  We report on soft X-ray observations of the Seyfert 1 galaxy MCG-6-30-15 with
the Low and Medium Energy Concentrator Spectrometers on board BeppoSAX. The
time averaged 0.1-4 keV spectrum shows evidence for a complex warm absorber.
K-edges of highly ionized oxygen (O vii and O viii) can only partly describe
the soft X-ray spectrum below 2 keV. A spectral variability study reveales
large and rapid changes in absorption at the energy of the O viii K-edge and in
the continuum shape and count rate. These fluctuations are not simply
correlated.
