NI sbRIO-961x/963x/964x and
NI sbRIO-9612XT/9632XT/9642XT
Single-Board RIO OEM Devices
This document provides dimensions, pinouts, connectivity information,
and specifications for the National Instruments sbRIO-9611, sbRIO-9612,
sbRIO-9612XT, sbRIO-9631, sbRIO-9632, sbRIO-9632XT, sbRIO-9641,
sbRIO-9642, and sbRIO-9642XT. The devices are referred to inclusively in
this document as the NI sbRIO-961x/9612XT/963x/9632XT/964x/
9642XT.
Caution The NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT must be installed
inside a suitable enclosure prior to use. Hazardous voltages may be present.
Caution National Instruments makes no product safety, electromagnetic compatibility
(EMC), or CE marking compliance claims for NI sbRIO devices. The end-product supplier
is responsible for conformity to any and all compliance requirements.
Caution Exercise caution when placing the NI sbRIO devices inside an enclosure.
Auxiliary cooling may be necessary to keep the device under the maximum ambient
temperature rating for the NI sbRIO device. Refer to Specifications section for more
information about the maximum ambient temperature rating.
Figure 1 shows the NI sbRIO-961x/9612XT/963x/9632XT and the
NI sbRIO-964x/9642XT.
NI sbRIO-961x/9612XT/963x/9632XTNI sbRIO-964x/9642XT
Figure 1. NI sbRIO-961x/9612XT/963x/9632XTand NI sbRIO-964x/9642XT
What You Need to Get Started
This section lists the software and hardware you need to start programming
the NI sbRIO device.
Software Requirements
You need a development computer with the following software installed
on it. Go to
for information about software version compatibility.
ni.com/info and enter the Info Code rdsoftwareversion
❑ LabVIEW
❑ LabVIEW Real-Time Module
❑ LabVIEW FPGA Module
❑ NI-RIO
Hardware Requirements
You need the following hardware to use the NI sbRIO device.
❑ NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT
❑ 19–30 VDC power supply
❑ Ethernet cable
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT2ni.com
Dimensions
Note The plated mounting holes are all connected to P1, the ground lug. Connect P1 or
one of the plated mounting holes securely to earth ground. Refer to the Understanding
Ground Connections section for cautions about current loops through the grounding lug.
This section contains dimensional drawings of the NI sbRIO devices. For
three-dimensional models, refer to the Resources tab of the NI sbRIO
product page at
Figure 2 shows the dimensions of the NI sbRIO-961x/9612XT/963x/
9632XT/964x/9642XT.
Figure 2. NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT
Dimensions in Inches (Millimeters)
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT4ni.com
8.460 (214.88)
You can install up to three board-only C Series I/O modules on the
NI sbRIO device. The following figure shows the dimensions of the
NI sbRIO device with three board-only C Series I/O modules installed.
2.889 (73.38)
2.910 (73.91)
5.799 (147.29)
5.820 (147.83)
8.709 (221.21)
7.410 (188.21)
6.160 (156.46)
5.860 (148.84)
5.550 (140.97)
4.785 (121.55)
4.685 (119.00)
4.591 (116.60)
2.885 (73.28)
2.514 (63.86)
2 mm Clearance Required
Above This Capacitor
0.747 (18.97)
0.000 (0)
8ר 0.125 (3.18)
Ø 0.512 (13.00)
0.000 (0)
0.226 (5.74)
0.285 (7.24)
3.340 (84.84)
4.859 (123.42)
6.442 (163.63)
8.200 (208.28)
7.641 (194.08)
Figure 3. NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT with C Series Modules,
Dimensions in Inches (Millimeters)
Note
To maintain isolation clearances on the C Series modules, do not use mounting
hardware larger than 0.240 in. (6.1 mm) in diameter and maintain an air gap of at least
0.200 in. (5.0 mm) from the modules to anything else.
Figure 4 shows the locations of parts on the NI sbRIO device.
1 J10, Connector for C Series Module 3
2Plated Mounting Holes3 J7, Analog I/O Connector
4 J9, Connector for C Series Module 2
5 J6, 24 V Digital Input (sbRIO-964x/9642XT Only)
6J8, Connector for C Series Module 1
7 J5, 24 V Digital Output (sbRIO-964x/9642XT Only)
8 P4, 3.3 V Digital I/O
9Backup Battery
10 P2, 3.3 V Digital I/O
11 J2, RJ-45 Ethernet Port
12 J1, RS-232 Serial Port
13 DIP Switches
14 Reset Button
15 P1, Ground Lug
16 LEDs
17 J3, Power Connector
18 P3, 3.3 V Digital I/O
19 P5, 3.3 V Digital I/O
Figure 4. NI sbRIO Device Parts Locator Diagram
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT6ni.com
Table 1 lists and describes the connectors on NI sbRIO devices and lists the
part number and manufacturer of each connector. Refer to the manufacturer
for information about using and matching these connectors.
Table 1. NI sbRIO Connector Descriptions
ConnectorDescription
J3, Power2-position MINI-COMBICON
header and plug,
0.285 in. (7.24 mm) high
J1, RS-232
Serial Port
9-pin DSUB plug,
0.318 in. (8.08 mm) high,
Manufacturer and
Part Number
Phoenix Contact,
1727566
Tyco Electronics,
5747840-6
Recommended
Mating Connector
Sauro,
CTF02BV8-BN
(included)
—
with 4-40 jacksockets
P2, P3, P4,
P5, J7
50-pin polarized header plug,
0.100 × 0.100 in.
3M, N2550-6002RB3M, 8550-4500PL
(2.54 × 2.54 mm)
J537-pin DSUB plug
with 4-40 jacksockets
J634-pin polarized header plug,
D37P24B6GV00LF
3M, N2534-6002RB3M, 8534-4500PL
FCI,
FCI, D37S24B6GV00
0.100 × 0.100 in.
(2.54 × 2.54 mm)
*
(NI sbRIO-964x/9642XT Only) Use Samtec connector ESW-125-33-S-D if you are connecting one board to P2/P3/P4/P5/J7 and
J5 to accommodate for the height of the J5 connector.
†
(NI sbRIO-964x/9642XT Only) Use Samtec connector ESW-117-33-S-D if you are connecting one board to J6 and J5 to
Figure 12 shows the signals on J1, the RS-232 serial port.
Figure 12. J1, RS-232 Serial Port
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT14ni.com
Understanding Ground Connections
All of the grounds (D GND, AI GND, AO GND, ground lug P1, and the
plated mounting holes) are connected together internally on the NI sbRIO
device. The ESD protection diodes are connected to the plated mounting
holes with a lower inductive path than the path to D GND, so the best ESD
protection is provided by connecting the plated mounting holes and ground
lug P1 to a low inductive earth ground.
Care must be taken to not connect the grounds in such a way that stray
power supply currents traverse through the board. For example, when using
the NI sbRIO-964x/9642XT, the D GND connections on the 24 V DIO
connectors J5 and J6 should not be carrying more than a few tens of
milliamps of current. Ideally, only the return current for the 24 V inputs
should return through D GND on J5, and D GND on J6 should have no
current flow. For the remaining connectors, a good rule of thumb is current
flowing out of the connector should match current flowing in.
To verify correct grounding of the NI sbRIO device, make sure current
flowing into the power connector J3 equals the current flowing out of power
connector J3. These currents should be measured with a current probe after
final assembly of the end product and any current differences investigated
and removed.
All external power supplies should have their connected to a system ground
external to the NI sbRIO device. Do not use the NI sbRIO device as the
common system grounding point. Significant currents traversing through
the NI sbRIO grounds can result in digital component failures. If more than
3 A flows through the common (–) pin on the J3 power connector,
components start to fuse open.
Connecting the NI sbRIO Device to a Network
Use a standard Category 5 (CAT-5) or better Ethernet cable to connect the
RJ-45 Ethernet port to an Ethernet network.
Caution To prevent data loss and to maintain the integrity of your Ethernet installation,
do not use a cable longer than 100 m.
If you need to build your own cable, refer to the Cabling section for more
information about Ethernet cable wiring connections.
The host computer communicates with the device over a standard Ethernet
connection. If the host computer is on a network, you must configure
the device on the same subnet as the host computer. If neither the host
computer nor the device is connected to a network, you can connect the
two directly using a crossover cable.
If you want to use the device on a subnet other than the one the host
computer is on, first connect the device on the same subnet as the host
computer. Use DHCP to assign an IP address or reassign a static IP address
for the subnet where you want it to be and physically move it to the other
subnet. Refer to the Measurement & Automation Explorer Help for more
information about configuring the device in Measurement & Automation
Explorer (MAX).
Powering the NI sbRIO Device
The NI sbRIO device requires a power supply connected to J3.
The supply voltage and current must meet the specifications in the Power
Requirements section of this document, but the actual power requirement
depends on how the device is physically configured, programmed, and
used. To determine the power requirement of your application, you must
measure the power consumption during execution, and add 20% to your
estimates to account for transient and startup conditions.
Note Select a high-quality power supply with less than 20 mV ripple. The NI sbRIO
device has some internal power-supply filtering on the positive side, but a low-quality
power supply can inject noise into the ground path, which is unfiltered.
Four elements of the NI sbRIO device can require power: NI sbRIO internal
operation, including integrated analog and digital I/O; 3.3 V DIO; 5 V
output; and board-only C Series modules installed on the device. Refer to
the Power Requirements section for formulas and examples for calculating
power requirements for different configurations and application types.
Complete the following steps to connect a power supply to the device.
Refer to Figure 13 for an illustration of the power supply connection.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT16ni.com
1.Remove the MINI-COMBICON plug from connector J3 of the
V
C
Common
(–)
Voltage
(+)
NI sbRIO device. Refer to Figure 4 for the location of J3.
2.Connect the positive lead of the power supply to the V terminal of the
MINI-COMBICON plug.
3.Connect the negative lead of the power supply to the C terminal of the
MINI-COMBICON plug.
4.Re-install the MINI-COMBICON connector in connector J3.
Note The 24 V digital output of the NI sbRIO-964x/9642XT requires a separate,
additional power supply. Refer to the Integrated 24 V Digital Output
(NI sbRIO-964x/9642XT Only) and Specifications sections for more information about
powering digital output channels.
Powering On the NI sbRIO Device
When you apply power to the NI sbRIO device, the device runs a power-on
self test (POST). During the POST, the Power and Status LEDs turn on.
When the Status LED turns off, the POST is complete. If the LEDs do not
behave in this way when the system powers on, refer to the Understanding
LED Indications section.
You can configure the device to launch an embedded stand-alone
LabVIEW RT application each time it is booted. Refer to the Running a
Stand-Alone Real-Time Application (RT Module) topic of the LabVIEW
Help for more information.
Table 2 lists the reset options available on NI sbRIO devices. These options
determine how the FPGA behaves when the device is reset in various
conditions. Use the RIO Device Setup utility to select reset options. Access
the RIO Device Setup utility by selecting Start»All Programs»National Instruments»NI-RIO»RIO Device Setup.
Table 2. NI sbRIO Reset Options
Reset OptionBehavior
Do not autoload VIDoes not load the FPGA bit stream from flash memory.
Autoload VI on device powerupLoads the FPGA bit stream from flash memory to the FPGA
when the device powers on.
Autoload VI on device rebootLoads the FPGA bit stream from flash to the FPGA when you
reboot the device either with or without cycling power.
Note If you want a VI to run when loaded to the FPGA, complete the following steps.
1.Right-click the FPGA Target item in the Project Explorer window in
LabVIEW.
2.Select Properties.
3.In the General category of the FPGA Target Properties dialog box,
place a check in the Run when loaded to FPGA checkbox.
4.Compile the FPGA VI.
Connecting Serial Devices to the NI sbRIO Device
The NI sbRIO device has an RS-232 serial port to which you can connect
devices such as displays or input devices. Use the Serial VIs to read from
and write to the serial port from a LabVIEW RT application. For more
information about using the Serial VIs, refer to the Serial VIs and Functions topic of the LabVIEW Help.
Using the Internal Real-Time Clock
The system clock of the NI sbRIO device gets the date and time from the
internal real-time clock at startup. This synchronization provides
timestamp data to the device.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT18ni.com
Configuring DIP Switches
AMP 0650
1-5435802-7
OFF
SAFE MODE Switch
1 SAFE MODE
2CONSOLE OUT
3 IP RESET
4NO APP
Figure 14. DIP Switches
5 USER1
6 NO FPGA
All of the DIP switches are in the OFF (up) position when the NI sbRIO
device is shipped from National Instruments.
The position of the SAFE MODE switch determines whether the embedded
LabVIEW Real-Time engine launches at startup. If the switch is in the OFF
position, the LabVIEW Real-Time engine launches. Keep this switch in the
OFF position during normal operation. If the switch is in the ON position
at startup, the NI sbRIO device launches only the essential services
required for updating its configuration and installing software. The
LabVIEW Real-Time engine does not launch.
Push the SAFE MODE switch to the ON position if the software on the
NI sbRIO device is corrupted. Even if the switch is not in the ON position,
if there is no software installed on the device, the device automatically
boots into safe mode. The SAFE MODE switch must be in the ON position
to reformat the drive on the device. Refer to the Measurement & Automation Explorer Help for more about installing software and
reformatting the drive.
With a serial-port terminal program, you can use the serial port to read the
IP address and firmware version of the NI sbRIO device. Use a null-modem
cable to connect the serial port on the device to a computer. Push the
CONSOLE OUT switch to the ON position. Make sure that the serial-port
terminal program is configured to the following settings:
•9,600 bits per second
•Eight data bits
•No parity
•One stop bit
•No flow control
Keep this switch in the OFF position during normal operation. If
CONSOLE OUT is enabled, LabVIEW RT cannot communicate with the
serial port.
IP RESET Switch
Push the IP RESET switch to the ON position and reboot the NI sbRIO
device to reset the IP address to
subnet and the IP RESET switch is in the ON position, the device appears
in MAX with IP address
the device in MAX. Refer to the Resetting the Network Configuration of the
NI sbRIO Device section for more information about resetting the IP
address.
0.0.0.0. If the device is on your local
0.0.0.0. You can configure a new IP address for
NO APP Switch
Push the NO APP switch to the ON position to prevent a LabVIEW RT
startup application from running at startup. If you want to permanently
disable a LabVIEW RT application from running at startup, you must
disable it in LabVIEW. To run an application at startup, push the NO APP
switch to the OFF position, create an application using the LabVIEW
Application Builder, and configure the application in LabVIEW to launch
at startup. For more information about automatically launching VIs at
startup and disabling VIs from launching at startup, refer to the Running a
Stand-Alone Real-Time Application (RT Module) topic of the LabVIEW
Help.
USER1 Switch
You can define the USER1 switch for your application. To define the
purpose of this switch in your embedded application, use the RT Read
Switch VI in your LabVIEW RT embedded VI. For more information
about the RT Read Switch VI, refer to the LabVIEW Help.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT20ni.com
NO FPGA Switch
1
2
3
4
Push the NO FPGA switch to the ON position to prevent a LabVIEW
FPGA application from loading at startup. The NO FPGA switch overrides
the options described in the Boot Options section. After startup you can
download bit files to flash memory from a LabVIEW project regardless of
switch position. If you already have an application configured to launch at
startup and you push the NO FPGA switch from ON to OFF, the startup
application is automatically enabled.
Using the Reset Button
Pressing the Reset button reboots the processor. The FPGA continues to
run unless you select the Autoload VI on device reboot boot option. Refer
to the Boot Options section for more information.
Understanding LED Indications
1FPGA2 USER3 POWER4STATUS
Figure 15. NI sbRIO Device LEDs
FPGA LED
You can use the FPGA LED to help debug your application or easily
retrieve application status. Use the LabVIEW FPGA Module and NI-RIO
software to define the FPGA LED to meet the needs of your application.
Refer to LabVIEW Help for information about programming this LED.
USER LED
You can define the USER LED to meet the needs of your application. To
define the LED, use the RT LEDs VI in LabVIEW. For more information
about the RT LEDs VI, refer to the LabVIEW Help.
The POWER LED is lit while the NI sbRIO device is powered on. This
LED indicates that the 5 V and 3.3 V rails are stable.
The STATUS LED is off during normal operation. The NI sbRIO device
indicates specific error conditions by flashing the STATUS LED a certain
number of times as shown in Table 3.
Table 3. Status LED Indications
Number of
Flashes
Indication
1
(one flash every
couple seconds)
2The device has detected an error in its software. This
3The device is in safe mode because the SAFE MODE
4The device software has crashed twice without
Continuous
flashing or solid
The device is unconfigured. Use MAX to configure
the device. Refer to the Measurement & Automation Explorer Help for information about configuring the
device.
usually occurs when an attempt to upgrade the
software is interrupted. Reinstall software on the
device. Refer to the Measurement & Automation Explorer Help for information about installing
software on the device.
DIP switch is in the ON position. Refer to the
Configuring DIP Switches section for information
about the SAFE MODE DIP switch.
rebooting or cycling power between crashes. This
usually occurs when the device runs out of memory.
Review your RT VI and check the device memory
usage. Modify the VI as necessary to solve the
memory usage issue.
The device has detected an unrecoverable error.
Format the hard drive on the device. If the problem
persists, contact National Instruments.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT22ni.com
Resetting the Network Configuration of the
NI sbRIO Device
If the NI sbRIO device is not able to communicate with the network, you
can use the IP RESET switch to manually restore the device to the factory
network settings. When you restore the device to the factory network
settings, the IP address, subnet mask, DNS address, gateway, and Time
Server IP are set to
VIs are unaffected.
Complete the following steps to restore the device to the factory network
settings.
1.Move the IP RESET DIP switch to the ON position.
2.Press the Reset button.
3.Move the IP RESET switch to the OFF position.
The network settings are restored. You can reconfigure the settings in MAX
from a computer on the same subnet. Refer to the Measurement & Automation Explorer Help for more information about configuring the
device.
Note If the device is restored to the factory network settings, the LabVIEW run-time
engine does not load. You must reconfigure the network settings and reboot the device for
the LabVIEW run-time engine to load.
0.0.0.0. Power-on defaults, watchdog settings, and
The four 50-pin IDC headers, P2–P5, provide connections for
110 low-voltage DIO channels, 82 D GND, and eight +5 V voltage outputs.
Figure 16 represents a single DIO channel.
U1: 5 V to 3.3 V Level Shifter, SN74CBTD3384CDGV from Texas Instruments
D1 and D2: ESD-Rated Protection Diodes, NUP4302MR6T1G from ON Semiconductor
R1: Current-Limiting Posistor, PRG18BB330MS1RB from Murata
Figure 16. Circuitry of One 3.3 V DIO Channel
I/O Protection
Drive Strength
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT24ni.com
The 33 Ω current-limiting posistor, R1, and the protection diodes, D1 and
D2, protect each DIO channel against externally applied voltages and ESD
events. The combination of R1 and D1 protects against overvoltage,
and the combination of R1 and D2 protects against undervoltage. The
resistance of R1 increases rapidly with temperature. During overvoltage
conditions, high current flows through R1 and into the protection diodes.
High current causes internal heating in the posistor, which increases the
resistance and limits the current. Refer to the Specifications section for
current-limiting and resistance values.
The NI sbRIO devices are tested with all 110 DIO channels driving 3 mA
DC loads, for a total of 330 mA sourcing from the FPGA. The FPGA uses
minimum 8 mA drivers, but the devices are not characterized for loads
higher than 3 mA.
Signal Integrity
NI sbRIO boards have a 60 Ω characteristic trace impedance. The
characteristic impedance of most IDC ribbon cables is 110 Ω, which is
grossly mismatched from the board. However, headers P2–P5 were
designed such that the signals are interwoven with ground
(signal/ground/signal/ground, etc.), which greatly improves the signal
integrity. This is sufficient for most applications
For the best possible signal integrity, use a 3M 3353 series ribbon cable,
which has a characteristic impedance of 65 Ω. This cable has a ground
plane that connects to the ground plane of the board at pin 1 and pin 50. The
internal ground plane of this cable also reduces noise and radiated
emissions.
Using +5 V Power from 3.3 V DIO Headers P2–P5
Each of the four DIO headers has two pins to provide +5 V power for
external applications. These +5 V outputs are referenced to D GND on the
headers and are connected directly to the internal 5 V power plane of the
NI sbRIO device. The +5 V source has current limiting and overvoltage
clamps. Nevertheless, sudden current steps and noisy loads can inject
high-frequency transients into the power planes of the device. Such
transients can cause intermittent failures in the digital timing and lead to
unexpected behavior. Add filters and/or additional current limiting
between the external load and the +5 V output if the external load is not a
quiet, slowly ramping DC load. An LC filter of 6.8 μH and 100 μF per
200 mA load should be sufficient, but the OEM user is responsible for final
requirements and testing.
The NI sbRIO power supply has a total of 2 A external load at 5 V. This
total includes 200 mA per installed C Series module. For example, if three
C Series modules are installed, only 2 A – (3 × 0.2) = 1.4 A is available for
use on headers P2–P5. Each pin on the headers is rated for 2 A, but a typical
28 AWG ribbon cable is rated for only 225 mA per conductor. The OEM
user is responsible for determining cabling requirements and ensuring that
current limits are not exceeded.
Connector J7 provides connections for 32 single-ended analog input
channels or 16 differential analog input channels. Connector J7 also
provides one connection for AI SENSE and nine connections for AI GND.
Refer to the I/O and Other Connectors on the NI sbRIO Device section for
a pinout of connector J7.
The integrated analog input of the NI sbRIO device is similar to that of the
NI 9205, but there is no isolation or digital I/O. Figure 17 shows the input
circuitry for one channel.
The remainder of this section provides a brief discussion of possible analog
input configurations. For a more in-depth discussion and examples, refer to
the Analog Input chapter of the M Series User Manual on
Tr i g
PGIA
Trigger
ADC
16-bit
ADC
AI+
AI–
AISENSE
AI GND
Figure 17. Input Circuitry for One Analog Channel
MUX
Filtered
Differential
Amplifier
ni.com.
Differential Measurement Configurations
You can use a differential measurement configuration to attain more
accurate measurements and less noise. A differential measurement
configuration requires two inputs for each measurement, thus reducing the
number of available channels to 16. Table 4 shows the signal pairs that are
valid for differential connection configurations.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT26ni.com
Table 4. Differential Pairs
+
–
+
–
AI+
AI–
AI GND
Grounded
Signal Source
+
–
+
–
AI+
AI–
AI GND
Floating
Signal Source
R
b
R
b
R
b
= 100 kΩ –1 MΩ
ChannelSignal+Signal–ChannelSignal+Signal–
0AI0AI816AI16AI24
1AI1AI917AI17AI25
2AI2AI1018AI18AI26
3AI3AI1119AI19AI27
4AI4AI1220AI20AI28
5AI5AI1321AI21AI29
6AI6AI1422AI22AI30
7AI7AI1523AI23AI31
Figure 18 shows how to make a differential connection for a floating signal
and for a ground-referenced signal.
You can use an RSE measurement configuration to take measurements on
32 channels when all channels share a common ground. Figure 19 shows
how to make an RSE analog input connection for a floating signal. National
Instruments does not recommend making an RSE connection for a
ground-referenced signal.
Figure 19. RSE Analog Input Connection
In an RSE connection configuration, the NI sbRIO device measures each
input channel with respect to AI GND.
Non-Referenced, Single-Ended (NRSE) Measurements
You can use an NRSE measurement configuration to take measurements on
all 32 channels while reducing noise more effectively than with an RSE
connection configuration. This configuration provides remote sense for the
negative (–) input of the programmable gain instrumentation amplifier
(PGIA) that is shared by all channels configured for NRSE mode. The
behavior of this configuration is similar to the behavior of RSE
connections, but it provides improved noise rejection. Figure 20 shows
how to make an NRSE analog input connection for a floating signal and for
a ground-referenced signal.
Floating
Signal Source
+
–
R
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT28ni.com
b
Rb = 100 kΩ –1 MΩ
AI
+
AI SENSE
AI GND
Figure 20. NRSE Analog Input Connection
–
Grounded
Signal Source
+
–
AI SENSE
AI GND
AI
+
–
Note The analog input and analog output of the NI sbRIO-963x/9632XT/964x/9642XT
share an internal power supply. Putting the analog input into Sleep Mode turns off analog
output as well. However, putting analog output into Sleep Mode does not turn off analog
input.
Integrated Analog Output
(NI sbRIO-963x/9632XT/964x/9642XT Only)
Connector J7 of the NI sbRIO-963x/9632XT/964x/9642XT provides
connections for four analog output channels. Refer to the I/O and Other
Connectors on the NI sbRIO Device section for a pinout of connector J7.
The integrated analog output of the NI sbRIO device is similar to that of the
NI 9263, but there is no isolation. Each channel has a digital-to-analog
converter that produces a voltage signal. Each channel also has overvoltage
and short-circuit protection. Refer to the Specifications section for
information about the overvoltage and short-circuit protection.
Figure 21 shows the analog output circuitry for one channel.
DAC
Amplifier
Figure 21. Analog Output Circuitry for One Channel
Overvoltage/
Short-Circuit
Protection
AO
AO GND
When you apply power to the NI sbRIO device, analog output channels are
unpowered until data is written to them. When the channels receive the first
data, they turn on and drive the output voltage configured in software. This
behavior is similar to that of the NI 9263. Refer to the Specifications section
for more information about power-on voltage. Refer to the software help
for information about configuring startup output states in software.
Connect the positive lead of the load to the AO terminal. Connect the
ground of the load to an AO GND terminal. Figure 22 shows a load
connected to one analog input channel.
Figure 22. Load Connected to One Analog Input Channel
Integrated 24 V Digital Input
(NI sbRIO-964x/9642XT Only)
Connector J6 of the NI sbRIO-964x/9642XT provides connections for
32 simultaneously sampled digital input channels. Each channel has
one pin, DI, to which you can connect a digital input signal. The remaining
two pins of J6 are the ground reference pins, D GND. Refer to the I/O and
Other Connectors on the NI sbRIO Device section for a pinout of
connector J6.
AO
Load
AO GND
The integrated digital input of the NI sbRIO device is similar to that of the
NI 9425, but there is no isolation. The 24 V digital input channels are
sinking inputs, meaning that when the device drives a current or applies a
voltage to the DI pin, the pin provides a path to D GND. D GND is the
current return path for sourcing digital input devices. The NI sbRIO-964x/
9642XT internally limits current signals connected to DI. For more
information about input current protection, refer to the Specifications
section.
You can connect 2-, 3-, and 4-wire sourcing-output devices to the
NI sbRIO-964x/9642XT. A sourcing-output device drives current or
applies voltage to the DI pin. An example of a sourcing-output device is an
open collector PNP.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT30ni.com
Connect the sourcing-output device to the DI pin on the NI sbRIO-9642/
+
_
D GND
DI
Sourcing-Output
Device
External
Powe r
Supply
9642XT. Connect the common of the external device to the D GND pin.
Refer to Figure 23 for an illustration of connecting a device to the
NI sbRIO-9642/9642XT.
Figure 23. Device Connected to One Digital Input Channel
The digital input channel registers as ON when the sourcing-output device
applies a voltage or drives a current to the DI pin that is in the input ON
range. The channel registers as OFF when the device applies a voltage or
drives a current to the DI pin that is in the input OFF range. If no device is
connected to the DI pin, the channel registers as OFF. Refer to the
Specifications section for more information about ON and OFF states.
Integrated 24 V Digital Output
(NI sbRIO-964x/9642XT Only)
Connector J5 of the NI sbRIO-964x/9642XT provides connections for
32 current-sourcing digital output channels. Refer to the I/O and Other
Connectors on the NI sbRIO Device section for a pinout of connector J5.
The DO pin of the channel drives current or applies voltage to a connected
device. You can directly connect the NI sbRIO-964x/9642XT to a variety
of industrial devices such as motors, actuators, relays, and lamps. Make
sure the devices you connect to the NI sbRIO-964x/9642XT are compatible
with the output specifications. Refer to the Specifications section for the
output specifications.
The 24 V digital outputs of the NI sbRIO-964x/9642XT require a
6–35 VDC power supply separate from the power supply connected to J3.
Connect the device to DO and D GND, and connect the external power
supply to V
Increasing Current Drive
If you do not modify the NI sbRIO device, each channel has a continuous
output current of 250 mA. If you want to increase the output current to a
device, you can connect any number of channels together in parallel. For
example, if you want to drive 1 A of current, connect DO<0..3> in parallel
as shown in Figure 25. You must turn all parallel channels on and off
simultaneously so that the current on any single channel cannot exceed the
250 mA rating. You must also select heavier cabling for the connection
between the negative terminal of the device and the negative terminal of the
power supply for the device. Refer to Figure 25 and use heavier cabling
where indicated by heavier traces.
and D GND, as shown in Figure 24.
sup
V
sup
6– 35 VDC
DO
Device
D GND
+
–
External
Powe r
Supply
Figure 24. Device Connected to One Digital Output Channel
V
sup
250 mA
DO0
250 mA
DO1
250 mA
DO2
250 mA
DO3
D GND
1 A
+
Device
–
6– 35 VDC
+
External
Powe r
–
Supply
Figure 25. Increasing the Current to a Device
Note
Refer to the Understanding Ground Connections section for cautions about D GND.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT32ni.com
If you add heat sinks to the output transistors U49–U56 and U110–U117,
such that the measured case temperature of the transistors remains below
65 °C at ambient temperature of 55 °C, each channel can drive up to 1.5 A.
However, the total current through all channels must not exceed 20 A.
1
Use
a heat sink that dissipates 0.5 W for each transistor driving up to 1.5 A. For
example, for four transistors, each driving 1.5 A, use a 2 W heat sink.
Table 5 shows the channels associated with the output transistors.
Table 5. Transistors Associated with DO Channels
DO ChannelsTransistor
0, 1U49
2, 3U50
4, 5U51
6, 7U52
8, 9U53
10, 11U54
12, 13U55
14, 15U56
16, 17U117
18, 19U116
20, 21U115
22, 23U114
24, 25U113
26, 27U112
28, 29U111
30, 31U110
1
The 20 A total-current limit is based on the maximum current rating of the DSUB connector pins, 5 A, multiplied by 4, the
number of V
Protecting the NI sbRIO Device from Flyback Voltages
If a digital output channel is switching an inductive or energy-storing
device such as a motor, solenoid, or relay, and the device does not have
flyback protection, install a flyback diode as shown in Figure 26.
V
sup
DO
Flyback
D GND
Diode
Figure 26. Connecting a Flyback Diode to the NI sbRIO 964x/9642XT
Inductive
Device
I/O Protection
The NI sbRIO-964x/9642XT is protected against overcurrent, inrush, and
short-circuit conditions in accordance with IEC 1131-2.
Each digital output channel on the NI sbRIO-964x/9642XT has circuitry
that protects it from voltage and current surges resulting from short circuits.
6– 35 VDC
+
External
Powe r
–
Supply
Caution The NI sbRIO-964x/9642XT can be damaged under overvoltage and reverse bias
voltage conditions. Check the voltage specifications for all devices that you connect to the
NI sbRIO-964x/9642XT.
Excessive current through a DO pin causes the channel to go into an
overcurrent state. In an overcurrent state, the channel cycles off and on until
the short circuit is removed or the current returns to an acceptably low level.
Refer the Specifications section for typical trip currents.
Each channel has a status line that indicates in software whether the
channel is in an overcurrent state. Refer to the software help for information
about the status line.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT34ni.com
Specifications
Unless otherwise noted, the following specifications are typical for the
range –40 to 85 °C for the NI sbRIO-96x2XT, and for the range –20 to
55 °C for the NI sbRIO-961x/963x/964x.
Network
Network interface................................... 10BaseT and 100BaseTX
Accuracy ......................................... ±1% of full scale
Scaling coefficients
Typical Scaling
Nominal Range (V)
Coefficient (μV/LSB)
±10324.5
±5 162.2
±1 32.45
±0.2 6.49
AI Absolute Accuracy Tables and Formulas
The values in the following tables are based on calibrated scaling
coefficients, which are stored in an onboard EEPROM. Values are valid for
a two-year period between external calibrations.
Accuracy summary
Absolute Accuracy at
Nominal
Range
(V)
±107,82036.652.024497.6
±53,99018.626.412248.8
±18704.276.073012.0
±0.22441.371.96165.2
*
Sensitivity is the smallest voltage change that can be detected. It is a function of noise.
•For an NI sbRIO-9642/9642XT with three installed board-only C
Series modules, 20 mA total current through the 3.3 V DIO pins, and
1 A of current through the 5 V output, calculate the total power
requirement as follows:
P
= 8.00 W
int
P
= 3.30 W
CSer
P
= 0.08 W
DIO
P
= 5.55 W
5V
Adding 20% for transient conditions, 16.93 W × 1.2 = 20.32 W
Total power requirement = 20.32 W
•For an sbRIO-9612/9612XT with one installed board-only C Series
module, 330 mA total current through the 3.3 V DIO pins, and no 5 V
output used, calculate the total power requirement as follows:
P
= 7.50 W
int
P
= 1.10 W
CSer
P
= 1.28 W
DIO
P
= 0.00 W
5V
Adding 20% for transient conditions, 9.88 W × 1.2 = 11.86 W
Total power requirement = 11.86 W
Backup battery........................................3 V lithium coin cell,
BR2032 (–40 to 85 °C)
Safety Voltages
Connect only voltages that are within this limit.
V terminal to C terminal.........................35 VDC max,
Measurement Category I
Measurement Category I is for measurements performed on circuits not
directly connected to the electrical distribution system referred to as
MAINS voltage. MAINS is a hazardous live electrical supply system that
powers equipment. 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.
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT48ni.com
Caution Do not connect the system to signals or use for measurements within
Cd/Hg/Pb
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(For information about China RoHS compliance, go to
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.)
Measurement Categories II, III, or IV.
Environmental Management
National Instruments 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 Customers At 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 and Electronic Equipment, visit
Battery Replacement and Disposal
Battery Directive This device contains a long-life coin cell battery. If you need to replace
it, use the Return Material Authorization (RMA) process or contact an authorized National
Instruments service representative. For more information about compliance with the
EU Battery Directive 2006/66/EC about Batteries and Accumulators and Waste Batteries
and Accumulators, visit
The National Instruments Web site is your complete resource for technical
support. At
troubleshooting and application development self-help resources to email
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