HSDIO digital data acquisition problem – losing data
Hi! I have to make a simple project that acquires bits from a single digital line (2Mbps), searching for a certain 88bit pattern (BARKER) and after finding it stores 8000 bits from the channel in a txt...
View ArticleNI 9401 all line output problem
Hi The attachment code is used as subvi .iam getting error when i use it as sub VI. Based on the input condition the output of the particular line will become high and i need to generate all the line...
View Article200565 error
I'm trying to write a sequence of signals to a port on my USB-6343. Two of the signals are fixed and the other is an array of binary values. I am not getting any output on the DAQ port pins...
View ArticleConnecting the SCB-100 to a Solid State Relay
Hey everyone, I am trying to hook up a solid state relay to the SCB-100 which is connected to a PXI 6515 device. I was just wondering where I can purchase the connecting wire that is ideal for this...
View ArticleHow to increase the digital output logic level in NI USB 6341
Hi I WANT TO INCREASE THE DIGITAL OUTPUT LEVEL IN NI 6341. I AM TRYING TO DRIVE AN LED BUT THE CURRENT OUTPUT IS 2.7 V HENCE THE BRIGHTNESS OF THE LED IS LESS. HOW CAN I CHANGE THE DIGITAL OUTPUT LEVEL...
View ArticleHow to send a strem using Ni USB 6212
Hi,I have an NI USB 6212 card and I want to send a stream of bits at a fixed clock rate (2KHz) on two ditital lines. The stream is stored as a uint8 vector in a buffer. Length is less than 2K.I'm using...
View ArticleWriting and reading data using the DAQAssist and a Compaq Rio
I am writing and reading data using the DAQAssist and a Compaq Rio. I need to compare the data written to the data being read. I am having trouble creating a comparasion due to the delay in the data...
View ArticleDigital voltage range limit (less V)
Hi My first post here.In the Datasheet and in the examples i was not able to find a solution for my problem: - output voltage digital 0-5V <-> input FPGA (3V3)because i am communicating with a...
View ArticleCan I order longer Jack Post Screws for the cable assembly SH100-100-F
I need longer jack post screws for the cable assembly SH100-100-F, approximately 0.375 longer than the standard ones that come with the cable, in order to connect to the DIO Board installed in my PC...
View ArticleNI PXI 6289 Digital Output Solid State Relay
Hi, I'm attempting to control a pull-type mechanical solenoid using a sold state relay connected to my PXI 6289. I currently have the SSR connected to Port 1 line 4 and am using the code provided here...
View ArticlePXI-6515
I have a failure on Port 6 of my PXI-6515 caused, I believe, by pins 49 & 50 on the cable lead from my SBC-100 being out of line. They therefore did not engage with the PXI card properly shorting...
View ArticlePXI-6537 Digital Logic Family voltages are not changing.
I have an application that is using a PXI-1085 chassis with a PXI-6537 x 2 that will need ports at a different logic levels of 2.5V and 3.3V. After setting up a test application to prove i can change...
View ArticleGeneration rate or onboard memory
Hi, im trying to generate digital signal with pxie 6544. I read in datasheet, that this device has onboard memory size 1Mbit/channel. In the other part of the datasheet, it says, maximum data rate per...
View ArticleDigital output signal is only 1.3 V
I have a SCB-68 I/O device interfaced with at NI PCIe-7841R. When i output a digital signal i only get 1.3V. Is there any way to output a higher voltage like 3.3V or 5V?
View Articlewhere can i find an sr flip
Im quite new to electronics i just want to experiment with basic sr, jk, d and t type flip flops. However, all i can find on multisim is chips with a mind boggling number of inputs I dont understand....
View Articleproblem with read count
I am trying to receive 2500bytes via serial port and plot it on a chart, after sending character "S" to the sender device.I have set the "read count" to 2500 so it is supposed to receive 2500 byte then...
View ArticleOutput no change
Good morning, I am new with DAQmx and I use the Cont Write Dig Port-Int Clk.vi example in order to understand how it works. My board is USB-6343 OEM I changed the example above with my configuration...
View ArticleNI9411 wrong frequency measurement of flow sensors / 24 impulse signals
Hello Ni Forum,I already searched for similar problems, but haven't found anything helpful. So I'm posting our problem here. I'm apologizing in advance for bad english, it's not my mother tongueWe're...
View ArticleHardware timed digital output (NI PCIe-6351 + BNC-2111)
Hi, I am trying to output two digital pulse trains to act as a TTL signal controlling two lasers. To do this, I first generate a hardware counter on Dev1/ctr0 at a user defined frequency. This counter...
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