Scripting language support in SCADA systems significantly enhances their flexibility in performing diverse industry automation functions. Although SCADA vendors do provide rich scripting support in their automation solutions, development and integration aspects of SCADA Script Component are rarely presented in the contemporary research literature. This paper proposes a novel architecture of Script Component in SCADA systems to perform miscellaneous industry automation functions through any scripting language of choice. This architecture is validated by implementing and integrating Script component in a large scale SCADA automation solution. Moreover, series of experiments are performed to validate the working of Script Component after its integration. Empirical results prove that Script Component is capable to perform various SCADA functions through JavaScript by providing enhanced flexibility and simplicity.