr o m ni.com/manuals.
I/O Connector
CautionThis NI product must be operated with shielded cables and accessories to ensure
compliance with the Electromagnetic Compatibility (EMC) requirements defined in the
Specifications sectio n of this docum ent. Do not use unshielded cables or ac cessories unless
they are installed in a shielded enclosure with properly designed and shielded input/output
ports and connected to the NI product using a shielded cable. If unshielded cables or
accessories are not properly installed and shielded, the EMC specifications for the product
are no longer guaranteed.
The 100-pin high-density SCSI connector on the NI 6509 provides access
to 96 digital inputs and outputs. Use this connector to connect to external
devices, such as solid-state relays (SSRs) and LEDs. For easy connection
to the digital I/O connector, use the SH100-100-F shielded digital I/O cable
with the SCB-100 connector block, or use the R1005050 ribbon cable with
the CB-50 or CB-50LP connector block.
CautionDo not make connections to the digital I/O that exceed the maximum I/O
specifications. Doing so may permanently damage the NI 6509 device and the computer.
Refer to the Signal Descriptions and Specifications sections for information about the
maximum I/O specifications.
Figure 3 shows the pin assignments for the SH100-100-F cable when you
connect it to the NI 6509 device. The naming convention for each pin is
PX.Y, where X is the port (P) number, and Y is the line number.
Refer to the Signal Descriptions section for information about the signals
available on this connector.
Figure 3. SH100-100-F Connector Pinout
Page 12
R1005050 Connector
+5 V
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
GND
P3.1
P3.2
P3.4
P3.5
P3.6
P3.7
P3.0
P3.3
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6
P5.7
49 50
47 48
45 46
43 44
41 42
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
910
78
56
34
12
Positions 1 through 50
+5 V
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
P7.0
P7.1
P7.2
P7.3
P7.4
P7.5
P7.6
P7.7
P8.0
P8.1
P8.2
P8.3
P8.4
P8.5
P8.6
P8.7
GND
P9.1
P9.2
P9.4
P9.5
P9.6
P9.7
P9.0
P9.3
P10.0
P10.1
P10.2
P10.3
P10.4
P10.5
P10.6
P10.7
P11.0
P11.1
P11.2
P11.3
P11.4
P11.5
P11.6
P11.7
49 50
47 48
45 46
43 44
41 42
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
910
78
56
34
12
Positions 51 through 100
Figure 4 shows the pin assignments for the R1005050 cable when you
connect it to the NI 6509 device. The naming convention for each pin is
PX.Y, where X is the port (P) number, and Y is the line number or name.
NI 6509 User Guide and Specifications12ni.com
Refer to the Signal Descriptions section for information about the signals
available on this connector.
Figure 4. R1005050 Connector Pinout
Page 13
Signal Descriptions
PinSignal NameDescriptionMSBLSB
Table 1 lists the signals and descriptions for all signals available on the
NI 6509 device.
Table 1. NI 6509 Signal Descriptions
1, 3, 5, 7, 9, 11, 13, 15P2.<7..0>Bi-directional data lines for
port 2
2, 4, 6, 8, 10, 12, 14, 16P5.<7..0>Bi-directional data lines for
The NI 6509 device provides 96 lines of bi-directional DIO signals,
P<0..11>.<0..7>. You can use each of the DIO lines as a static digital input
(DI) or digital output (DO) line. All samples of DI lines and updates of DO
lines are software-timed.
I/O Protection
Use the following guidelines to avoid electrostatic discharge (ESD) events
and fault conditions such as overvoltage, undervoltage, and overcurrent:
•If you configure a DIO line as an output, do not connect the line to any
external signal source, ground signal, or power supply.
•If you configure a DIO line as an output, understand the current
requirements of the load. Do not exceed the output limits of the
DAQ device. NI has several signal conditioning solutions for digital
applications that require high current drive.
•If you configure a DIO line as an input, do not drive the line with
voltages outside of the normal operating range.
•Treat the DAQ device as you would treat any static sensitive device.
Always properly ground yourself and the equipment when handling
the DAQ device or connecting to it.
The NI PCIe-6509 has user-configurable pull-up and pull-down resistors.
The DIO lines on the NI PCIe-6509 are connected to an NI ASIC that
contains a weak pull-down resistor (47 k:, typical), and each DIO line is
connected to a software-selectable strong pull-up resistor (4.7 k:, typical),
as Figure 5 shows.
Figure 5. NI PCIe-6509 Digital I/O Circuitry
If you set the software to pull-down, the weak pull-down resistor in the
NI ASIC pulls the DIO line low. If you set the software to pull-up, the
strong pull-up resistor pulls the DIO line high. The pull setting takes effect
regardless of the I/O direction, but the pull setting affects only the state of
the DIO lines that are configured for input.
To us e MA X t o co nfigu re t he I/ O pul l res is tor, s el ec t t he d evice a nd cl ic k
the Properties button. Refer to the software documentation for information
about how to program the pull setting using NI-DAQmx with LabVIEW or
other NI application development environments (ADEs).
Figure 6 shows an example of signal connections for three typical
digital I/O applications. Port 0 is configured for digital output, and port 7
is configured for digital input.
Digital output applications include sending TTL signals and driving
external devices such as the LED shown in the figure. Digital input
applications include receiving TTL signals and sensing external device
states such as the state of the switch in the figure.
Protecting Inductive Loads
When inductive loads are connected to output lines, a large
counter-electromotive force may occur at switching time because of the
energy stored in the inductive load. These flyback voltages can damage
the outputs and/or the power supply.
Figure 6. NI 6509 Signal Connections
NI 6509 User Guide and Specifications16ni.com
Page 17
To l im it the se fly ba ck vol tag es at the inductive load, install a flyback diode
PX.Y
GND
Load
NI 6509
Flyback Diode for
Inductive Loads
PX.Y
GND
NI 6509
Vcc
across the inductive load. For best results, mount the flyback diode within
18 inches of the load. Figure 7 shows an example of using an external
flyback diode to protect inductive loads.
Figure 7. Limiting Flyback Voltages at the Inductive Load
Sinking and Sourcing Examples
The following sections provide examples of driving a relay with no more
than 24 mA, driving a relay with more than 24 mA, and driving a
solid-state relay (SSR).
Driving a Relay d 24 mA
Figures 8 and 9 show examples of connecting the NI 6509 to a relay that
does not require more than 24 mA of current.
Figure 8. NI 6509 Sinking Connection Example, d 24 mA
Figure 9. NI 6509 Sourcing Connection Example, d 24 mA
PX.
Y
GND
NI 6509
PX.
Y
GND
NI 6509
Vcc
PX.Y
GND
NI 6509
Vcc
Driving a Relay > 24 mA
Figures 10 and 11 are examples of connecting the NI 6509 to a relay that
requires more than 24 mA of current. These examples use an additional
transistor circuit.
Figure 10. NI 6509 Sinking Connection Example, > 24 mA
NI 6509 User Guide and Specifications18ni.com
Figure 11. NI 6509 Sourcing Connection Example, > 24 mA
Page 19
Driving an SSR
+
–
V
AC
SSR
PX.Y
GND
Load
Load
NI 6509
Figure 12 shows an example of connecting the NI 6509 to an SSR.
Figure 12. NI 6509 SSR Connection Example
Power Connections
+5 V Power Available at I/O Connector
Pins 49 and 99 supply +5 V power to the I/O connector. The I/O connector
power has a fuse for overcurrent protection. This fuse is not customer
replaceable. If the fuse is blown, return the device to NI for repair.
CautionDo not connect the +5 V power pin directly to ground or to any other voltage
source on any other device. Doing so may permanently damage the NI 6509 device and the
computer.
Disk Drive Power Connector (NI PCIe-6509 Only)
The disk drive power connector is a four-pin hard drive connector on the
NI PCIe-6509 that, when connected, increases the current the device can
supply on the +5 V terminal.
NoteThe disk drive power has a fuse for overcurrent protection. This fuse is not customer
replaceable. If the fuse is blown, the fuse LED (reference designator DS1—located on the
visible edge of the underside of the installed device) is lit. In this case, return the device to
NI for repair.
When to Use the Disk Drive Power Connector
You can install the disk drive power connector if you want to increase the
power supply on the +5 V terminal. However, it is not necessary to install
the disk drive power connector for most applications.
Refer to the Specifications section for more information about the power
requirements and power limits of the NI PCIe-6509.
Before installing the disk drive power connector, you must install and set
up the NI PCIe-6509 as described in the DAQ Getting Started guides.
Complete the following steps to install the disk drive power connector:
1.Power off and unplug the computer.
2.Remove the computer cover.
3.Attach the PC disk drive power connector to the disk drive power
connector on the NI PCIe-6509, as Figure 13 shows.
1Device Disk Drive Power Connector2PC Disk Drive Power Connector
Figure 13. Connecting to the Disk Drive Power Connector
Note
For example, consider using a disk drive power connector that is not in the same power
chain as the hard drive.
The power available on the disk drive power connectors in a computer can vary.
4.Replace the computer cover, and plug in and power on the computer.
Industrial DIO Features
The NI 6509 features digital filtering, programmable power-up states,
change detection, and a watchdog timer.
Digital Filtering
You can use the digital filtering option available on the NI 6509 to
eliminate glitches on input data. When used with change detection, digital
filtering can also reduce the number of changes to examine and process.
Yo u ca n co nfi gu re t he d ig it a l i np ut l i n es t o p as s t h ro ug h a d ig i ta l fi l te r an d
control the timing interval the filter uses. The filter blocks pulses that are
shorter than half of the specified timing interval and passes pulses that are
longer than the specified interval. Intermediate-length pulses—pulses
longer than half of the interval but less than the interval—may or may not
pass the filter.
NI 6509 User Guide and Specifications20ni.com
Page 21
Table 2 li st s t he p uls e wi dt hs th at th e NI 65 09 is c er tai n to pa ss a nd bl oc k.
External
Signal
Sampled
External
Signal
Filter
Clock
Sample Clock
Filtered
Signal
HHHHH
HLLHH
HLLHH
A
B
C
Table 2. NI 6509 Digital Filtering
Pulse Width PassedPulse Width Blocked
Filter Interval
t
interval
Low PulseHigh PulseLow PulseHigh Pulse
t
interval
t
interval
t
/2t
interval
interval
/2
Yo u c a n e na bl e d ig it al f il te r in g o n a s m an y in pu t l in es a s n ec e ss a r y f o r y o u r
application. All filtered lines share the same timing interval, which ranges
from 400 ns to 200 ms on the NI PCI/PXI-6509. The NI PCIe-6509
supports only three timing intervals: 160 ns, 10.24 Ps, and 5.12 ms.
Internally, the digital filter uses two clocks: a sample clock and a filter
clock. The filter clock is generated by a counter and has a period equal to
one half of the specified timing interval. The NI 6509 samples the input
signal on each rising edge of the sample clock, but the NI 6509 recognizes
a change in the input signal only if the input signal maintains its new state
for at least two consecutive rising edges of the filter clock. The filter clock
is programmable and allows you to control how long a pulse must last to be
recognized by the NI 6509.
Digital Filtering Example
Figure 14 shows an example of digital filtering.
does not remain steadily high from one rising edge of the filter clock to the
next. In period C, the filter passes the transition because the external signal
In periods A and B, the filter blocks the glitches because the external signal
remains steadily high. Depending on when the transition occurs, the filter
may require up to two filter clocks—one full filter interval—to pass a
Figure 14. Digital Filtering Example
Page 22
transition. The figure shows a rising (0 to 1) transition. The same filtering
applies to falling (1 to 0) transitions.
Programmable Power-Up States
You can program the DIO lines on the NI 6509 to power up at a predefined
state: input, high output, or low output. Programmable power-up states
ensure that the NI 6509 powers up in a known state.
NoteOn the NI PCIe-6509, the DIO lines can be pulled high or low. For more
information, refer to the I/O Pull-Up/Pull-Down Resistors (NI PCIe-6509 Only) section.
The typical response time of programmable power-up states is 400 ms for
the NI PCI/PXI-6509 and 500 ms for the NI PCIe-6509.
To us e MA X ( re co mm en ded ) to pr og ra m t he p ower- up st at es , sel ec t
the device and click the Properties button. Refer to the software
documentation for information about how to program the power-up states
using NI-DAQmx with LabVIEW or other NI application development
environments (ADEs).
Change Detection
NoteExcessive change detections may affect system performance. Use digital filtering to
minimize the effects of noisy input lines.
You can program the NI 6509 to send an interrupt when a change occ urs on
any input line. The NI 6509 can monitor changes on selected input lines or
on all input lines. It can monitor for rising edges (0 to 1), falling edges
(1 to 0), or both.
When an input change occurs, the NI 6509 generates an interrupt and
notifies the software. However, the NI 6509 does not report which line
changed or if the line was rising or falling. After a change, you can read the
input lines to determine the current line states. The rate of change detection
is determined by the software response time, which varies from system to
system.
An overflow bit indicates that the NI 6509 detects an additional rising or
falling edge before the software processes the previous change.
Refer to the software documentation for information about how to set up
and implement the change detection feature.
NI 6509 User Guide and Specifications22ni.com
Page 23
Change Detection Example
Table 3 shows a change detection example for six bits of one port.
Table 3. Change Detection Example
Bit
76543210
Changes to detect——
Enable rising-edge
detection
Enable falling-edge
detection
yesyesyesyesnonoyesno
yesyesyesyesnononoyes
This example assumes the following line connections:
•Bits 7, 6, 5, and 4 are connected to data lines from a four-bit TTL
output device. The NI 6509 detects any change in the input data so
you can read the new data value.
•Bit 1 is connected to a limit sensor. The NI 6509 detects rising edges
on the sensor, which correspond to over-limit conditions.
•Bit 0 is connected to a switch. The NI 6509 reacts to any switch
closure, which is represented by a falling edge. If the switch closure is
noisy, enable digital filtering for this line.
In this example, the NI 6509 reports rising edges on only bit 1, falling edges
on only bit 0, and rising and falling edges on bits 7, 6, 5, and 4. The NI 6509
reports no changes for bits 3 and 2. After receiving notification of a change,
you can read the port to determine the current values of all eight lines.
However, you cannot read the lines that are confi gured for ch a n g e d etection
until a change detection interrupt occurs.
Watchdog Timer
The watchdog timer is a software-configurable feature that sets critical
output lines to predefined safe states in the event of a software failure, a
system crash, or any other loss of communication between the application
and the NI 6509.
After you enable the watchdog timer, if the NI 6509 does not receive
a watchdog reset software command within the time specified for the
watchdog timer, the output lines enter a user-defined safe state and remain
in that state until one of the following events occurs:
•The application disarms the watchdog timer and writes new values to
the output lines.
•The NI 6509 is reset.
•The computer is restarted.
The signal indicating an expired watchdog asserts continuously until the
application disarms the watchdog timer. After the watchdog timer expires,
the NI 6509 ignores any writes until the application disarms the watchdog
timer.
NoteOn the NI PCIe-6509, ports that are set to tristate cannot enter safe states of output
when the computer enters a fault condition.
Yo u ca n s et t he wa tc hd og ti me r t im eo ut p e ri o d t o s p e ci f y t he a m ou nt o f
time that elapses before the watchdog timer expires. The counter on the
32
watchdog timer is configurable up to (2
minutes) on the NI PCI/PXI-6509 and (2
– 1) u100 ns (about seven
32
– 1) u 3 2 ns (about t wo m i n utes)
on the NI PCIe-6509 before the watchdog timer expires.
Accessories
CautionThis NI product must be operated with shielded cables and accessories to ensure
compliance with the Electromagnetic Compatibility (EMC) requirements defined in the
Specifications section of th is document. Do not use unshielded cables or accessori es unless
they are installed in a shielded enclosure with properly designed and shielded input/output
ports and connected to the NI product using a shielded cable. If unshielded cables or
accessories are not properly installed and shielded, the EMC specifications for the product
are no longer guaranteed.
NI offers the following products for use with the NI 6509.
The maximum input logic high and output logic high voltages assume a
Vcc supply voltage of 5.0 V. Given a Vcc supply voltage of 5.0 V, the
absolute maximum voltage rating for each I/O line is – 0.5 V to 5.5 V with
respect to GND.
LevelMinMax
Input voltage (Vin)0 VVcc
Input logic high voltage (VIH)2 V—
Input logic low voltage (VIL)—0.8 V
Output Signals (Vcc = 5 V)
LevelMinMax
High-level output current (IOH)—–24 mA
Low-level output current (IOL)—24 mA
Output voltage (V
Output high voltage (VOH), at –24 mA3.7 V—
Output low voltage (VOL), at 24 mA—0.55 V
The total current sinking/sourcing from one port cannot exceed 100 mA.
With a load, use the following equation to determine the power
consumption on a 5 V rail. In the equation, j is the number of channels
you are using to source current.
)0 VVcc
out
NI 6509 User Guide and Specifications26ni.com
Page 27
Digital Logic Levels (NI PCIe-6509)
Input Signals
LevelMinMax
Input voltage (Vin)0 V5 V
Positive-going threshold (VT+)—2.2 V
Negative-going threshold (VT)0.8 V—
Delta VT hysteresis (VT+ VT)0.2 V—
Input high current (IIH)
(V
=5V, resistors set to pull-up)
in
Input high current (IIH)
(V
=5V, resistors set to pull-down)
in
Input low current (IIL)
(V
=0V, resistors set to pull-up)
in
Input low current (IIL)
(V
=0V, resistors set to pull-down)
in
—260 PA
—260 PA
—–1250 PA
—20 PA
Output Signals
LevelMinMax
High-level output current (IOH)—–24 mA
Low-level output current (IOL)—24 mA
Output voltage (V
Output high voltage (VOH), at –24 mA3.4 V—
Output low voltage (VOL), at 24 mA—0.78 V
The total current sinking/sourcing from one port cannot exceed 100 mA.
Without the disk drive power connector installed, the +5 V supply and the
DIO lines share the same power source. In this case, use the following
equation to determine the current available at the +5 V terminal. In the
equation, I
With the disk drive power connector installed, the current at the +5 V
terminal is supplied by an external power source. In this case, the current at
the +5 V terminal can be up to 1 A.
Physical Characteristics
Dimensions (without connectors)
NI PCI-6509 ....................................12.4 cm × 9.7 cm
NI PXI-6509 ....................................16.0 cm × 10.0 cm
NI PCIe-6509...................................14.2 cm × 10.4 cm
Weight
is the total current sourced on all DIO lines.
DIO
= 1.2 A I
I
+5V
DIO
(4.9 in. × 3.8 in.)
(6.3 in. × 3.9 in.)
(5.6 in. × 4.1 in.)
Environmental
NI PCI-6509 ....................................70.9 g (2.5 oz)
NI PXI-6509 ....................................172.9 g (6.1 oz)
NI PCIe-6509...................................95.7 g (3.4 oz)
The NI 6509 device is intended for indoor use only.
Operating Environment
Ambient temperature range ....................0 °C to 55 °C
(tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2)
Relative humidity range..........................10% to 90%, noncondensing
(tested in accordance with
IEC-60068-2-56)
Altitude ...................................................2,000 m (at 25 °C ambient
temperature)
NI 6509 User Guide and Specifications28ni.com
Page 29
Storage Environment
Ambient temperature range.................... –20 °C to 70 °C
(tested in accordance with
IEC-60068-2-1 and
IEC-60068-2-2)
Relative humidity range ......................... 5% to 95%, noncondensing
(tested in accordance with
IEC-60068-2-56)
Shock and Vibration (NI PXI-6509 Only)
Operational shock .................................. 30 g peak, half-sine, 11 ms pulse
(tested in accordance with
IEC-60068-2-27; test profile
developed in accordance with
MIL-PRF-28800F)
Random vibration
5 Hz to 500 Hz, 0.3 grms............... Operating
Safety
5 Hz to 500 Hz, 2.4 grms............... Nonoperating
Random vibration is tested in accordance with IEC-60068-2-64. The
nonoperating test profile exceeds the requirements of MIL-PRF-28800F,
Class 3. Random vibration is tested in accordance with IEC-60068-2-64.
The nonoperating test profile exceeds the requirements of
MIL-PRF-28800F, Class 3.
This product meets the requirements of the following standards of safety
for electrical equipment for measurement, control, and laboratory use:
•IEC 61010-1, EN 61010-1
•UL 61010-1, CSA 61010-1
NoteFor UL and other safety certifications, refer to the product label or the Online
To obtain product certifications and 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.
NI 6509 User Guide and Specifications30ni.com
Page 31
Environmental Management
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(RoHS)
DŽ
݇Ѣ
National Instruments
Ё
RoHS
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ni.com/environment/rohs_china
DŽ
(For information about China RoHS compliance, go to
ni.com/environment/rohs_china
.)
NI is committed to designing and manufacturing products in an
environmentally responsible manner. NI recognizes that eliminating
certain hazardous substances from our products is beneficial to the
environment and to NI customers.
For additional environmental information, refer to the NI and the Environment Web page at
environmental regulations and directives with which NI complies, as well
as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU CustomersAt the end of the product life cycle, all products must be sent to a WEEE
recycling center. For more information about WEEE recycling centers, National
Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on
Waste E lect ric a l a n d E l ect r oni c Equ ipme n t, visi t
The National Instruments Web site is your complete resource for technical
support. At
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
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the DoC for your product by visiting
product supports calibration, you can obtain the calibration certificate for
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