Hi, can someone please tell me how to write a program to set the fluke 45 to fixed current mode and acquire voltage readings?
Thanks
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set fluke 45 to constant current mode using rs232
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Agilent n3300A constant voltage operation
Hi, I have been trying to use the following progam to fix the voltage output of Agilent n3300A and readout the current measurements. However the intrument is reading out the open circuit curent/ voltage values of the load and does not regulate the voltage to the desired value. Is there anythng wrong with using the voltage configurartion driver to set the voltage or is there a better way to write a voltage to the instrument.
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Contrôle d'instrument avec Labwindows CVI
Bonjour,
Je développe actuellement une application de contrôle d'instrument avec Labwindows CVI et j'ai utilisé l'assistant IO pour réaliser cette opération. Le problème se pose lorsque l'assistant génère le code, Labwindows me génère l'erreur suivante " la ressource est valide mais VISA ne peut actuellement pas y accéder".
J’attire votre attention que les commandes sont testées avec l’assistant IO est les résultats sont récupérés.
Merci.
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Read time variable @TIME from 4156c with Labview
Hi,
I am using the agilent 4156c with Labview and it works well but, even if i can read voltage or current with labview, i don't know how
I can read the variable @TIME. I know I will have to put some time and effort into this, but if anyone has any quick solutions to pick up the data after running from the front panel that would be a huge help.
Cheers!
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Mac VISA remote resource access from Windows
Hi, I'm really new to LabVIEW and VISA. I understand that I can access the resources of another computer through VISA server. I have this Windows computer, which is hooked up to a fluxgate magnetometer through a PCI card, and I have enabled the security settings for the VISA server on this computer. I am trying to connect my Macbook Pro to the Windows for remote access to the magnetometer and get readings through LabVIEW. Under the Resource Editor in the NI-VISA Configuration window in my Mac, I cannot seem to find the magnetometer. This applies to the lsdaq window as well. I'm not sure if it helps, but I can find the magnetometer in the NIvisaic on my Mac, and the readings from the magnetometer gets reflected in the LabVIEW of the Windows computer perfectly.
I have DAQmx Base installed and I'm using LabVIEW 2011 on my Mac. I'm using the Lion OS, but I've booted it up in 32-bit. I guess I may have missed some stuff here and there, but I'm lost right now. Please help, thanks!
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gpib communicator in linux
Hi,
I'm newbie in NI product and linux. I have install the NI 488.2 card to linux with GPIB-USB-HS, i want to test the communication between linux enviroment and windows enviroment. Here is my Question:
1. As i know NI have a communicator program for testing communication in windows base but i didn't find it in linux. anyone can help?
2. After install in linux base, i just saw that "I/O Trace" and "NI VISA" icon. Is it i didn't install completely ?
3. GPIB communication can work in difference OS?
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doesn't generate COM port in MAX for USB interfacing
hello there,
i am connecting tektronix scope TDS7104 via FT232R USB UART connector and connection is established successfully. i am connecting usb socket at COM3 port of CPU. problem is that in MAX, it displays" USB RAW" connection as VISA resource name instead of "COM3". and writing manually "COM3" as VISA resource name it geneartes error after passing execution from VISA write block.. give possible solution guyz...
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controlling servos simultaneously
Hi,
I am using a pololu serial 8 micro controller to control 8 servos simultaneously. I am sending commands over the serial port. The approach is to send a 5 byte decimal array that is converted into a string and then sent using the VISA write function. The array being converted is [128 1 2 servo num position] ex: [128 1 2 0 0]. If I combine two commands into 1 array i.e. [128 1 2 0 0 128 1 2 1 0] then I can get 2 servos to move simultaneously, but if I try to combine 3 commands in one array the controller doesn't respond. I have also tried splitting up the arrays and then converting them to strings and then concatenating the string, though I get the same error as before. I was wondering if anyone has tried something similar to this and was able to get it to work. I am using a 30 amp power supply so I dont think I have problem where I am drawing too much current if I try and run the servos simultaneously. Attached is a vi I am using.
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how to control DAQ, GPIB and VISA in other language
Hi there,
I have GBIP, NI PCI6713, NI PCI6711 card installed and we have labview 7. I am just wondering if labview is the only way to control the GBIP and those DAQ cards? Is that possible to use C++ to do that, if so, what needed to be installed and if there is example to do so?
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hey guys...how to programme in LabView to retrive datas coming from different relays through RS485 DB9 port using NI PCI-8431/8 and modbus communication?
hey guys...
how to programme in LabView to retrive datas coming from different relays through RS485 DB9 port using NI PCI-8431/8 and modbus communication?Please drop the block diagram code also if it is possible.
thanks in advance
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duty cycle IVI-driver
Hi,
I drive a Textronix AFG320 with its IVI-driver and Labview. But in this IVI and IVI-Class Driver, there is not Duty Cycle fonction. Why ?
have you got a solution please ?
Thanks,
Adrien
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failure of serial communication
Hi, I have a problem about the serial communication between LabVIEW and a FTDI chip (UART to USB). I cannot read from this serial port. Even no response when I sent *IDN?\n in MAX.
Here is some other information:
I can detect the port (COM4).
I have installed the driver of FTDI chip.
I have called the DLL file.
I can write and read through another software made by the chip company.
When highlighting the data flow and setting an pin point in the output of “VISA read”, it reads zero bytes. It’s like the data I wrote did not enter into VISA.
Could you give me some advice?
Thanks!
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Sorensen XG 40-21 communications crash
Hi,
I inherited a LabView application that controls 30 Sorensen power supplies. It has a communications crash about once a week that is driving me nuts. See the attached image for an overview of the communications architecture. The application communicates with the supplies to turn them on/off and once on, polls constantly for supply status: current, voltage, interlock.
When it crashes, I’m able to stop and restart the LabView app OK, but it doesn’t resolve the problem. A PC reboot is required. I don’t have to touch the supplies to recover. Once the error occurs, it cannot talk to any of the supplies. It starts with an error code: 0xBFFF0000. I've also attached a text file of the IOTrace. It almost seems like the FTDI driver is getting locked up.
As far as I can tell, it doesn't use the Sorensen LabView drivers. I don't know if it's a home rolled version or leveraged from something else. A zip of those are attached as well.
System particulars:
- Windows 7 PC
- FTDI driver 2.8.28.0
- LabView 2011
- Visa 5.1.2
I appreciate any ideas and help.
Kind regards
Mike
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PLC with LabVIEW
Hi
I have a PLC DL06-D0-06DD1 which i need to connect to the PC and then communicate to it through LabVIEW.
As I am new to the PLC I I dont know where to start from? Can any one help me to startup with the PLC?
Thanks
Ninad Regundwar
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Has any one setup communication between hagiosonic stargazer and labview
Hi everyone,
I am working on a project in which I want to use hagiosonic Stargazer sensor that has a TTL interface with Dani robot and I need to set up communication between the sensor and the robot using labview. I understand there is no labview driver for the sensor so I am looking at getting a TTL to serial converter to interface my sensor with the serial port on the robot. I want to know if VISA communication protocol in Labview can be used to setup communication with my robot in order to acquire data from the sensor. Am new to using labview.
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programming manual of chroma 6310
Hello,
Can you please help me to get the programming manual for programmable chroma 6310A series DC Electronic load?.
Thanks and Regards
Rajan
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RsSpecAn Instrument driver shows question mark in palette
I copied the RsSpecAn driver downloaded from R&S to instr.lib and user.lib folder. And found there are question mark in palette. I don't know if it it right.
Any comment or advice would be very appreciated.
Thanks,
Diandi
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Transfering measurement data from 4155 to labview
Hello,
I'm running into some problems with transferring measurements from a HP4155 to labview. I've tried finding the correct commands in the programmers manual but havent found a definitive answer besides the general commands for reading the data on the 4155 itself. Do you just send a write command to the device then a read command to read the data in? I'm having trouble finding examples of how to do this correctly.
Any help would be greatly appreciated,
Konrad
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Communication Protocol with RS485 and Yokogawa UP55A
Hi all, I have input the exact commands according to the UP55A manual and pretty sure the connections are correct but my labview doesnt seems to be responding. Also i refer to this link where i got most of the interface information.
This is the command i send in:
\010101FINF6\03\r
01-STX, 01-adress, 01-CPU No. (fixed at 01), F-600ms response time, INF6-read model, 03-ETX, r-CR
The output string does not display anything.
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No serial COM port available on sbRIO
Dear All,
I use the "Visa Configure Serial Port.vi" from "Instrument I/O->Serial" pallet in my application, to get access to the serial com port on my sbRio-9636.
When running the application the error out from the "Visa Configure Serial Port.vi" states the code -1073807202.
Result by LabView help: "-1073807202: VISA or a code library required by VISA could not be located or loaded. This is usually due to a required driver not being installed on the system."
So I did check out the installed drivers by M&A Explorer and found no NI-VISA drivers installed. I installed the NI-VISA 5.1 from drivers list (Fig1), but still get the same error. Are there further drivers which have to be installed corresponding to COM-Port access by VISA? Currently I only have drivers installed at shown in Fig2.
Thanks in Advance for your help.
Regards,
ar-numa
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