Real-Time Embedded Controllers for PXI
Real-Time Embedded Controllers for PXI
NI PXI-8176 RT, NI PXI-8175 RT, NI PXI-8145 RT
• Real-time, deterministic performance
• Headless, reliable operation
• 1.26 GHz Intel Pentium III
processor, maximum
• 40 kHz single PID loop
rates, maximum
• Ethernet connectivity
• Watchdog timer
• Integrated serial ports
• Built-in nonvolatile memory
• GPIB interface
• Serial interface
• CAN interface
• MXI-3 chassis expansion
Required Software
• LabVIEW Professional or
Full Development System
• LabVIEW Real-Time Module
Real-Time PXI Modules
• Data acquisition
• Reconfigurable I/O
• SCXI signal conditioning
(except 112x and 119x switches)
• Digitizers
• Dynamic signal acquisition
• Switches
• Image acquisition
• Motion control
Overview
The National Instruments RT Series PXI embedded controllers
deliver a flexible, rugged platform for your deterministic, real-time
embedded measurement and control applications. You develop your
applications with NI LabVIEW and the LabVIEW Real-Time Module
under Windows or Mac OS X, then download and embed the
program to run on your RT Series PXI embedded controller under a
real-time operating system. Thus, you can use all the powerful
development tools of LabVIEW to develop real-time, reliable
solutions. With RT Series PXI embedded controllers, your real-time
measurement and control systems capitalize on all the benefits of PXI
systems, including rugged industrial construction and modularity.
Build real-time PXI systems with any number and combination of
PXI and Compact PCI measurement hardware modules.
All RT Series embedded controllers deliver real-time deterministic
performance and headless, reliable operation. NI offers embedded
controllers ideal for high-performance control applications with PID
control loop rates up to 40 kHz and embedded controllers ideal for
lower-cost real-time applications (see Table 1). Each controller
communicates with a Windows or Mac OS X computer running the
LabVIEW Real-Time Module over standard Ethernet, and includes a
Watchdog timer for monitoring the status of a system.
performs a soft reboot of the host computer. Because the RT Series
PXI embedded controllers run in a separate chassis with a dedicated
power supply, the operator can shut down the host computer entirely
without disrupting the embedded program.
Dual-Boot Option
You can use Measurement & Automation Explorer (MAX) to
configure some models of the Windows-based PXI embedded
controllers to dual-boot as real-time embedded controllers. With
MAX on a Windows host machine, you can create floppy disks that
you can use to install or remove the real-time operating system from
your PXI controller without affecting the native Windows operating
system. (The Mac OS X hosts will have these utilities shipped with
the LabVIEW Real-Time Module.) The result is an RT Series
controller that boots off a floppy disk into a real-time operating
system or off the hard drive into a Windows operating system. To
enable a Windows-based PXI embedded controller to dual-boot with
Real-Time
Processor
Maximum rate for
single PID loop
Ethernet connectivity
Serial ports
GPIB ports
Nonvolatile memory
DRAM
Watchdog
Shock and Vibration
1
With
2
Because
PXI-8176 RT
1.26 GHz Intel Pentium III
39 kHz
100BaseTX/10BaseT
2
1
20 GB Ultra
DMA IDE hard drive
2
512 MB SDRAM,
maximum
1
Software configurable
Basic
PXI-8175 RT
866 MHz Intel Pentium III
30 kHz
100BaseTX/10BaseT
2
–
20 GB Ultra DMA
IDE hard drive
2
512 MB SDRAM ,
maximum
1
Software configurable
Basic
PXI-8145 RT
266 MHz low-power
Intel Pentium MMX
6 kHz
100BaseTX/10BaseT
1
–
32 MB CompactFlash
128 MB SDRAM,
maximum
1
Internal
Extended
Reliable Stand-Alone Operation
With an RT Series embedded controller, the LabVIEW Professional
Development System, and the LabVIEW Real-Time Module, you can
permanently embed code on the system so it starts automatically
when the system boots. To ensure reliable operation for real-time
control, embedded LabVIEW Real-Time applications continue to
run even if the host computer is interrupted or the operator
upgrades, 64 MB standard on PXI-8145 RT; 128 MB standard on PXI-8176 RT and PXI-8175 RT
of rapidly changing hard drive technology, contact NI for the latest hard drive options
Table 1. PXI Real-Time Embedded Controller Selection Guide
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137
Real-Time Embedded Controllers for PXI
Real-Time Embedded Controllers for PXI
a real-time OS, you must purchase a LabVIEW Real-Time run-time
license with your Windows-based controller.
PXI Hardware for Real-Time Applications
The modularity of PXI and open connectivity of LabVIEW make it
easy to integrate a variety of I/O within your application. You can
take advantage of the timing and triggering functionality of PXI to
synchronize measurements across several I/O devices, increasing the
performance of your real-time system.
Create a custom real-time embedded solution using an RT Series PXI
Embedded Controller with any number and combination of PXI plug-in
modules. Built-in LabVIEW libraries help you create powerful
applications with data acquisition, dynamic signal acquisition,
motion control, image acquisition, and CAN communication. Use
NI-VISA to integrate third-party PXI/CompactPCI modules in your
application. In addition, the RT Series PXI controllers include built-in
Ethernet and serial ports. You can use these built-in ports to
communicate with peripheral devices while reserving slots in the PXI
chassis for other measurement I/O devices. Table 2 lists all of the PXI
hardware you can use with LabVIEW Real-Time, with page references
for additional information.
Function
Data acquisition
Product
PXI-61xx S Series multifunction DAQ
PXI-60xx E Series multifunction DAQ
PXI-67xx analog output
PXI-65xx digital I/O
PXI-660x counter/timer
PXI-7831R reconfigurable I/O
2
All SCXI hardware except 112x
and 119x switching modules
All SCC hardware
PXI-5102
PXI-4472 24-bit dynamic signal acquisition
PXI-2501
PXI-2503
PXI-2565
PXI-2590
PXI-14xx image acquisition module
1,2
PXI-7358 high-performance 8-axis motion controller
PXI-7344 high-performance 4-axis motion controller
2
PXI-7334 low-cost 4-axis motion controller
2
PXI-8232 GPIB/Gigabit Ethernet module
PXI-842x Serial interface modules
PXI-846x CAN interface modules
2
PXI-833x MXI-3 for system expansion to multiple
PXI Chassis
Page
197
199
362
432
386
220
270
251
448
402
488
488
497
492
603
633
636
638
665
717
747
157
Integration with Mac OS X
The LabVIEW Real-Time Module and PXI are your solution for
data acquisition, GPIB, serial, and Ethernet communication within
the Mac OS X environment. Build your application on a host Mac
OS X computer and download it directly to an RT Series embedded
PXI controller.
PXI-8176 RT
The PXI-8176 RT is a high-performance PXI
embedded controller capable of running a
single PID loop at 39 kHz. With the 1.26 GHz
Pentium III processor, the PXI-8176 RT is a
high-end, real-time controller.
PXI-8175 RT
The PXI-8175 RT contains an 866 MHz
Intel Pentium III processor capable of
running a single PID loop at 30 kHz.
PXI-8145 RT
The PXI-8145 RT controller is ideal for
low-cost, real-time applications. This series
of PXI controllers includes a low-power
Pentium 266 MHz processor capable of
running a single PID loop at up to 6 kHz.
The controllers module can withstand
higher vibration and shock because it
uses nonvolatile CompactFlash memory.
With the single-board architecture and
low-power processor, NI built this controller
for embedded applications where space
is limited.
SCXI and SCC
signal conditioning
Digitizers
Dynamic signal acquisition
Switches
Image acquisition
Motion control
Bus interfaces
PXI chassis expansion
1
Requires
LabVIEW Vision Development Module, version 6.1 or later
2
Not supported under Mac OS X
Real-Time
Table 2. Additional Hardware for Real-Time Applications
138
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Real-Time Embedded Controllers for PXI
Real-Time Embedded Controllers for PXI
Specifications
Ordering Information
Step 1. Controller Model –
Select one of the following models:
Complies with PXI Specification and CompactPCI, PICMG 2.0 specification.
Supports bus-mastering in all PXI/CompactPCI slots.
NI PXI-8176 RT ............................................................778468-33
NI PXI-8175 RT ............................................................778467-33
NI PXI-8145 RT ............................................................778201-01
To convert a standard PXI-8175 or PXI-8176 controller to an RT Series PXI
controller, you can purchase one LabVIEW Real-Time run-time license per
controller to add real-time target capabilities.
Physical
Number of slots required
PXI-8145 RT ...................................................... 1 system slot, 1 controller expansion slot (to the left of
system slot)
PXI-8175 RT/PXI-8176 RT................................. 1 system slot, 3 controller expansion slots (to the left of
system slot)
LabVIEW Real-Time Run-Time License ..................777849-01
Step 2. NI Factory Installation Service –
Select one of the following
for system/controller set ups (see page 249)
Dimensions
PXI-8175 RT/ PXI-8176 RT................................ 8.1 by 13 by 21.6 cm (3.2 by 5.1 by 8.5 in. 3U)
PXI-8145 RT ...................................................... 4.1 by 13 by 21.6 cm (1.6 by 5.1 by 8.5 in. 3U)
Customer-defined configuration
1
................................960596-01
PXI/SCXI Combination Systems..................................960596-04
1
Systems
Weight
PXI-8145 RT ...................................................... 340 g (12 oz)
PXI-8175 RT ...................................................... 1.1 kg (2.4 lb)
PXI-8176 RT ...................................................... 1.2 kg (2.7 lb)
only
Step 3. Memory Upgrades –
If you want to upgrade your memory,
select one or two of the following memory options, as applicable to
your selected controller:
Peripherals
Ethernet
PXI-8145 RT/8175 RT/8176 RT ........................ 10/100 BaseT, RJ-45 connector
128 MB SDRAM (8145 RT) ......................................777885-128
256 MB SDRAM (8175 RT, 8176 RT)........................778469-256
512 MB SDRAM (8175 RT, 8176 RT)........................778469-512
Serial Port
PXI-8175 RT/PXI-8176 RT................................. 2 RS-232
PXI-8145 RT ...................................................... 1 RS-232
BUY ONLINE!
Visit
ni.com/info
and enter pxi8176rt, pxi8175rt, and/or pxi8145rt.
GPIB Port
PXI-8176 RT ...................................................... PCI-GPIB/TNT, full size
DRAM
PXI-8175 RT/PXI-8176 RT................................. 512 MB maximum, 7.5 ns SDRAM
1 SO-DIMM Socket
PXI-8145 RT ...................................................... 128 MB maximum, 10 ns SDRAM
1 SO-DIMM Socket
Hard drive (PXI-8175 RT, PXI-8176 RT) ............ Internal 2.5 in., 20 GB minimum
Flash memory (PXI-8145 RT) ............................ 32 MB
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139
Real-Time
