DI-194RS plug-in

[vc1234]

I've attached the dll and the source code for the $25 DATAQ 194rs data acquisition module ( http://www.dataq.com/194.htm ). The module contains four analog/digital conversion channels and three digital inputs. The plug-in reads all the channels, but I did not bother displaying data from digital channels -- modifications are trivial if you want to display those as well.

The ADC channels accept +/- 10 volts DC. The 194RS can be modified by removing some resistors so that the input range would be 0-10 Vdc or 0-5 Vdc if necessary.

The module can be used to sense voltage in any kind of application where such need exists. The ADC conversion rate is not very high (hardware limits it to 240 cps). In the plug-in, I limit the acquisition rate to 1cps (once a second).