174383a9_r_Control_v1_1___Documentation__Key
[Description] Specifies initial value of the slider. The value will be applied if the slider can't find the input box at the initialization time (i.e. it is defined below in the HTML file) or the input box is blank. This parameter is optional. If slider can't detect the initial value it will default to n_minValue. If n_step is specified then value will be rounded to closest step. [Accepted Values] number between n_maxValue and n_minValue [Key] 
n_value
Tigra Slider Control v1.1 - Documentation
Key