what hardware should I use to transmit signal to a controller from computer

[GoKu25]

Hi,

I have a Labview application running on my laptop and it acquires data from a UWB receiver to measure distance from transmitter via USB. There are 3 zones  safe, warning and Danger . according to the distance between them like the stack light tower(predominantly Red, Yellow and Green) used in Industries for status monitoring. Now I would like to transmit the control signal to a real light tower(I dont have it yet but could be 30VDC) from my computer.

Which hardware should I use for this? Is a Bus powered DAQ suitable for outputting signals or a RIO device?

[Hatef.fouladi]

you can use any DAQ that have analog output combination of use one signal conditioner or amplifier to reach your desired voltage

[AnalogKid2DigitalMan]

I would think you would want digital outputs, one each for each light in the tower.

The USB-6525 has SSR digital outputs rated up to 60VDC at 500mA.

http://sine.ni.com/nips/cds/view/p/lang/en/nid/203343

-AK2DM

[Hatef.fouladi]

beas on your light tower you can use analog or digital output as AnalogKid2Digital man told