Analouge Inputs

Hi all,
I am building a project for collage and the plc I am using is a Matsu****a. It does not have any anlouge inputs but has some sort of pluse counter input. I am not familer with it and I was wondering if anyone knows can It be used as as a analouge input

Who took the sh*t out of Matsu$hita? I never knew some of those Japanese names were so controversial.........

GE markets a series of devices that convert analog to pulses as the MSP product line with some neat features. Omega Engineering and Calex also sell analog to frequency conversion for a single channel, but you may need a high speed input for that one.