Change the onstatechange
function like so:
jQuery("#Slider2").slider({
from: 0,
to: 100,
step: 1,
round: 1,
skin: 'plastic',
limits:true,
heterogeneity: ['90/50'],
onstatechange:function(value){console.log(value)},
});
You were creating a new slider with default values in your code in the onstatechange
function.