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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
lines, a watchdog timer, digital input filtering and change detection, and
output programmable power-up states. The NI USB-6509 also features an
optional external DC power
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DIO Signal Connection ....................................................................16 Protecting Inductive Loads...............................................................17 Sinking and Sourcing Examples.......................................................17 Driving a Relay <24 mA ...........................................................17 Driving a Relay >24 mA ...........................................................18 Driving SSRs..............................................
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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: • Cable Strain Relief Groove Method—Press the USB cable into one 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
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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
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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/info and enter the info code rd3233 to download and print the panel mounting template PDF. 2. Using the template, ma
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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 12 V to 5 V Regulation Port 1 Port 2 Port 3 VBUS Power VBUS Current Sense Port 4 I/O 96 DIO 96 DIO 96 DIO 96 DIO Protection Port 5 Industrial Digital Port 6 I/O Control FPGA Port 7 Programmable Port 8 Power-Up States USB USB Port 9 Watchdog Timer 96 DIO 96 DIO 96 DIO 96 DIO Data/Control USB Data Interface Port Port 10 Digital Change Port
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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
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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. � Meas
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P2.7 1 51 P8.7 P5.7 2 52 P11.7 P2.6 3 53 P8.6 P5.6 4 54 P11.6 P2.5 5 55 P8.5 P5.5 6 56 P11.5 P2.4 7 57 P8.4 P5.4 8 58 P11.4 P2.3 9 59 P8.3 P5.3 10 60 P11.3 P2.2 11 61 P8.2 P5.2 12 62 P11.2 P2.1 13 63 P8.1 P5.1 14 64 P11.1 P2.0 15 65 P8.0 P5.0 16 66 P11.0 P1.7 17 67 P7.7 P4.7 18 68 P10.7 P1.6 19 69 P7.6 P4.6 20 70 P10.6 P1.5 21 71 P7.5 P4.5 22 72 P10.5 P1.4 23 73 P7.4 P4.4 24 74 P10.4 P1.3 25 75 P7.3 P4.3 26 76 P10.3 P1.2 27 77 P7.2 P4.2 28 78 P10.2 P1.1 29 79 P7.1 P4.1 30 80 P10.1 P1.0 31 81 P7.
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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 12 12 P2.7 P5.7 P8.7 P11.7 3 4 3 4 P2.6 P5.6 P8.6 P11.6 56 56 P2.5 P5.5 P8.5 P11.5 78 78 P2.4 P5.4 P8.4 P11.4 910 910 P2.3 P5.3 P8.3 P11.3 11 12 11 12 P2.2 P5.2 P8.2 P11.2 13 14 13 14 P2.1 P5.1 P8.1 P11.1 15 16 15 16 P2.0 P5.0 P8.0 P
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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 LSB 1, 3, 5, 7, 9, 11, 13, 15 P2.<7..0> Bi-directional data lines for P2.7 P2.0 port 2 2, 4, 6, 8, 10, 12, 14, 16 P5.<7..0> Bi-directional data lines for P5.7 P5.0 port 5 17, 19, 21, 23, 25, 27, P1.<7..0> Bi-directional data lines for P1.7 P1.0 29, 31 port 1 18, 20, 22, 24, 26, 28, P4.<7..0> Bi-directional d
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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. Digital I/O Circuitry The NI USB-6509 provides 96 lines of bidirectional DIO signals, P<0..11>.<0..7>. You can configure the direction as input or ou
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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/
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NI USB-6509 +5 V Transceiver 100 kΩ Digital I/O Line R L 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 (R ). Remember that the smaller the resistance, the L greater the current consumption and the lower the voltage (V). 2. Using the following formula, calculate the largest possible load to maint
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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 R L 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 (R ). Remember that the
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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 If you want to increase the current drive capacity on the NI USB-6509, you can use an optional external +12 VDC power supply. For more information, refer to the Optional +12 VDC Power Supply Installat
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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
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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 NI 6509 User Guide and Specifications 18 ni.com
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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 Not lit Device not powered or in suspend state On, not blinking Operating normally Blinking Device error—USB power budget possib
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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 not isolated. Do not connect a +5V power pin directly to GND or connect
