Calling dll of Leetro MPC08 PCI motion controller card problems.

Hi,
I have been trying to develop an application using Labview 8.5. I need to control a motorized linear stage which uses the Leetro MPC08 PCI motion controller card. The manufacturer gave me example VIs which I configure to call "c:\windows\system32\MPC08.dll". About four months ago, I remembered that i tested them and they seemed to work somehow (but I did not finish the full test since i was busy doing other things). Nevertheless, when I got back to continue my development a few days ago, i just could not get the same old VIs to work. I could only get one library function of the card to work which is the "auto_set" which returns "4" which is the number of axes that the card can control. The next function I need to call is "init_board" but this one keeps returning "-3". The manual indicates that any negative number returned means there has been something wrong. I would guess it is "PCI initialization fails" but honestly do not know for sure. Can anyone help? My computer is a PC running windows XP.
Thanks in advance for any kind help offered.

Hi,
Wrapped VISA call means that the SubVI contains a set of VISA calls.
If you are calling the VI's individually it is possible that the VI's need to pass a reference to each other, so they might not work if run individually. Hard to know without the DLL docs, so to speak. It could be possible that there is no need to pass references between subVI's.
Direct VISA calls are probably not necessary if the device runs with the vendors software. The main goal was to verify functionality with either VISA or vendor app.
Ok I was looking at the Leetro web site, you can forget the VISA stuff as it is a PCI card, duh... you said that at the begining. :-)
The manual says Win2000 or XP. is this being run on two different systems?
Mark
Mark Ramsdale

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Motion controller card need to program PWM or not?

I just want to know about motion controller card (coz may be i will use it)
First, Motion controller card need to program PWM for drive DC motor or not? (If I want to control the dc motor by PWM signals!)
Second, If my motor have encoder (increment) the motion controller card can be read the position or speed directly or not?
Third, Normally motion controller card need Labview for programming or not?
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bkk,
here are the answers you are looking for
Motion Control boards like the PCI-7344 generate a +/-10 V signal to control DC axes. As they can't provide enough power to drive a motor directly an external power amplifier like the MID-7654 or a 3rd party drive with a +/- 10 V command input is necessary. Typically these power drives generate PWM power signals for the motors.
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The NI-Motion driver provides a well documented API for LabVIEW, C and other programming languages.
After installing the NI-Motion driver you will find lots of example programs for LabVIEW and C that demonstrate every aspect of the boards' functionality. NI motion controllers run the control loop in hardware so the examples will work for both, closed loop and open loop (stepper motor) applications.
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Jochen Klier
National Instruments Germany

PCI USB2 Controller card conflicts with network card

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5v 32A
12v 1 14A
12v 2 13A
-ide hard drive as primary master (windows drive)
DVD-RW as primary slave
ide hard drive as secondary master (raid drive 1)
ide hard drive on ide controller card primary master (raid drive 2)
ide hard drive on ide controller card secondary master (raid drive 3)
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"My problem is with a promise ultra100 tx2 pci ide controller card that I got with a western digital hard drive a year or 2 back. I can plug the card in with no hard drives attached to it, boot into windows, update the drivers, etc. but when I plug either of my hard drives into the card, it goes to a black screen directly after the screen the promise controller brings up after the main msi bios screen."
That means reboot cycle?
Have you tried with more powerfull PSU?
"P.S. - is there any way to get this board to boot from a USB key? My only options in the bios for booting to USB are USB-FDD, USB-ZIP, and USB-CDROM."
USB-FDD, USB-ZIP or in HDD area.. depend how will be detected your USB key.
"It's my understanding that this problem is caused because the ide controller card can't inject its bios into the option rom of the motherboard. I've tried disabling as many other features that I can in the bios to clear up some space in the option rom, but so far no luck. I made sure I have the latest MSI bios, but I am 1 or 2 revisions behind on the promise controller card bios, because I don't have a floppy drive and I can't get any bootable cds to work."
Could be...
"If need be, I can get a new ide controller card, but I would rather not, because this one works just fine, and I am pretty short on cash. I am also worried that this same problem will happen with other controller cards that I pick up. Any advice on how to get this thing working?"
"-phoenix rev 1.2 (I think. Can't remember. Whatever liveupdate says is the newest)"
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Error -10401 appears when I try to read in my Encoders (TTL-Signal) via a LabView-"nuDrive 2SX-411" and Motion Controller Card

Hy there.
Im using two "Haidenhain ERN 420" Encoders with TTL-Output Signal
A NI-Motion Controller 7334 with an NI-"nuDrive 2SX-411"
When I try to Read the Encoders Position (with ex.-Programm/Source) the Message: "Error -10401 occurred at AI Group Config ... the specified device is not a NI-product" appears
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Phil,
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Functions Palette >> Motion & Vision >> Flexmotion >> Trajectory Control >> Read Position.
Functions Palette >> Motion & Vision >> Flexmotion >> Analog & Digital I/O >> Read Encoder Position.
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C:\Program Files\National Instruments\LabVIEW 6.1\examples\Motion\FlexMotion\One Axis.llb\One Axis Move with Position Monitor.vi
Make sure that you have configured and initialized your board properly in MAX.
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elopment Library section of the NI Developer Zone for the Motion Control section with tutorials and example code.
Good luck!
Nestor.
Nestor
National Instruments

Id like to be able to initialize my 7344 Motion Controller card from within Labview and not through motion and automation explorer

Every time I boot my PC , I have to reinitialize my 7344 through Motion and Automation Explorer in order for it to work. Does anyone have any suggestions as to how to initialize it from within labview itself?
thanks

Hi,
I am sending you a Vi for initializing the controller.The only thing you have to do is that you need to use sequence structure. In the first sequence you need to use the VI which is attached i.e 0 (default). Then the next sequence will be the program itself.
So that as soon as you run your vi the first thing done will be initialising controller using LabVIEW. Then your program will run.
Here the led in the front panel will glow green only the first time you are initializing.The next time it will be dim but no doubt your initializing will be taking place.Hope this vi solves your problem.
Thxs
Manish Karnik
Application Engineer
Cruiser Controls
Mumbai, India.
Attachments:
Initializing controller.vi ‏42 KB

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How old do you feel PCIE technology is?
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If PCIE was really mature, all PCI slots would be simply phased out today on a motherboard. To me, the reason for the standard PCI to remain on a board is like a fall back plan, where makers do not jumped onto the bandwagon to start rolling out masses of PCIE cards. Probably high cost, probably more R&Ds needed due to compatibility issues, this I'm really not sure.
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I need help getting the right PCIe Raid Controller card.

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I'm currently using the drives in JBOD mode.
The RAID features built into Disk Utility support JBOD, Mirroring, and Striping without the use of a card.
RAID methods that require checksum calculation, (e.g., RAID 5) always require a card to provide adequate speed.
Consider whether you really NEED your Mac OS X Boot Volume to be on a RAID at all. A great deal of its data is either invariant (Mac OS X code and Applications code) or temporary ( caches). If damaged, Mac OS X and Applications can be rebuilt from DVDs in a few hours.
Moving the Users files off to another Volume is a great way to speed up your Mac Pro, since it reduces competition for the busy Boot Drive.

PCI-7344 motion controller encoder reset problem

I'm using a PCI-7344 motion controller for my application. I'm currently working on simple display of position and velocity using an encoder. I am able to read the encoder pulser, but I am unable to reset it. I want the encoder pulses to be display continously till I press a reset button on the screen. After pressing the reset button on the front panel, the encoder count should become zero and start counting again till I press stop button. Kindly give me a simple example of encoder reset using push button. Thanks.
Regards,
Giridhar Rajan
Cruiser Controls
Mumbai, India

This should do what you are looking for. I am not at the computer that has a motion controller card in it, so I have not tested it.
It resets the encoders for Axis 1 and Axis 2. Unless you have a different configuration for encoders and axes, it should work.
Hope that this helps,
Bob
Bob Young - Test Engineer - Lapsed Certified LabVIEW Developer
DISTek Integration, Inc. - NI Alliance Member
mailto:[email protected]
Attachments:
Reset encoders.vi ‏66 KB

How do I get labview for linux to send out ascii code to a motion controller?

I have posted part of this problem but I will now try to clearify things. I have an x-y stage that needs motion control. I have to run the motion controller from within a linux system (RedHat 7.1) due to others in the research area. I have found a motion controller card (PCI) that will run under linux. This card is not National Instruments. I understand that they do not have drivers for their controller cards. This other card comes with the companies own software that uses ASCII codes to move the motors on the stage. I was hoping to create a program that could call those ASCII codes to move the stage. An example would be if a user wanted to have the stage move to the right he would press a b
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> would I go about programming something like this? I have heard of
> others doing things like this but I am unsure of how to program
> labview to send out ASCII codes to a PCI card to move motors.
Look in the manual to see get familiar with the sequences of codes you
need to write, and more importantly, where you write them to. I suspect
a memory location, but it could be a socket or port.
Each of these locations will have a slightly different way of accessing
it. Once you know, search devzone for how to do it on linux, or post
back here.
After you can send the codes to the right location, you probably want to
build a state machine that simplifies the interface and prevents certain
actions from taking place. Now determine which buttons or
keys perform
which actions and use either the event structure or the older polling
for control changes to affect state changes in the state machine.
I'm summarizing here assuming that you know what a state machine is and
why you'd want to use it. If I'm assuming too much, do some research
and post again with more specific questions. Also be sure to look at
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Greg McKaskle

KT266 PRO2 and PCI ATA controller

I have a lot of ide devices so I bought a PCI ide controller years ago. Now I got my little brothers motherboard. MSI KT266 PRO2, and plugged all my stuff into it. When it was time to reinstall Win, but it would not boot the cd, or from floppy. I checked the boot order, all looks fine.
Then I tried to take the PCI IDE controller out, and then it booted my winXP cd fine.
So basically, When the PCI ATA bios is loaded (the card), I'm unable to boot from cd-rom or floppy. Only boot from HDD1 works. So every time I need to reinstall windows, I need to unplug all harddrives from the PCI IDE controller card. Then windows is installed I can plug the harddisks back in...
I can't find an explanation to this...
No problem when the PCI IDE controller is used with 2 other motherboard I have. Latest bios is used on the motherboard and the pci IDE adapter card.
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AMD athlonxp 1700+
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NI-Motion PXI Card Device Status = Is Not Responding

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Solved!
Go to Solution.
Attachments:
PXI-7358 - Is Not Responding.PNG ‏29 KB

Hi Jeffmg,
This seems to be a known issue. There is an internal knowledgebase documenting this problem and a potential solution.
The solution according to the KB article:
"This problem can occur when a previous board was mapped to the host machine. The NIMtnSvr.exe is based on Board ID's and sometimes gets stuck. To fix this, close any NI software running and then open the task manager and end the NIMtnSvr.exe process. This will shutdown the server and allow it to start from scratch the next time it runs. When you open MAX, the boards will appear on the local host correctly mapped."
-N
National Instruments
Applications Engineer

Connecting Hall Effect Sensor as an encoder(feedback) for PCI 7356 Motion Controller

Hi,
We have Labview 2010 and the following hardwares for testing a specific motor (a brushless DC motor):
NI PCI 7356 Motion Controller
NI UMI 7774
AKD Servo Drive P00606
However, I met some difficulty when wiring the motor to the motor drive(and controller). In the manual, it says PCI 7356 needs encoder signals as the feedback. But our motor doesn't have a built-in encoder. It has three Hall Effect Sensors, which we plan to use as an encoder. If we feed the hall sensor signals as the encoder phase signals (Phase A, B) to the drive/controller, I wonder if Labview or PCI 7356 (after an appropriate configuration) can adjuct the phase (from 120 degree to 90). Does it work even without the adjustment?
If the above doesn't work, can I feed only one Hall Effect sensor signal as Encoder Phase A and don't feed anything to Phase B (since I only need control the motor speed in one direction)? Will PCI 7356 or Labview recognize the signal and function accordingly?
If it doesn't work as well, could I use motor's Back EMF as a feedback (this motor produces a decent sinusoidal back EMF)? If I can, how should I configure the hardware and wire the motor to controller accordingly?
If all three above don't work, could you suggest a way to solve this problem?
Thanks so much for your help.
Best,
Chen

Hey Chen,
I have comfirmed that the PCI card will not be able to do feedback with the hall effect sensors. However, you could do that with our NI 951x modules if you run it in FPGA mode. You would need an extra IO module to set up the hall effect sensors with, but you could effectively customize your control and your feedback on the FPGA board immediately.
For your other post, I am not sure you can create a time constraint on the move, I believe that when you define a motion, you would need to define the number of steps or the position and not the time. If you are running the motor at a specific velocity for an amount of time, you would need to set that as the number of revolutions and not time.
I hope this helps.
Regards,
A. Zaatari
National Instruments
Applications Engineer

How to use LabVIEW FPGA on Custom FPGA board other than NI products .....Also how to develop RTx DLL for a customised motion controller hardware

I'm using RTx, LabVIEW RT and LabVIEW FPGA.
The GUI is windows based. The motion control and FPGA are RTx based.
Is there any way to develop device drivers for the custom hardware in RTx. For example motion controller hardware, FPGA hardware, PCI hardware.
Is there a possibility to use custom FPGA boards to use with LabVIEW FPGA.
Please send me some links
Thanks
Bhoopathy
Take life as it comes! you may never know what's gonna happen Tommorrow

CODE WARRIOR Hello. I believe this question was answered in a previous post. Please let us know if you have any new questioins or if you need some clarification.
You are able to develop device drivers for your custom hardware using the NI Measurement Hardware Driver Development Kit.
However, it is not possible to use custom FPGA boards with LabVIEW FPGA. The FPGA boards have to be one of our R Series boards. Here are some links that should shed some light on the Measurement Hardware DDK.
Measurement Hardware Driver Development Kit Frequently Asked Questions
NI Measurement Hardware DDK (Driver Development Kit)
Please post if you have further questios.
Efosa O.
NIAE

Problems with a PCI-7344 motion controller

Hi all,
I've run into a weird problem with a NI PCI-7344 motion controller, where I
have a program that provides the motion control for my program that works
reasonably well, but when I make minor changes gets motion errors. The changes
are not specifically to the motion parts, just changing a couple of globals
that provide communication with another part of the program (and another piece
of hardware). The errors I get indicate that I am trying to enable limits
switches at the wrong time in my program. I will add that I do not get any
errors when I go through the program in debug mode
Tnx,
P.W.Monroe

The portion of my program that gets the errors uses the "Flexmotion" Find Home
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exampes for using these VIs, they are followed by a loop that has a VI that
monitors the status of these VIs for completion, both move complete and Home or
Index Found. The globals that I mentioned are being used to terminate the loops
if an error condition occurs elsewhere, and do not cause the program to do
anything other than terminate looking at the status and then go into a wait
loop. It crashes when it goes into the loop when I substitute a different
global, which is baffling to me, as they aren't triggering something that would
result in a race condition.

Calling dll of Leetro MPC08 PCI motion controller card problems.

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