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PKS 2155-304 is one of the brightest blazar located in Southern Hemisphere,monitored with H.E.S.S. since the first light of the experiment. Here we reportmultiwavelength monitoring observations collected during the period of2015-2016 with H.E.S.S.,Fermi-LAT, Swift-XRT, Swift-UVOT, and ATOM. Two yearsof multiwavelength data with very good temporal coverage allowed tocharacterize broadband emission observed from the region of PKS 2155-304 andstudy potential multifrequency correlations. During the period of monitoring,PKS 2155-304 revealed complex multiwavelength variability with two outburstscharacterized by completely different multiband properties. The 2015 activityof the blazar is characterized by a flare observed at all wavelengths studied.The broadband emission observed during the outburst is well correlated withoutany time lags. Contrary to 2015, in 2016, only orphan outburst in the opticaland ultraviolet wavelengths was observed. Such an orphan activity is reportedfor the first time for the blazar PKS 2155-304.

H.E.S.S. Monitoring of PKS 2155-304 in 2015 and 2016