USER GUIDE AND SPECIFICATIONS
NI USB-6509
This document contains information about using the National Instruments
USB-6509 data acquisition (DAQ) device with NI-DAQmx 8.7 and later.
The NI USB-6509 is a bus-powered 96-channel, digital input/output (I/O)
device. The NI USB-6509 features 96 TTL/CMOS-compatible digital I/O
output programmable power-up states. The NI USB-6509 also features an
Hardware Overview ................................................................................ 6
I/O Protection................................................................................... 12
I/O State at Power-On/Power-Off/Suspend..................................... 13
I/O Pull-Up/Pull-Down Resistor...................................................... 13
High DIO State ......................................................................... 13
Low DIO State.......................................................................... 14
Increasing Current Drive on NI USB-6509 Devices ....................... 15
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Installing the Hardware
The NI-DAQmx for USB Devices Getting Started Guide contains
non-software-specific information about how to install USB devices.
USB Cable Strain Relief
The two strain relief options for your USB cable are as follows:
•
of the two grooves on the underside of the NI USB-6509. Choose the
USB cable groove that matches your USB cable size, as shown in
Figure 1.
•
Zip Tie Method—Thread a zip tie through the zip tie bar on the
underside of the NI USB-6509 and tighten around the USB cable,
as shown in Figure 1.
4
3
3
2
1
5
1 USB Cable Strain Relief Groove (Large)
2 USB Cable Strain Relief Groove (Small)
3 USB Cable
4 Zip Tie
5 Zip Tie Bar
Figure 1. USB Cable Strain Relief Options
Mounting the NI USB-6509
You can use the NI USB-6509 on a desktop or mount it to a standard DIN
rail or a panel.
Desktop Use
You can use the NI USB-6509 on a desktop. The NI USB-6509 has grooves
on the underside that allow it to be stacked on top of other NI USB-6509
devices.
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For secure desktop use, you can adhere the supplied rubber non-skid feet to
the underside of the device, as shown in Figure 2.
Note Do not apply the rubber feet if you are panel mounting the NI USB-6509 or stacking
multiple NI USB-6509 devices.
Figure 2. Applying Rubber Feet to the NI USB-6509
DIN Rail Mounting
The DIN rail mounting kit (part number 779689-01, not included in your
NI USB-6509 kit) is an accessory you can use to mount the NI USB-6509
to a standard DIN rail.
Note Apply strain relief, as described in the USB Cable Strain Relief section, before
mounting the NI USB-6509 to a DIN rail.
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Panel Mounting
To mount the NI USB-6509 to a board or panel, complete the following
steps while referring to Figure 3.
Figure 3. Mounting the NI USB-6509 on a Panel
Notes Do not apply the rubber feet to the NI USB-6509 when panel mounting the device.
Apply strain relief, as described in the USB Cable Strain Relief section, before panel
mounting the NI USB-6509.
1. Go to ni.com/infoand enter the info code rd3233to download and
print the panel mounting template PDF.
2. Using the template, mark the bottom point and top point on the panel.
The points will be 162 mm (6.375 in.) from each other.
3. Remove the USB cable from the connector on the NI USB-6509.
4. Screw a #8 or M4 screw into the bottom point on the panel.
5. Set the NI USB-6509 on the screw by fitting it into the bottom screw
notch on the underside of the NI USB-6509.
6. Screw a #8 or M4 screw through the NI USB-6509 top screw hole into
the panel.
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Hardware Overview
Figure 4 shows the key functional components of the NI USB-6509.
+5 V
Fuse and
Filter
24 mA DIO
Tranceivers
12 VDC Input
External Power
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Port 9
Port 10
Port 11
12 V to 5 V
Regulation
VBUS Power
VBUS Current
Sense
I/O
Protection
96 DIO
96 DIO
Industrial Digital
I/O Control FPGA
Programmable
Power-Up States
USB
Interface
USB
Port
Watchdog Timer
96 DIO
Data/Control
USB Data
Digital
Filtering
Change
Detection
Figure 4. NI USB-6509 Block Diagram
Figure 5 shows the back panel of the NI USB-6509.
2
3
I/O LINE PULL
4
1
HIGH
LOW
–
+
12VDC
, 1A
1
2
I/O Line Pull Switch
LED
3
4
Recessed USB Port
DC Power Jack
Figure 5. NI USB-6509 Back Panel
Refer to the Safety Guidelines section of this document for important safety
information.
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Programming Devices in Software
National Instruments measurement devices for USB are packaged with
NI-DAQ driver software, an extensive library of functions and VIs you
can call from your application software, such as LabVIEW or
LabWindows™/CVI™, to program all the features of your NI measurement
devices. Driver software has an application programming interface (API),
which is a library of VIs, functions, classes, attributes, and properties for
creating applications for your device.
NI-DAQ 8.x includes NI-DAQmx, which has its own API, hardware
configuration, and software configuration. Refer to the NI-DAQmx for USB
Getting Started Guide for more information.
NI-DAQmx 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.
To locate LabVIEW and LabWindows/CVI examples, open the National
Instruments Example Finder:
•
•
In LabVIEW, select Help»Find Examples.
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 Devdirectory
For additional examples, refer to zone.ni.com.
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Related Documentation
The following documents contain information that you may find helpful as
you use this user guide:
•
NI-DAQmx for USB Getting Started Guide—This guide describes how
to install the NI-DAQmx 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 National Instruments devices. NI-DAQmx
is the software you use to communicate with and control NI DAQ
devices.
•
•
Measurement & Automation Explorer Help for NI-DAQmx—This
help file contains information about configuring and testing DAQ
devices using Measurement & Automation Explorer (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.
I/O Connector
The 100-pin high-density SCSI connector on the NI USB-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 National Instruments
or use the R1005050 ribbon cable with the CB-50 or CB-50LP connector
block.
Caution Do not make connections to the digital I/O that exceed the maximum I/O
specifications. Doing so may permanently damage the NI USB-6509 device and the
computer. Refer to the Signal Descriptions and Specifications sections for information
about maximum input ratings.
Pin Assignments
SH100-100-F Pin Assignments
Figure 6 shows the pin assignments for the NI USB-6509 using the
SH100-100-F cable. The naming convention for each pin is PX.Y, where X
is the port (P) number, and Y is the line number or name.
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P2.7
P5.7
P2.6
P5.6
P2.5
P5.5
P2.4
P5.4
P2.3
P5.3
P2.2
P5.2
P2.1
P5.1
P2.0
P5.0
P1.7
P4.7
P1.6
P4.6
P1.5
P4.5
P1.4
P4.4
P1.3
P4.3
P1.2
P4.2
P1.1
P4.1
P1.0
P4.0
P0.7
P3.7
P0.6
P3.6
P0.5
P3.5
P0.4
P3.4
P0.3
P3.3
P0.2
P3.2
P0.1
P3.1
P0.0
P3.0
+5 V
GND
1
2
3
4
5
6
7
8
9
51
52
53
54
55
56
57
58
59
P8.7
P11.7
P8.6
P11.6
P8.5
P11.5
P8.4
P11.4
P8.3
P11.3
P8.2
P11.2
P8.1
P11.1
P8.0
P11.0
P7.7
P10.7
P7.6
P10.6
P7.5
P10.5
P7.4
P10.4
P7.3
P10.3
P7.2
P10.2
P7.1
P10.1
P7.0
P10.0
P6.7
P9.7
P6.6
P9.6
P6.5
P9.5
P6.4
P9.4
P6.3
P9.3
P6.2
P9.2
P6.1
P9.1
P6.0
P9.0
+5 V
GND
10 60
11 61
12 62
13 63
14 64
15 65
16 66
17 67
18 68
19 69
20 70
21 71
22 72
23 73
24 74
25 75
26 76
27 77
28 78
29 79
30 80
31 81
32 82
33 83
34 84
35 85
36 86
37 87
38 88
39 89
40 90
41 91
42 92
43 93
44 94
45 95
46 96
47 97
48 98
49 99
50 100
Figure 6. Pin Assignments for the NI USB-6509 using the SH100-100-F
Refer to the Signal Descriptions section for information about the signals
available on this connector.
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R1005050 Pin Assignments
Figure 6 shows the pin assignments for the NI USB-6509 using the
R1005050 cable. The naming convention for each pin is PX.Y, where X is
the port (P) number, and Y is the line number or name.
Positions 1 through 50
Positions 51 through 100
1
3
5
7
9
2
4
1
3
5
7
9
2
4
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
+5 V
P8.7
P8.6
P8.5
P8.4
P8.3
P8.2
P8.1
P8.0
P7.7
P7.6
P7.5
P7.4
P7.3
P7.2
P7.1
P7.0
P6.7
P6.6
P6.5
P6.4
P6.3
P6.2
P6.0
+5 V
P5.7
P5.6
P5.5
P5.4
P5.3
P5.2
P5.1
P5.0
P4.7
P4.6
P4.5
P4.4
P4.3
P4.2
P4.1
P4.0
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.0
GND
P11.7
P11.6
P11.5
P11.4
P11.3
P11.2
P11.1
P11.0
P10.7
P10.6
P10.5
P10.4
P10.3
P10.2
P10.1
P10.0
P9.7
6
6
8
8
10
10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
P9.6
P9.5
P9.4
P9.3
P9.2
P9.1
P9.0
GND
Figure 7. Pin Assignments for the NI USB-6509 using the R1005050
Refer to the Signal Descriptions section for information about the signals
available on this connector.
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Signal Descriptions
Table 1 lists the signals and descriptions for all signals available on the
NI USB-6509 device.
Table 1. NI USB-6509 Signal Descriptions
Pin
Signal Name
Description
MSB
P2.7
LSB
P2.0
1, 3, 5, 7, 9, 11, 13, 15
P2.<7..0>
Bi-directional data lines for
port 2
2, 4, 6, 8, 10, 12, 14, 16 P5.<7..0>
Bi-directional data lines for
port 5
P5.7
P1.7
P4.7
P0.7
P3.7
P5.0
P1.0
P4.0
P0.0
P3.0
17, 19, 21, 23, 25, 27,
29, 31
P1.<7..0>
P4.<7..0>
P0.<7..0>
P3.<7..0>
+5 V supply
GND
Bi-directional data lines for
port 1
18, 20, 22, 24, 26, 28,
30, 32
Bi-directional data lines for
port 4
33, 35, 37, 39, 41, 43,
45, 47
Bi-directional data lines for
port 0
34, 36, 38, 40, 42, 44,
46, 48
Bi-directional data lines for
port 3
49, 99
+5 Volts; provide +5 V power
source
—
—
50, 100
Ground; connected to the
computer ground signal
—
—
51, 53, 55, 57, 59, 61,
63, 65
P8.<7..0>
P11.<7..0>
P7.<7..0>
P10.<7..0>
P6.<7..0>
P9.<7..0>
Bi-directional data lines for
port 8
P8.7
P8.0
52, 54, 56, 58, 60, 62,
64, 66
Bi-directional data lines for
port 11
P11.7
P7.7
P11.0
P7.0
67, 69, 71, 73, 75, 77,
79, 81
Bi-directional data lines for
port 7
68, 70, 72, 74, 76, 78,
80, 82
Bi-directional data lines for
port 10
P10.7
P6.7
P10.0
P6.0
83, 85, 87, 89, 91, 93,
95, 97
Bi-directional data lines for
port 6
84, 86, 88, 90, 92, 94,
96, 98
Bi-directional data lines for
port 9
P9.7
P9.0
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Digital I/O
Static DIO on NI USB-6509 Devices
You can use each of the NI USB-6509 DIO lines as a static digital
input (DI) or digital output (DO) line. You can use static DIO lines to
monitor or control digital signals. Each DIO port can be configured as a
DI or DO port.
All samples of static DI lines and updates of DO lines are software-timed.
P<0..11>.<0..7>. You can configure the direction as input or output on a
per-port basis. Each I/O line has a 100 kΩ I/O pull resistor. For more
information on the I/O pull resistor, refer to the I/O Pull-Up/Pull-Down
Resistor section.
Figure 8 shows the circuitry of one DIO line.
+5 V
GND
Transceiver
100 kΩ
PX.Y
Figure 8. NI USB-6509 Digital I/O Circuitry
The voltage input and output levels and the current drive levels of the DIO
lines are listed in the Specifications section.
I/O Protection
You should avoid ESD events and overvoltage, undervoltage, and
overcurrent fault conditions by following these guidelines.
•
If you configure a DIO line as an output, do not connect it 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 connected to these signals. Do not exceed the
specified current output limits of the DAQ device. NI has several signal
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conditioning solutions for digital applications requiring high current
drive.
•
•
If you configure a DIO line as an input, do not drive the line with
voltages outside of its 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.
I/O State at Power-On/Power-Off/Suspend
After the device is powered on, the default state of all I/O lines is input.
Using the I/O line pull switch located on the back panel, you can select to
pull all I/O lines high or low. The pull-up or pull-down resistor provides a
weak pull-high or pull-low logic level, respectively, on every I/O line. The
selected I/O line pull setting takes effect regardless of the I/O direction. For
You can also configure the power-up state in software using the
programmable power-up state feature. Each individual I/O line can be
independently configured for high-impedance input, high output, or low
output after power-up. For more information, refer to the Programmable
Power-Up States section.
When the device is powered off or in suspend state, all I/O lines are
powered off.
I/O Pull-Up/Pull-Down Resistor
The NI USB-6509 facilitates user-configurable pull-up or pull-down tasks.
Each DIO channel is connected to a 100 kΩ resistor and can be pulled high
or low using the back-panel switch, shown in Figure 5. Using this switch
pulls all 96 DIO lines high when set to HIGH or low when set to LOW.
However, if all lines are high, you might want to pull some lines low. To
do this properly, you must understand the nature of the drive current on
those lines and adhere to TTL-logic levels.
High DIO State
If you select the pulled-high mode, each DIO line is pulled to Vcc (+5 V)
with a 100 kΩ resistor. To pull a specific line low, connect a pull-down
resistor (RL) whose value gives you a maximum of 0.8 V between the line
and ground. Use the largest possible resistor so that you do not use more
current than necessary to perform the pull-down task. Also, make sure the
resistor value is not so large that leakage current from the DIO line drives
the voltage at the resistor above a TTL low level of 0.8 V.
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NI USB-6509
+5 V
Transceiver
100 kΩ
Digital I/O Line
RL
GND
Figure 9. DIO Channel Configured for High DIO State with External Load
Example:
At power up, the device is configured for input and, by default, all DIO
lines are high. To pull one channel low, complete the following steps:
1. Install a load (RL). Remember that the smaller the resistance, the
greater the current consumption and the lower the voltage (V).
2. Using the following formula, calculate the largest possible load to
maintain a logic low level of 0.8 V and supply the maximum driving
current (I).
V = I * RL ⇒ RL = V / I
where:
V= 0.8 V is the voltage across RL
I = 91 μA is the maximum leakage current from the device at low
input
therefore:
RL = 8.8 kΩ is the 0.8 V / 91 μA
This resistor value, 8.8 kΩ, provides a maximum of 0.8 V on the DIO line.
You can substitute smaller resistor values, but they draw more current,
leaving less drive current for other circuitry connected to this line.
Low DIO State
If you select pulled-low mode, each DIO line is pulled to GND (0 V) using
a 100 kΩ resistor. If you want to pull a specific line high, connect a pull-up
resistor that gives you a minimum of 2 V. Use the largest possible
resistance value so that you do not use more current than necessary to
perform the pull-up task.
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Also, make sure the pull-up resistor value is not so large that leakage
current from the DIO line brings the voltage at the resistor below a
TTL-high level of 2 V.
NI USB-6509
+5 V
Transceiver
RL
Digital I/O Line
100 kΩ
GND
Figure 10. DIO Channel Configured for Low DIO State with External Load
Example:
The switch is set in the low DIO state, which means all DIO lines are pulled
low. If you want to pull one channel high, complete the following steps:
1. Install a load (RL). Remember that the smaller the resistance, the
greater the current consumption and the lower the voltage (V).
2. Using the following formula, calculate the largest possible load to
maintain a logic high level of 2 V and supply the maximum sink
current (I).
V = I * RL ⇒ RL = V / I
where:
V = 5 V – 2 V = 3 V is the voltage across RL
I = 91 μA is the maximum leakage current to the device at high
input
therefore:
RL = 33 kΩ is the 3 V / 91 μA
This resistor value, 33 kΩ, provides a minimum of 2 V on the DIO line. You
can substitute smaller resistor values, but they draw more current, leaving
less sink current for other circuitry connected to this line.
Increasing Current Drive on NI USB-6509 Devices
Based on the USB specification, the maximum current that a bus-powered
USB device can draw is limited to 500 mA. Consequently, when the
NI USB-6509 is powered only from a USB port, the current drive capacity
at output channels is limited.
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The NI USB-6509 has a current-sense circuit on VBUS (USB power rail).
If the output channels source more than the specified current, the current is
limited. The two following occurrences indicate an overcurrent condition:
•
•
The inputs/outputs are disabled
The LED on the back panel is blinking
can use an optional external +12 VDC power supply. For more information,
refer to the Optional +12 VDC Power Supply Installation section.
DIO Signal Connection
Figure 11 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 input applications include receiving
TTL signals and sensing external device states such as the state of the
switch in the figure. Digital output applications include sending TTL
signals and driving external devices such as the LED shown in Figure 11.
+5 V
LED
41
43
45
47
67
69
71
73
Port 0
P0.<3..0>
Port 7
TTL Signal
P7.<7..4>
+5 V
50, 100
GND
NI USB-6509
Figure 11. NI USB-6509 Signal Connections
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Protecting Inductive Loads
When inductive loads are connected to outputs, 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.
To limit these flyback voltages at the inductive load, install a flyback diode
across the inductive load. For best results, mount the flyback diode within
18 inches of the load. Figure 12 shows an example of using an external
flyback diode to protect inductive loads.
PX.Y
Load
GND
NI USB-6509
Flyback Diode for
Inductive Loads
Figure 12. Limiting Flyback Voltages at the Inductive Load
Sinking and Sourcing Examples
The following sections provide examples of driving a relay less than
24 mA, driving a relay greater than 24 mA, and driving solid-state relays.
Driving a Relay <24 mA
Figures 13 and 14 show examples of connecting the NI USB-6509 to a
relay that does not require more than 24 mA of current.
Vcc
PX.Y
GND
NI USB-6509
Figure 13. NI USB-6509 Sinking Connection Example, <24 mA
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PX.Y
GND
NI USB-6509
Figure 14. NI USB-6509 Sourcing Connection Example, <24 mA
Driving a Relay >24 mA
Figures 15 and 16 are examples of connecting the NI USB-6509 to a relay
that requires more than 24 mA of current. These examples use an additional
transistor circuit.
Vcc
PX.Y
GND
NI USB-6509
Figure 15. NI USB-6509 Sinking Connection Example, >24 mA
Vcc
PX.Y
GND
NI USB-6509
Figure 16. NI USB-6509 Sourcing Connection Example, >24 mA
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Driving SSRs
Figure 17 shows an example of connecting the NI USB-6509 to a
solid-state relay (SSR).
Load
PX.Y
+
_
or
SSR
DC
AC
GND
NI USB-6509
Figure 17. NI USB-6509 SSR Connection Example
LED Indicator
The LED indicator, located on the device back panel, indicates device
status. Table 2 shows the behavior of the LED.
Table 2. PWR/ACT LED Status
LED State
Device Status
Device not powered or in suspend state
Operating normally
Not lit
On, not blinking
Blinking
Device error—USB power budget possibly exceeded
Power Connection
Optional +12 VDC Power Supply Installation
To install a +12 VDC power supply into the NI USB-6509, complete the
following steps:
1. Ensure that the device is powered off by unplugging the USB cable
from the device.
2. After the device is powered off and unplugged, remove the plastic cap
on the DC jack, located on the device back panel.
3. Plug the +12 VDC power supply into the DC jack.
Caution Do not remove external +12 VDC power supply when the device is powered on.
Doing so may reboot the NI USB-6509 and cause device damage.
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+5 V Power Available at I/O Connector
Pins 49 and 99 supply +5 V power to the I/O connector. The power drawn
from these two pins shares the power consumption with the transceivers.
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.
Caution The power pins, +5V and GND, connect to the computer power supply and are
pin to any other voltage source. Doing so may cause injury or permanently damage the
NI USB-6509 components. National Instruments is not liable for any damage or injury
resulting from such a connection.
For more information on maximum power ratings and overcurrent limits,
refer to the Specifications section.
Industrial DIO Features
The NI USB-6509 features digital filtering, programmable power-up
states, change detection, and a watchdog timer.
Digital Filtering
Use the digital filter option available on the NI USB-6509 input lines to
eliminate glitches on input data. When used with change detection, filtering
can also reduce the number of changes to examine and process.
You can configure the digital input channels to pass through a digital filter,
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.
Table 3 lists the pulse widths guaranteed to be passed and blocked.
Table 3. NI USB-6509 Digital Filtering
Pulse Width Passed
Pulse Width Blocked
Filter Interval
Low Pulse
tinterval
High Pulse
Low Pulse
tinterval/2
High Pulse
tinterval
tinterval
tinterval/2
You can enable filtering on as many input lines as is necessary for your
application. All filtered lines share the same timing interval, which ranges
from 200 ns to 200 ms.
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Internally, the filter uses two clocks: the sample clock and the filter clock.
The sample clock has a frequency of 48 MHz that corresponds to a period
of 20.83 ns. The filter clock is generated by a counter and has a period equal
to one half of the specified timing interval. The input signal is sampled on
each rising edge of the sample clock. However, a change in the input signal
is recognized only if it maintains its new state for at least two consecutive
rising edges of the filter clock.
pulse must last to be recognized. The sample clock provides a fast sample
rate to ensure that input pulses remain constant between filter clocks.
Digital Filtering Example
Figure 18 shows a filter configuration with an 208 ns filter interval
(104 ns filter clock).
External
Signal
Filter
Clock
Sample Clock (20.83 ns)
H
H
L
L
L
H
H
H
External
Signal
Sampled
B
H
L
L
L
H
H
H
H
H
H
C
A
Filtered
Signal
Figure 18. Digital Filtering Example
In periods A and B, the filter blocks the glitches because the external signal
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
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
transition. Figure 18 shows a rising (0 to 1) transition. The same filtering
applies to falling (1 to 0) transitions.
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Programmable Power-Up States
At power-up, the output drives on the NI USB-6509 are disabled. All lines
are user-configurable for high-impedance input, high output, or low output.
User-configurable power-up states are useful for ensuring that the
NI USB-6509 powers up in a known state.
To use MAX (recommended) to program the power-up states, select
the device and click the Properties button. Refer to the software
documentation for information about how to program the power-up states
using NI-DAQ with LabVIEW or other National Instruments application
development environments (ADEs).
Note Using the programmable power-up states feature overrides the state configured
using the I/O pull-up/pull-down switch.
Change Detection
You can program the NI USB-6509 to send an interrupt when a change
occurs on any input line.
The NI USB-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 USB-6509 generates an
interrupt, and the NI-DAQ driver then notifies the software.
Note Excessive change detections can affect system performance. Use digital filtering to
minimize the effects of noisy input lines.
The NI USB-6509 sends a change detection when any one of the changes
occurs, but it 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 maximum rate of change detection is determined by the
software response time, which varies from system to system.
An overflow bit indicates that an additional rising or falling edge has been
detected before the software could process the previous change.
Refer to the software documentation for information about how to set up
and implement the change detection.
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Change Detection Example
Table 4 shows a change detection example for six bits of one port.
Table 4. Change Detection Example
Bit
7
6
5
4
3
2
1
0
Changes to detect
—
—
Enable rising-edge
detection
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
yes
no
no
yes
Enable falling-edge
detection
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 USB-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 USB-6509 detects rising
edges on the sensor, which correspond to over-limit conditions.
Bit 0 is connected to a switch. The software can react 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 USB-6509 reports rising edges only on bit 1, falling
edges only on bit 0, and rising and falling edges on bits 7, 6, 5, and 4.
The NI USB-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. You cannot read the state of any lines that are
configured for change detection until the change detection interrupt occurs.
Watchdog Timer
The watchdog timer is a software configurable feature used to set critical
outputs to safe states in the event of a software failure, a system crash, or
any other loss of communication between the application and the
NI USB-6509.
When the watchdog timer is enabled, if the NI USB-6509 does not receive
a watchdog reset software command within the time specified for the
watchdog timer, the outputs go to a user-defined safe state and remain in
that state until the watchdog timer is disarmed by the application and new
values are written, the NI USB-6509 is reset, or the computer is restarted.
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The expiration signal that indicates an expired watchdog continues to assert
until the watchdog is disarmed. After the watchdog timer expires, the
NI USB-6509 ignores any writes until the watchdog timer is disarmed.
Note When the watchdog timer is enabled and the computer enters a fault condition, ports
that are set to tri-state remain tri-stated and do not go to user-defined safe states.
You can set the watchdog timer timeout period to specify the amount of
time that must elapse before the watchdog timer expires. The counter on the
1.5 minutes) before it expires.
Cables and Accessories
Table 5 lists the products available for use with the NI USB-6509.
Table 5. NI USB-6509 Connectivity Options
Cable
Accessory
SH100-100-F shielded cable—part number 185095-01 (1 m)
or 185095-02 (2 m)
SCB-100 connector block—part number 776990-01
R1005050 ribbon cable—part number 182762-0R5 (0.5 m),
182762-01 (1 m), or 182762-02 (2 m)
CB-50 connector block, DIN-rail
mount—part number 776164-90
CB-50LP connector block, panel
mount—part number 777101-01
—
—
CB-100 I/O kit (cable included in kit)
(unshielded)—part number 777812-01
+12 VDC power supply—part number 780308-0x (where
the x indicates different regions or cable options)
For more information about optional equipment available from National
Instruments, visit ni.com.
Specifications
This section lists the specifications of the NI USB-6509 devices. These
specifications are typical at 25 °C, unless otherwise stated.
Number of channels................................96 input/output
Compatibility..........................................TTL/CMOS, single-ended
GND referenced
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Power-on state........................................ Configured as inputs,
pull-up/pull-down (selectable on
the back panel switch)
Pull-up/pull-down resistor...................... 100 kΩ 5%
Data transfers ......................................... Programmed I/O
Digital Input Characteristics
Level
Min
Max
Input voltage
0 V
5.0 V
Input low voltage
—
2.0 V
—
0.8 V
—
Input high voltage
Input low current (Vin = 0 V)
Input high current (Vin= 5 V)
–91.0 μA
91.0 μA
—
Digital Output Characteristics
Level
Min
—
Typ
—
Max
Low-level output current (IOL
)
24 mA
–24 mA
High-level output current (IOH
)
—
—
Output low voltage (VOL), at 100 μA
—
—
—
—
0.0 V
0.1 V
0.5 V
1.0 V
0.2 V
—
at 2 mA
at 12 mA
at 24 mA
—
1.4 V
Output high voltage (VOH), at –100 μA
4.3 V
—
5.0 V
4.9 V
4.5 V
4.0 V
—
—
—
—
at –2 mA
at –12 mA
at –24 mA
—
2.8 V
© National Instruments Corporation
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The total current sinking/sourcing from one port cannot exceed 100 mA.
Total current sourced by all DO lines simultaneously should not exceed
215 mA for bus-powered configuration. If more sourcing current is
required, use an optional external power supply
+5V power available at
I/O connector (pins 49 and 99)...............+4.1 to +5.2 V;
215 mA, maximum
(Bus-powered);
0.5 A, maximum (with
external power supply)
Note 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.
Bus Interface
USB ........................................................USB 2.0 Hi-Speed or full-speed1
Power Requirement
USB
Input voltage....................................4.5 to 5.25 V in configured state
No load current................................150 mA, max
Maximum load current ....................500 mA, max
Suspend current ...............................250 μA, typical
(no external supply)
External DC supply
Input voltage range..........................+12 V 20%
Maximum input current...................1 A
Power input connector.....................DC input jack with threaded
locking ring, 0.08 in. (2 mm)
center pin
Power input mating connector.........Switchcraft S760K
Physical
Dimensions .............................................17.78 × 10.30 × 3.34 cm
(7.0 × 4.1 × 1.3 in.)
I/O connector ..........................................100-pin female 0.050 series SCSI
Weight ....................................................Approx. 239 g (8.4 oz)
1
If you are using the NI USB-6509 in full-speed mode, device performance is lower.
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Safety
This product is designed to meet 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
Note For UL and other safety certifications, 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.
Hazardous Locations
The NI USB-6509 is not certified for use in hazardous locations.
Environmental
The NI USB-6509 device is intended for indoor use only.
Operating temperature
(IEC 60068-2-1 and IEC 60068-2-2)..... 0 to 55 °C
Operating humidity
(IEC 60068-2-56)................................... 10 to 90% RH, noncondensing
Maximum altitude.................................. 2,000 m (at 25 °C ambient
temperature)
Storage temperature
(IEC 60068-2-1 and IEC 60068-2-2)..... –40 to 85 °C
Storage humidity
(IEC 60068-2-56)................................... 5 to 90% RH, noncondensing
Pollution Degree (IEC 60664) ............... 2
Electromagnetic Compatibility
This product 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 according to product documentation.
© National Instruments Corporation
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CE Compliance
This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
•
•
2006/95/EC; Low-Voltage Directive (safety)
2004/108/EC; 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.
Environmental Management
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 not only to the
environment but also to NI customers.
For additional environmental information, refer to the NI and the
Environment web page at ni.com/environment. This page contains the
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 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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National Instruments
National Instruments
(RoHS)
Ё
ড়㾘ᗻֵᙃˈ䇋ⱏᔩ ni.com/environment/rohs_chinaDŽ
RoHS
ni.com/environment/rohs_china
(For information about China RoHS compliance, go to
.)
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Safety Guidelines
Caution Operate the hardware only as described in these operating instructions.
The following section contains important safety information that you must
follow when installing and using the NI USB-6509.
Do not operate the NI USB-6509 in a manner not specified in this
document. Misuse of the device can result in a hazard. You can compromise
the safety protection built into the device if the device is damaged in any
way. If the device is damaged, contact National Instruments for repair.
Do not substitute parts or modify the device except as described in this
document. Use the 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 device.
Do not operate the device in an explosive atmosphere or where there may
be flammable gases or fumes. If you must operate the device in such an
environment, it must be in a suitably rated enclosure.
If you need to clean the device, use a dry cloth. Make sure that the device
is completely dry and free from contaminants before returning it to service.
Operate the 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.
You must insulate signal connections for the maximum voltage for which
the device is rated. Do not exceed the maximum ratings for the device. Do
not install wiring while the 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 device.
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Operate the device at or below the Measurement Category I1. Measurement
circuits are subjected to working voltages2 and transient stresses
(overvoltage) from the circuit to which they are connected during
measurement or test. Measurement categories establish standard impulse
withstand voltage levels that commonly occur in electrical distribution
systems. The following is a description of measurement categories:
•
Measurement Category I is for measurements performed on circuits
not directly connected to the electrical distribution system referred to
as MAINS3 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 E Series 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 Category as defined in electrical safety standard IEC 61010-1. Measurement Category is also referred to as
Installation Category.
2
3
Working Voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.
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.
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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 43 662 457990-0,
Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599,
Canada 800 433 3488, China 86 21 5050 9800,
Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,
Finland 358 (0) 9 725 72511, France 01 57 66 24 24,
Germany 49 89 7413130, India 91 80 41190000, Israel 972 3 6393737,
Italy 39 02 41309277, Japan 0120-527196, Korea 82 02 3451 3400,
Lebanon 961 (0) 1 33 28 28, 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,Portugal 351 210 311 210,Russia 7 495 783 6851,
Singapore 1800 226 5886, Slovenia 386 3 425 42 00,
South Africa 27 0 11 805 8197, Spain 34 91 640 0085,
Sweden 46 (0) 8 587 895 00, Switzerland 41 56 2005151,
Taiwan 886 02 2377 2222, Thailand 662 278 6777,
Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545
National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation.
Refer to the Terms of Use section on ni.com/legalfor more information about National
Instruments trademarks. Other product and company names mentioned herein are trademarks or trade
names of their respective companies. For patents covering National Instruments products, refer to the
appropriate location: Help»Patents in your software, the patents.txtfile on your CD, or
ni.com/patents.
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