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使用ADLINK PCIe-RTV24影像擷取卡所提供的VI
請問一下，我使用ADLINK PCIe-RTV24影像擷取卡所提供的VI時，出現了error該怎麼解決，另外就是有其他方法能夠利用LabVIEW來得到擷取卡的影像呢?
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Control SR245 to scan input ports via RS232
Hi guys,
SR245 is said to have the ability to independently read the input ports (i.e., 1 and 2) and store a series of data point using scan command (see manual page 44), which can acquire data up to 2.1 kHz. I'm trying to control SR245 to scan input ports 1 for 50 - 500 trigger event (trigger rate at 20 Hz). I wrote a test VI (attached) to send scan command and read the stored data. The program works for the first run, but rerunning the program generates the same output, e.g., I changed the scan command from SC1:50 to SC1:20 or SC1:100 and reran it, and still got the same data output (50 data points instead of 20 or 100). The program seems only work once every time I reboot the SR245, which is very odd. I'm clearly missing something, but what's the problem?
I'm looking forward for your help. Appreciate it!!!
PS. The manual can be found at https://www.thinksrs.com/downloads/pdfs/manuals/Boxcarm.pdf
The LabView driver - 'SR245250.lvpoj'- is available on NI website http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=1282
Somehow my SR245 cannot work with GPIB, so I have to use RS232. Unfortunately, the driver that support serial port doesn't have the scan function with external trigger.
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How to get a quote / Order of GPIB-USB-HS+ for EGYPT considering that Online quote didnt work because the mentioned NI Phones in Egypt disabled
I tried this process online, but it ask me to FAX it to +961 1-334 300
UAE FAX no is terminated as will as NI Phone No. in Egypt 0112190002 /0112190003
Please advice how to get this quote?
Thanks
Sami Makary
+20 122 219 4774
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keithley 4200 drivers
hello
i have just connected my keithley 4200 via GPIB cable and I'm getting this message:
windows does not have a driver associated with your device.
any driver that i could use please help
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Modbus for temperature controller
Dear all,
I am new with Labview, hence, my apologies for any stupid questions.
I have a temperature controoler Ascon KX03 that can communicate trhough a serial port with Modbus protocol (I attached the datasheet, in particular at pag. 9 there is an example of the commands to get some information). As first step I connected the controller using a SerialTec software that works fine, so I am able to establish a communication and get, as instance, the current temperature value. I attach the screenshot with the string that SerialTec is sending to receive the temperature value. I would like to read using Labview, but I am trying without success. I attach my simple IV that is not giving any results. Actually, I don't know how to send a string of command (byte and words) to the controller. Sorry if it is a stupid question: how can I send the string of command to the controller to receive and answer and record the answer, please?
Thank you for your help
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Failing DMM self-test with -223911
When I run self-test (in NI MAX) for my PXI-4605, I get a -223911 error. The documentation states that this is a naming issue.
I tried the rename it, save, rename again, save trick. Didn't work. Strangely, when I ran self-test with a bogus name (e.g. DMMxxx), the self-test passed.
When I try to control the DMM in my code, I get an error (-1074118656 - device not supported with this version...).
For the -223911 error, what name is not correct? The name of the device in MAX under Devices and Interfaces? Does this have to match something?
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cRIO, PSUs, MFCs connected via Ethernet
Hi,
I am trying to use Labview to control and save data from several power supply units (PSUs) and mass flow controllers (MFCs).
In particular, I am using a cRIO 9031, an Ethernet switch (TP-link), PSUs (Sorensen and Keysight) and MFCs (Bronkhorst).
I'd like to connect the cRIO to the Ethernet switch and then use the switch to connect the other hardware.
Can you please suggest me how to correctly configure the setup?
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Programmable Temp/RH Sensor
This is silly problem to have, but apparently it is a problem. I need, for a medical device manufacturing application:
- a programmable, calibrate-able temperature + relative humidity meter.
I can't find one. Any vendor that offers something close has closed software and won't provide an API, even if it's a basic RS232 unit. We could sniff the port so to speak, but don't want to waste SW development dollars and want something factory supported.
We want something like this Vaisala unit, but they are in the "only our closed software" category...
Does anyone know of a good unit?
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VOLTAGE MEASUREMENT IN MS WITH KEITHLEY 2182A INSTRUMENT
hello everyone ,i have i probleme i can measure the voltage white KEITHLEY 2182A INSTRUMENT in ms , i have a current pulse width 10 ms and i want mesure the voltage,i made connection gpib with intrument ,i mesure the voltage with current pulse 500 ms ,is not enough for me,pleaze help me.
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Instrument not found
Hi!
I have an MKS 946 Vacuum System Controller, and I have LABVIEW 20.0.0in my computer. I have connected the device via serial port, I have installed the NI-serial driver. Still I cannot find the instrument on NI-MAX. I have tried several methods that I found from this discussion group, still I am unable to find my instrument. Moreover, when I open NI-Troubleshooter, it says "hardware presence is not verified". Please help. 
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NI-488.2 old driver for window7
Does anyone know where I can get NI-488.2 old drivers for window 7? It's supposed to be NI-488.2 2.8,3.0, or 3.1...
I will appreciate if anyone can share a link for download! Thank you!
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Serial-Data LVDT
Hello,
I have a LVDT connected to my COM1 serial port. This gives me around 7000 readings when I read the COM Port. It outputs a string like "N +0.642...." to signify the flatness of a section. The problem is that I am getting a string (Read Data) like shown in the VI and am not able to convert it into an array of readings in DBL format, which is required for further processing.
I have attached the VI that I am using.
Thanks,
James
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Whether the analog output can generate PWM waves
Whether the analog output can generate PWM waves by generate a square wave
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Problem reading SCPI SYST:ERR? for Keysight 34465A
I wrote a Labview app for a Keithley 34465A multimeter to be able to measure the current of a short biphasic current pulse. Initially I started with the NI drivers that are available, but they did not work. I could not even run the simple example VI to read a single measurement. The VI would time out on a read (error code -1073807339) after writing the SYST:ERR? command, and the next time I ran it, I would get error code -1073807360 on the Visa Open. After that, If I clicked on the VISA resource name control to refresh the device list it would just hang until I unplugged the 34465A from the USB. I also had to power cycle the 34465A or Windows would not recognize the device when I plugged it back in.
After working with the system half the day, and trying various commands using the NI-VISA Interactive Control application, I ended up abandoning the NI driver VIs (which were having issues with the same read after a SYS:ERR? write) and brute-forcing with the attached VI, which was working perfectly on Friday. I was able to repeatedly run the VI with no issues. My Errors array indicator would show +0, No Errors. I powered off all of the equipment for the weekend.
Come Monday, I powered everything up and tried to run the VI again. I'm back to the same issue I had on Friday where I get a timeout on the VISA Read after a Write of SYST:ERR?. Same situation, where I end up having to exit LabVIEW, shut off the 34465A, and start everything back up. I have no idea why this VI is failing, and why the same VI was working on Friday. Perhaps there was something I did in the interactive control app that fixed some problem?
FYI, I'm running LV17 with NI-VISA 19.2 running under Windows 7 Pro.
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Serial Data - String
Hello,
I have a LVDT connected to my COM1 serial port. This gives me around 7000 readings when I read the COM Port. It outputs a string like "N +0.642...." to signify the flatness of a section. The problem is that I am getting a string (Read Data) like shown in the VI and am not able to convert it into an array of readings in DBL format, which is required for further processing.
I have attached the VI that I am using.
Thanks,
James
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Newbie gpib question
I hope this is not too stupid a question, but I want to start as simple as possible.
I control other (i.e., Tek, HP) GPIB-enabled instruments using a Prologix usb-to-GPIB
dongle and send ***simple ascii strings***. E.g., something like ":channel1:input 50Ohm"
to set the input impedance of my HP scope. The Prologix dongle has a command ++addr <n>
to direct commands to an instrument with GPIB address n where I have previously set the
address of the instrument with dip switches.
There are no "drivers" involved. I just send ascii strings to/from the addressed instrument.
I have a pxi frame with an 8212 card and a dmm card 4060. I want some help on a similar
scheme for talking to the dmm in the pxi frame.
1. How do I set the address of the frame?
2. Can I send/receive simple ascii strings to the addressed instrument using my Prologix converter?
Thanks so much!
Anxious to get started ...
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Using a lantronix uds2100 to read out a Granville-Philips 350 Gauge Controller
Hello,
I hope I choose the right board for my problem.
I try to read out the pressure of a vacuum which will messure by a Granville-Philips 350 Gauge Controller. As an Adapter (serial to ethernet) I should use the Lantronix UDS2100.
For the first step, there should be a direct connection between this adapter and a laptop to read out the pressure data.
I don't have a lot experience with Labview and know I have a few problems I can't solve.
(1) I installed the DeviceInstaller for the UDS. The software show the device. When I choose the device there's an Error:
"Communications error. The configuration was not received from the device.".
After this the Device Info shows an Error too (see screenshort).
I tried to upgrade the Firmeware, but it doesn't work.
(2) The UDS is not show in de DeviceManager of Windows.
(3) I tried to add the device into MAX as a VISA TCP/IP. The device won't found. When I use the ip-adress it doesn't work too. (see NIMAX screenshort).
Maybe my problemes are more based on the UDS2100 than on NI, but I hope there is someone that can help me.
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NI-VISA仪器操作时超时
My instrument is Aglient 8153A, and the driver, VISA driver, and NI-488.2 have been installed. When I test the instrument on the instrument test panel in NI MAX, the address of the instrument can be displayed: GPIB0::5::INSTR, but the input Command symbol: *IDN?\n always prompts that the operation timed out. I am using the GPIB-USB bus, so I follow https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019L3mSAE&l=zh-CN but still can’t solve; However,there is also an Aglient 8163B I have been able to test successfully, can communicate normally, and perform instrument joint debugging. Therefore, I want to ask me what went wrong in this situation
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Ni8452 I2CSlave doesn't react to RepeatedStart after master reads data from Slave
Hi All,
I am Using the Ni8452 with the C-Api in order to emulate an i2c-slave device (For now this is an EEProm). Currently I am facing the issue that the NI-8452 Slave stops working correctly after i get a repeated start condition from the master in a specific situation. It happens only when the master wants to write something to the slave with a repeated start condition after he reads from the slave.
Furthermore i get no "WriteCompleteEvent" after the "DataRequestedEvent" in the API when the repeated start condition occurs. Instead a "NoEvent"-Event follows the "DataRequestedEvent".
Additionally the green LED of the ni-8452-Device stops blinking and indicates that the slave is not running (but i can Stop and start the slave again with the ni845xI2cSlaveStop() and ni845xI2cSlaveStart() - Functions without any error(returncode=0).
Additionally no error occurs in the API when i call ni845xI2cSlaveWaitForEvent() while the green LED is not blinking(i2c-slave not active), after the above condition(repeated start) occurs and the LED stopped blinking. In all other situations the api shows an Error(returncode!=0) when trying to execute ni845xI2cSlaveWaitForEvent() when LED is not blinking respectively not started.
Is this(Repeated Start Condition(with write to the slave) directly after master reads from the slave) supported?
Best Regards
jw97
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