Visible matters exist mostly in highly charged states. To analyze those, CHEA (Centre for High Energy Astrophysics) built an Electron Beam Ion Trap (EBIT) to acquire spectral data of individual elements in their highly charged states. Preliminary experiments on connecting the EBIT with the PAL-XFEL have been conducted over the two R&D beam times. During these shifts, we study the highly charged argon with the aid of a monochromatic photon beam from the PAL-XFEL (Pohang Accelerator Laboratory X-ray Free Electron Laser). In this work, we demonstrate argon spectroscopic measurements as well as preparation for our final target experiments with iron.