controlling current output of Lightwave LDX-3207
Hi, I want to use the vi to controll the output of my Lightwave LDX-3207. But, when I set my parameter ( current 10mA or 1mA), the output is always 0. I don't know what's wrong with that. Can...
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Modbus NI VISA Serial - Tx%2FRx Error
Hi, I am using Virtual Serial Port emulator to create a pair of 2 COM ports and to connect them.I am using the below LabVIEW VI to transmit Mod bus data and Receive Mod bus response using VISA serial...
View Articlereceiving SMS using GSM module in LabVIEW
Hi ...I am Communicating the GSM module in VI. I can found the solution for sending the SMS. But i am having the trouble in read the SMS in VI. I tried more type of models. When I am running the VI,...
View Articlemax
Is there a way to set privileges in MAX so that user can only access the test panels?? I just want to allow someone to use the DMM softpanel and relay test panel in max as a troubleshooting aid. Just...
View ArticleLabVIEW crashes the PC in time when it reads Visa serial
Hi, I am new programming in LabVIEW and I need to do a program able to read some parameters from the devices, keep the data in a file, display it in a graph… etc. From the example “advanced serial...
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NI MAX couldn't read devices properly.
I have a NI USB-9213 for thermocouple temperature input. But the signal express just could not find it, (no devices available). But the NI MAX could find the device. The only error is when I open the...
View ArticleStatic IPA for cdaq
I have a cDAQ 9181 chassis that I can communicate with over DHCP IPA. However, I need to assign the 9181 a static IPA (assigned by our network admin). When I use MAX to try to change the IPA to...
View ArticleRecover from VISA connection loss
Hi, my LabView application is to set a power supply, enable output, and monitor volt and current using VISA based drivers download from NI. I would like to know if there is a way to recover VISA...
View ArticleI need a windows 7 driver for the PCI 8335
I bought a PXI system years ago, controlled by a very old computer via a fiber optic link with a pci card. I want to use updated computers, and bought a PCI extension that I can use with laptops, but...
View ArticleSending pulses through the serial port
Hello everybody. I need to send pulses with frequency of 1 Hz, with time at a high level 5us (microseconds) for about 30 minutes at pin 3 of the serial port (Tx). Already built the circuit RS232 to TTL...
View Articleurgent GPIB crash
Hellothis morning we had a worse crash of one of our systems. During the startup the computer hangs and has to be restarted several times. When it is started finally, the CVI software do not work. We...
View ArticleUnable to remote control Tektronix TBS1062 with USB Interface
Hi, I have recently downloaded IVI Driver for Tektronix TBS1062 from national instruments. I am using USB communication.I have configured the instrument in NI MAX and can identify the instrument...
View ArticleTI AFE4490 on labview
Hello,I am currently working on the following project:With an acquisition card (AFE4490) manufactured by TI (they don't broadcast labview source code , or the driver for use directly ), I should be...
View Articleconnect Tektronix DPO 2024, Error-1074000000 occurred
Hi: I connect a Tektronix DPO 2024 With PC via USB, use sample code:"Tektronix DPO MSO 2000 4000 Series Acquire Digital Voltmeter Example.vi",But "Error -1074000000 occurred at Tektronix DPO MSO 2000...
View ArticleUSB based devices
Recently in one of the meetings i attended for designing test system, i was told USB is not reliable for long duration testing( more than 12 hours) . Hence we cannot pick devices that do not work on...
View ArticleTektronix TBS1062 goes to default set up
Hi, I am a newbie to IVI programming. I am currently configuring the Basic, Channels and Trigger settings on the IVI Scope step and everytime I configure the scope goes to a default set up. Am i...
View ArticleHow can I get MAX in my virtual machine to recognize my DAQ?
I am trying to control a DAQ through a windows XP virtual machine. The error message I recieve is as follows: Error 200220 occurred at DAQ assistant Possible Reason(s)Device identifier is not valid...
View ArticleOmega CN8202 Temperature Control Labview Question (Serial Port, RS-232...
I am a complete novice with Labview, as in I just started fidling with it today, so sorry if any of these questions are obvious. I will be working with an Omega CN8202 temperature controller. As noted...
View ArticleInitialize array with NaN
For a data recording, graphing and analyzing VI, why should I initialize the arrays to NaN after reading the data from files. I figured it is for synchronization. Can anyone give a detailed explanation?
View ArticleConverting a "differential" connection to an "RSE" connection
Hi, I am dealing with a measurement system that previously used a "RSE" connection to measure certain voltage signals and it worked ok. Now there's a new DAQ (NI USB 6353) and the "differential"...
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