Documentation issue statusVersionModifications3.1.0Update chapter “Technical data”Chapter “Cabling of power supply” addedUpdate structure3.0Update chapter “Technical data” and “Dimensions”Chapter “Disposal” addedUpdate structure2.9Update chapter “Product description”Update chapter “Diagnosis”Update chapter “Firmware compatibility”2.8Update chapter “Introduction”Update structure2.7Update chapter Technical DataUpdate structure2.6CU1521-0020 addedUpdate chapter “Commissioning”Update structure2.5Update chapter “Commissioning”Update structure2.4Update chapter “Notes on converters with RJ45 fiber-optic connection”Update structure2.3Update chapter “Commissioning”Update Technical DataUpdate structure2.2Update Technical DataUpdate structure2.1Update Technical DataUpdate structure2.0Migration1.2Update chapter "Technical data"1.1Update chapter "Application notes"1.0Addenda and 1st public issue0.3Addenda0.2Addenda0.1Preliminary version