I was trying to find out if the PCI-DIO-32HS will take thermocouple readings?

[edijag]

I have a PCI-DIO-32HS and a SCB-68 connector block. I am trying to figure out if the card will receive the input coming from a thermocouple.

[Dennis_Knutson]

No. That board does digital I/O only. You would need a board with analog inputs.

[Gabi1]

Dennis is right.

however, if you feel like not spending more money on a analog input board, and have hands for a little electronics, here what you can do:

1) use a 16bit D/A converter (eg DAC7744), connected to the card.

2) connect the output to a comparator (LM311),  to compare with your own analog input. you might want to isolate the 2 inputs via INA105.

3) connect the output via a pull up resistor directly to pin 1 of your parallel port.

4) create a small Labview program for making a 16 (or 8 or 4) bit comparison process:

       - create an analog value of 0V (via 16 bit digital card)
       - check if response is true or false (higher or lower than your  analog in) from the parallel port
       - if true, send new analog value of -5V
....check again, 16 times.

you got your analog value. of course this is a relatively slow process, as you have to read the parallel before each time you send the new analog value. yet, it is going to be much faster than a NI-USB 6008 for example. i expect a rate around the KHz at least.