I am trying to use the digital output of a USB6008 to switch a SSR (AQZ205D), and it failed to do so.
I checked the relay, it works fine. I can switch the relay from the 2.5v or 5v of USB6008. How come the digital output cannot do so? Do I miss something here? Thanks much for your thoughts/commens.
Hi
I am using the LabVIEW Communications LTE Framework Application, there are some IO as GPS data, GPS NMEA, GPS NMEA Valid, ect., I find out that the out put of GPS data and GPS NMEA are 8 bits signal, but I don't know what is the the contents of this I/Os, and their update rate. I cannot find user manual on NI help. Can anyone help to explain more details about them?
//Junshi
Hello, I am trying to establish SPI comms with a 657x digital pattern instrument but don't know where to start as far as example VIs. Most resources I found online are from ~2012 and older versions of LabVIEW. Anyone able to point me towards useful resources? I am still a beginner and trying to learn.
I want to use my USB-6525 to switch CAN, but I don't want to use external relays. I plan on using 8 Mbaud with XNET, but I'm unsure if the transistor in the optocouple can handle those speeds.
Does anyone have the specs of that optocoupler or know if this is possible?
I'm looking for the drivers for this board. Thanks.
Need a quote on 2 pieces of PCI-DIO-96 Digital I/O Card please.
Thanks, Rob
Hello everybody.
My main goal is to use python to control some NI devices which I could do it with the NI USB-6501 OEM version but not the 8451.
I used nidaqmx in python and it's not working because I think the NI device is not recognized like the 6501 (not shown in NI device monitor)
I can see it with NI MAX and I renamed it into Dev3.
When I run these python line code for see every device connected it doesn't appear :
import nidaqmx
system = nidaqmx.system.System.local()
for device in system.devices:
devices = str(device)
print(devices)
console return :
Device(name=SimDev1)
I uninstall reinstall several time the NI 845x driver 17 (and 18, I'm using version 17)
I've try also with this http://www.ni.com/example/8911/en/
but according to the exemple 2 I've tried this :
I use -> physicalChannel = "Dev3" , not sure if it's correct but I've tried Dev3/ai0, Dev3/port0/line0 and it always return the same error.
Python 2:
Line 55 : returnValue = dll.DAQmxCreateAIVoltageChan(taskHandle, physicalChannel, channelName, terminalConfig, minVal, maxVal, units, customScaleName)
return : -200220
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019PCxSAM&l=fr-CH
Error -200220 occurred.
Possible reason(s):
Device identifier is invalid.
Python3 :
Line 55 again
return : -200088
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019QMjSAM&l=fr-CH
Error -200088: Task specified is invalid or does not exist.
If anyone can help me with that, because now I'm struggling and ruining out of idea .
Best regards
Adrien
Please be kind enough to teach me how to how make 13.56MHz gate driver signal using myRIO-1900
Hi!
I am trying to generate a Manchester code through a digital output of the PXIe-6612 module.
In the attached VI, I am able to generate a Manchester code over 1ms clock. This means that as each bit is encoded in a low-to-high or high-to-low transition, each bit actually takes 2ms to transmit.
The thing is that I have to generate the signal with a period of 500us --> I would need to execute the loop every 250us.
Which is the best way to do this? I am a newbie in LabView.
Any assistance would be appreciated.
I would like to use the PCIe 6536b card to read some high speed A Quad B signals from an encoder. The signals are differential. A+, A-,B+, B- and a differential clock signal. I cannot find how to connect things when the signals are differential rather than single ended. Do I need additional hardware to convert to single ended signals or can the 6536b handle these signals on it's own? Thanks
Hello
I have a NI USB 8452 and I need to run several different scripts on a while loop until the user presses the stop button for the loop.
I load the first script and run it, then I load the second script and run it and so on.....
After a while I got the next error:
Error -301703 occurred at NI-845x I2C Script Read.vi:2640001
Possible reason(s):
NI-845x: The number of reads contained in your script exceeds the maximum number of scripts this version of the driver supports. Break your script into multiple smaller scripts.
How can I unload the first script in order to load the second script, and so on?
If we open and close the connection to the NI USB 8452 every time we run a different script works but slows down the measurement system.
Any comment is really appreciated.
Thanks
David DLC
PCIE7852与SCB-68连接，SCB-68的接线口要如何接线才能通过LABVIEW FPGA控制模拟信号的输入输出？能否提供比较详细的接线图和代码示例图？我用的是R系列多功能RIO设备驱动。以上实际包含了两个问题，时间略紧，请求各路大神指导一下，谢谢！
I am using PXIe-6537 to generate digital signals. I am unable to synchronize the signal timings.
For digital output through PXIe-6537 DAQmx is used.
Please provide the information how to synchronise the digital signals
Dear all,
I found a USB-6210 in my lab and I'm trying to determine if this device will fit my requirements.
Unfortunately, I did not find the answer in the documentation.
I would like to generate a continuous pulse train at a specific frequency (which is low, 10 to 1000 Hz) with a duty cicle that I can set.Could you help me please?
Best regards.
Hello,
I am including a dll file for a digital I/O module.The DLL file works perfectly under VB.NET and C #.
But under LabView I have problems.
The TCP/IP connection does not stay upright, that means.it breaks as soon as a connection is established.
The DLL file also has an integrated KeepAlive function, but this is not influenced by the outside.
Who can help me to solve the problem?
thank you in advance
Natalie
Hi Everybody,
I am using Labview FPGA modules. I want to trigger 5V relay. I have got a NI-9401. This is 8 channel 5V TTL digital out module. But my relays isn't triggering with TTL signal.
Briefly, How Can I Use my TTL Signal to Generate a non-TTL Digital Signal?
Have a nice day!
I have an outdoor Christmas tree which uses 16 LED rope lights and 4 same rope lights formed star with 8 sides on top (see attached picture). I setup/use it every year, but only either on or off all together.
So I am thinking make it a little bit more interesting this year: use a USB-6501 to control it. I can use at least 20 digital out to drive 20 solid state relays and keep the remaining 4 as digital in for control. I will make some time sequence to make lights move/dance and use a loop to cycle. The controls (push buttons) can be used to stop at one particular sequence I like or pick several sequences and loop among them, change time constant and so on.
But since the last time I used LabView was 30 years ago, I need some help to set this box up. Such as where to find some examples, especially how to achieve best visual effect with time constant, etc.
If you have done anything similar, please point me to the right direction. Thanks!
