Testing Analog Input in a PCI-6013

[eldiegoefe]

Hello. I´m using a PCI-6013 with NI-DAQmx 9.1.1 and Labview 8.2 (on trial) under winXP. The board suffered a water immersion during a flood but was cleaned up, recognized by WinXP and NIDAQmx.

I run the Measurement & Automation Explorer, and use the test pannels under NI-6013 "Dev1" option within "Device and Interfaces". There, I can see that the digital and clock output work perfectly (I can change state of the digitals, and duty cycle and frequency on the clock). The problem arises when trying to measure an analog voltage. I tried on many if not all analog channels using NRSE and differential modes (switching the connections accordingly).

The signal comes from a signal generator (4Hz, squares and sines, 5Vpp) through a CB-68LPR connector.

I can only see something comparable to the input singal when using differential input on AI7(signal connected through J57 and J23), but the signal I see shows up with 100 mVpp instead of 5 Vpp (I can see changes in shape whenever I switch between sine, square, ramp...). I also tried connecting J23 to AISENSE (J62) and AIGND (J67), to avoid floating source problems. The same happens when entering and setting up the acquisiton through the Data Neigbourhood in the Measurement & Automation Explorer. I´m using the signal input range in different ranges, tried with -5 to +5, -1 to +1, -10 to +10... When setting up NIDAQmx Tasks I choose different samples to read (100, 1000, 10000) and rates (100Hz, 1KHz,...) combinations. Anyway the input signal is always 4 Hz. I checked the input signal with an osciloscope and I can perfectly see it.

Is it possible to have the analog input broken while the digital and general purpose clock outputs are OK? Is there any trick to signal connections that I should be aware of? Thanks in advance for any orientation!

[KateB]

Of course, you could have analog input while another part of the card works fine. I'd recommend contacting NI local representative for repair.

[MarisolM]

Hola Diego;

Respondiendo a tu pregunta, las entradas analogicas tienen un convertidor analógico digital que no es compartido con las salidas y entradas digitales; si este componente se daña, puede ocurrir lo que te está pasando; que las DIO si funcionen pero las analógicas no.

Para asegurar que la tarjeta está dañada y antes de levantar una órden de reparación; te sugeriría realizaras un "Self-Test" dentro de MAX y verificaras desde los páneles de prueba si puedes obtener una señal, aunque sea DC en cualquier canal.

En caso de que no, puedes levantar una órden RMA o de reparación para que tu tarjeta sea arreglada.
Si la tarjeta no está en garantía se te cobraría la reparación, entonces quizá sería más conveniente adquirir una tarjeta nueva más moderna.

Espero esta información te sea útil

Exito

[eldiegoefe · Accepted solution]

Thank you both, KateB and MarisolM for your answers.

Hice varias pruebas con señales DC y con señales senoidales, instalando la placa en dos computadoras diferentes, y no obtengo resultados positivos, a pesar de que el self-test sale bien. Parece que la placa realmente está fallando.

I did many tests with DC and senoidal signals, installing the board in two different computers, without positive results, even though the self-test is OK. It seems that the board is really malfunctioning.

Ya pedí cotización por su reparación. Gracias!