Dear Sir/Madam, I have a project as follows : supervise three air compessors of AtlasCopco via Profibus. Atlas have supplied the Combox-P to communicate 3nos compressor to Profibus over tsx premium 57 353 A. I have manual(9820_3582_03__User_Guide_MKIV_Profibus_Edition_06),Though my slave connections are ok but i could not fetch any data. Also i have asked support from Atlas but unfortunately they don’t know, I want to know how to know the number of recorded data and the GSD file,and the way to program the 3 compressors,thanks:)