PCI 6512

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Hi,

I'm completely new to control applications, and trying to find my feet rapidly. However, I seem to have stumbled at the first hurdle.

I have a PCI-6512 (64 Source Outputs) card, and am wanting to power 3 actuated pressure valves - each requiring ~15-30 VDC. Using MAX I've tried to generate any signal I can, but have so far come up with nothing. I've selected digital output (port or line), and chosen a channel to send the signal from, but as I get nothing from the screw terminals I guess I'm doing something wrong, or going about this in completely the wrong way. I also have a PCI-6220 card, where this process does work, but as I need the higher voltage signal, this is not ideal, and I assume is not the type of signal I want to generate.

Would i be correct in thinking that for the higher voltage outputs, TTL is not what I want to use?

I presume I've missed something really obvious here, and just need some basic advice from an experienced user! All advice happily received!

Thanks

[Jochen]

Hi,

yes in fact the answer is quite simple. The PCI-6512 doesn't output a voltage by itself but it switches the voltage of an external power supply that you need to connect to the PxVcc terminals of each bank. Please refer to the manual for further information.

Kind regards,

Jochen Klier
National Instruments