Combine cRIO 9076 and cRIO 9081

I have two FPGA real time controllers: cRIO 9076 and cRIO 9081. Due to not having the latest version of LabVIEW (2011), I am unable to use cRIO 9081. Since cRIO 9076 has only 4 slots for the modules, I am thinking of using cRIO 9081 as a slave just to add more modules on its slots. Will this work? If so, how can I connect cRIO 9081 to cRIO 9076. Any suggestion is appreciated.
Solved!
Go to Solution.

Hello ExcelX,
Unfortunately, there is no meaningful way to interface with the 9081 without having the correct versions of LabVIEW (at least 2011) and NI-RIO (at least 4.0). It does run windows, so you could in theory boot it up in Windows and attach a monitor to it, but you wouldn't be able to run any code on it.
You could download the trial version of LabVIEW 2011 and use it with your 9081 for thirty days. But I recommend just upgrading to LabVIEW 2011 - the 9081 is a powerful (and expensive) CompactRIO.
Colden

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Problem in data acquisition for cRIO-9076 wth c series drive interface module 9516

I am using LabVIEW for my project i.e., the speed control (using PID) of a motor and want to create a vi for the same.
The specifications of the products being used are as follows:
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Continuous Data Logging with NI 9236 an cRIO 9076 with FPGA

Hey all,
i'm a beginner in LabVIEW/FPGA. My goal is it to
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connected to a strain gauge and the cRIO 9076.
I've written a code and I see the incoming data on the FPGA.vi.
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Attachments:
1.jpg ‏98 KB
2.jpg ‏71 KB
4.jpg ‏337 KB

In your first image one problem is that you are starting the module on each iteration of the loop. I can't tell how your FIFO is configured, but take a look at the example "Hardware Input and Output->CompactRIO->Module Specific IO->Analog Input->NI 923x Continuous DMA.pvproj. I don't know which LabVIEW version you are using but I found this example in 2012.

Brushless Motor Commutation using cRIO 9076

I need some help as I trying to find a way to do motor commutation.
I am developing a closed loop control system that consists of an applimotion motor (UTH-100-A-25-A-x-000) and AMC Digital Drive (DPRALTE-020B080) on CompactRIO 9076 FPGA Real Time Controller. The motor does not have hall sensors. Any suggestion on how to do motor commutation using this FPGA device is appreciated.
Thanks

How difficult it will be will depend on how complex those interfaces are.
If the encoder interface is simple, for example a clock and data pin that returns only the position, then writing the code to talk to it will be pretty straight forward.
Some absolute encoders use very complex protocols. I can't tell you exactly how hard it will be because I don't know this encoder.
I would expect that writing the analog position feedback to the drive will be easier but I don't know exactly what the drive is expecting either. You wrote earlier that the drive manufacturer told you specifically that the drive would work with analog position feedback and no hall sensors. I don't see how that would de done from the datasheet. You need to be sure that this is true because otherwise this approach will be impossible.
You should start by tackling just the encoder half of the problem. Hook up the encoder to your DIO module and start trying to query it. I hope you have more information about its interface than what is found in the datasheet- otherwise you would either need to contact the manufacturer or do some experimentation.
Give it a try and if you run into specific obstacles then we can help you with those.
BTW- The easier solution is to throw money at the problem and buy motors, encoders, and drives that are compatible with each other. For example, NI sells motors and cRIO modules that can drive them, including brushless. At that point the software is just opening an example and adding your own position setpoints.

New to NI cRIO 9076

Hello everyone!
i am completely new to interfacing NI modules with labview. i interfaced cRIO 9076 through ethernet, installed all the softwares (NI RIO, NI RT etc). it is getting detected in NI MAX. but all it shows is "cRIO is in safe mode( no softwares installed)" and status LED blinks two times indicating trouble with software.
how do i configure the device. what are the things to be done to use cRIO.?
PS:i also have gone through the getting started guide from this link
http://www.ni.com/gettingstarted/setuphardware/compactrio/
Thank you!

i have installed everything from the LabVIEW evaluation CD. i have also checked that all the necessary cRIO softwares are installed.
i use 2013 version of FPGA,NI MAX and RIO
OS is Windows 7
when i check the NI distributed system it says i have attached modules at port 1&4(in screenshot). so i guess there is no problems with the cRIO.
Attachments:
Distributed system.JPG ‏67 KB
national instruments softwares.JPG ‏123 KB

Installation improper cRIO 9076

Estimados:
tengo mun cRIO 9076, utilizo LabVIEW 2014 y me encontrado con el infortunio del mensaje MODO SEGURO INSTALACION INAPROPIADA.
He realizado todas las sugerencias encontradas en la web:
cambiar el nombre del dispositivo.
volver a instalar el software
en repetidas ocaciones y el resultado sigue siendo el mismo.
No avanzo en el proyecto y es ultimo paso para termianrlo.
Alguine podria ayudarme?
Que me sugueren?
De antemano Muchas gracias por sus valiosas aportaciones
Jose Marticorena

Que tal JMarticorena,
Me gustaría compartir contigo los siguientes links que hacen referencia a las causas del estado "Safe Mode (Improper Installation)" del cRIO y a posibles soluciones.
Why is my CompactRIO (cRIO) System State: Connected - Safe Mode (Improper Installation)?
Improper Installation Message on CompactRIO with NI-RIO 3.1 and MAX 4.5
En el segundo link comenta que una posible solución puede ser actualizar el software que tenemos instalado en la computadora Host por lo cual me gustaría que nos comentaras que versiones de NI-RIO y de MAX posees?
También me gustaría que ingresaramos al Console Out del cRIO para realizar un diagnóstico del controlador cuando se encuentra booteando. Este diagnóstico nos podría dar una idea más clara del posible error. Te comparto el link con el procedimiento para ingresar al Console Out.
How do I enable the Console Out on CompactRIO, Single-Board RIO, CompactFieldPoint Controllers?
Por favor comparte con nosotros un screen shot de la información que aparece en la ventana de la Terminal.
Espero esta información sea de utilidad y quedo al pendiente de tus comentarios.
Saludos!
Antonio S.
Applications Engineer - NI Mexico

CRIO 9076 AI Sampling Problem

Hi,
I have a question about the NI 9223 samping rate in our cRIO 9076 system.
Since we are hoping to samping at a rate up to 500K or 1M, we are now using the user controlled I/O sampling.
Right now, we are sampling at 500K (2us). But I got a tick count of 99 ticks (around 2.5us) for the sampling node only.
Should I be expecting so many ticks for the sampling block? Did I do anything wrong?
Thank you so much!
Solved!
Go to Solution.
Attachments:
problem.JPG ‏399 KB

Hi hang-up,
It looks like you are specifying the loop rate for the entire while loop you are in, and not just that one specific part of code. Because you have your loop timer controlled by an front panel object, it is possible that the code compiled, but if you change the loop time to a low value, the code cannot complete in time. I would suggest that you isolate the acquisition you are trying to do in it's own loop so that it can run at full speed.
Additionally, in order to get the full MS/s acquisition, you are going to need to architect your acquisition. I would encourage you to check out the example code in our Example Finder for the NI 9223 User Controlled II Compositionally for the best way to get these maximum acquisition rates. Additionally, depending on how you are going to be exporting this data from the FPGA, your ART controller may not be able to handle a sustained MS/s throughput.
To explicitly answer your question, I suspect that because you are trying to complete a large loop in a short amount of time, the FPGA cannot complete the task in time, so it defaults to a rate that can be better handled. For the control you are looking for, I would encourage you to move your application over to the architecture found in the example project to get the behavior you are looking for.
Ben N.
Applications Engineering
Certified LabVIEW Developer

CRIO 9076 internal block diagram?

Hi guys--
I'm trying to work up a document on our cRIO 9076 for the lab, and I'd like to include a schematic/block diagram of its overall internal structure...something like what PC motherboard makers give (example below). The internals of the RT controller are pretty easy to guess at, but I'm a little fuzzy on the connections between that and the FPGA, and between the FPGA and the chassis modules. Any pointers on where I should be looking (not in the manual, by the way)?
Thanks a bunch.

David--
Thanks a bunch for your reply. That manual got me pointed in the right direction. I also found this little wiki stub:
http://en.wikipedia.org/wiki/CompactRIO
which specifies the controller-fpga connection as PCI, meaning much of the details are probably obvious with a better understanding of PCI busses. In any case, I've managed to start a diagram of my own that will suit my needs just fine.
Thanks again, and have a great day.

CRIO 9076 disconnecting

I am attempting to use a cRIO-9076 with the NI 9512 and the NI P70530 stepper driver. However, I am having difficulties keeping the 9076 connected to my host PC. I've read the forums on this problem before, but those answers did not help solve my problem. The cRIO will connect when first powered on or reset, and will be visible in MAX, but when I try to view the attached devices in MAX (e.g. NI-9512 module), the cRIO will disconnect.
I also cannot connect to the device in LabVIEW at any point.
I am using LabVIEW Real-Time 11.0.1 on the cRIO, and also Real-TIme 11.0.1 on the host PC (LabVIEW 2011 SP1 f2).
Any suggestions are appreciated.
Thank you,
Enan

Hey Enan,
Thanks for posting on our boards. You posted on the LabVIEW boards which is good, but I think you will probably get more responses if you post on the boards that are for the cRIO and RealTime stuff.
Here is that Board: Real-Time Measurement and Control [cRIO, R Series, FlexRIO, sbRIO, GPIC]
That board is frequented by more people that interact with the cRIO and RT more than just the LabVIEW board.
When you post there, I would also add what your OS is and what bit OS you are using. It might be helpful!
Thanks for posting!
Douglas C.
Applications Engineer
National Instruments

Varying ON time pulse train generation using NI cRIO-9073 and NI 9401 module

Hi,
I am a beginner to the Labview environment. Am using NI cRIO-9073 and NI 9401 module; and NI Labview 2013. I want to generate 64 pulses, wherein the ON time of the pulses are varying as shown below. The Pulses need to have a constant period of about 34µs. The pulses should have a constant amplitude anywhere from 5 to 10V. I am trying to do the same in FPGA interface mode but failing to do so. Please advise me..... Please also suggest pdf and video resources to learn Labview programming.
Pulse ON Time
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t81,
It is possible to make frequency measurements with either the 9422 or the 9425 but each will have its own limitations in the range of frequency it will be able to accurately measure.
A few things to know:
1. What are the frequency ranges for each sensor (tach and MFM)? More than just knowing Hz/kHz will be helpful.
2. To what accuracy do you need to measure these signals?
The 9422 supports a specialty digital configuration counter input that can be configured for frequency measurement (see link)
http://zone.ni.com/reference/en-XX/help/372603F-01/riohelprt/crio-9422_rt/
The specialty mode is only available when using Scan Interface mode, not with FPGA.
But the max clock rate in the specifications for the 9422 is 4kHz so this may not be sufficient for the tachometer. I believe this is the max rate at which the module will update its state no matter how fast the underlying software (RT controller) is running.
The 9425 has a higher clock rate (~140kHz) but doesn't support the specialty digital mode mentioned above. It is also a software timed only device but this shouldn't be a problem if you use FPGA.
Dan

Error on RT Get CPU Load With CRIO 9024 and LV2010

I just try to monitor CPU Load on my CRIO 9024 using LV2010 and i get Error -2233 with RT Get CPU Load.vi
It worked with LV2009 and not anymore ... Someone has some issues ?
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Hi silencer,
Thank you for posting on National Instruments' forum.
Can you tell me your version of LabVIEW RT, and NI-RIO drivers please?
I verified the problem with LabVIEW 2010 and a cRIO 9022 and it works.
Can you send another screenshot please?
Best Regards,
Romain P.
National Instruments France
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>> NIDays 2011, le mardi 8 février au CNIT de Paris La Défense

CRIO-9076 USB

Bonjour,
J'aimerais savoir s'il est possible de connecter une clef USB au port dédié sur un cRIO-9076. J'ai essayé plusieur méthode (clef en NTFS et FAT32 de grande et de petite capacité) et impossible de la détecter via Filezilla.
Doit-on installer quelque chose de spécifique dans les logiciels de l'automate auquel je n'aurais pas pensé ?
Merci par avance.
Windows 7 - LabVIEW 2012
Résolu !
Accéder à la solution.

Pardon du double post, en fait un peu de patience et de lecture m'ont permis de trouver la solution.
Une clef USB en FAT32 est bien détectée mais sous "U:\". La réception des données via Fillezilla et à l'aide des VIs FTP sous LabVIEW fonctionne impec'.

LABVIEW 2012 - shared variable error during programming of NI CRIO 9023 and TPC 2212

HELLO,
i am using CRIO 9023 with TPC 2212 and LV 2012. I want to develop a stand alone app which has a front panel on TPC. at first i am building a simple app with two controls variables, one is a sliding bar on TPC Vi and the other one is the while loop variable "i" on CRIO VI. i used shared variables.
first i creat shared variable on CRIO side and access this on TPC Vi. I COMPILE both Vi,s and they are working fine. But when i created the slide bar control in TPC VI, compiled and deploy the TPC Vi, it get deployed in TPC. But when i start compiling the CRIO VI an error mesage occured as follows;
I have tried every option to best of my understanding like formating crio then installing all softwares including Network variable engine etc. i also go in properties of the executable file of TPC Vi and go in properties-shared variable- then check the "deploy variable in application" option . below is image displayed.
I am in despirate need for solving this problem as i have to develop the final app for testing soon. can some one help me regrarding this.
REGARDS

I would not recommend using shared variable engine. It is supposed to make things easier, but in fact, you will spend more time troubleshooting why it is not working than you will actually coding an alternative solution.
Try the Simple TCP Messaging instead.
http://zone.ni.com/devzone/cda/epd/p/id/2739
Machine Vision, Robotics, Embedded Systems, Surveillance
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CRIO-9014 and 9853 CAN Module

Hello folks,
When trying to deploy a CAN Receive example from LabVIEW 8.6 onto the 9014 (VxWorks) controller, I keep getting a "shared libarary failed to load" error (nican.*). Some investigating (i.e. searching and reading on ni.com) revealed that perhaps nican cannot be used with the 9853 and the 9014 combo.
I still have many questions, that perhaps some of you can answer, please.
1. Is the following statement true?
The nican "driver" vis cannot be used for a 9853 card in a cRIO-9014 chassis. Instead, it's necessary to use the 985x drivers.
2. Do the 985x drivers have to be installed on the 9014? If so, can it be done using MAX?
3. Is there an FTP client running continously on the 9014?
4. Is there a document explaining how/where to FTP software to on the 9014 controller if needed?
5. Since the 9853 can only be used in fpga programming mode (i.e. scan interface mode is invalid), do I have to have an FPGA host vi running on the 9014 or can I leave the host on an "external" computer?
This is my first attempt at using a cRIO for anything so please feel free to assume that I don't know anything that isn't explicitly stated in the "getting started with LabVIEW..." document.
Thanks in advance.
Chris

chassan,
1 - Yes, that's true, as confirmed here.
2 - Yes, they must be present on the 9014. I believe you should add them via MAX as there are no special instructions in the readme of the drivers.
3 - Here are a couple articles on ftp and cRIO:
FTP Transfer of Files between Host and Real-Time Targets in MAX How Can I Use LabVIEW to FTP Files to and from My Real-Time Target
4 - Same as above
5 - I am not exactly clear on the quesiton.
Hope this helps, post again if you have other inquiries!
Peter Flores
Applications Engineer

Combine cRIO 9076 and cRIO 9081

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