IEC 61784-1:2019 (E) defines a set of protocol specific communication profiles based primarily on the IEC 61158 series, to be used in the design of devices involved in communications in factory manufacturing and process control. This fifth edition cancels and replaces the fourth edition published in 2014 it constitutes a technical revision. The main changes are: • update of the dated references to the IEC 61158 series, to IEC 61784 2, to the IEC 61784 3 series, to the IEC 61784-5 series and to IEC 61918 throughout the document; • update of selection tables CPF 2, CPF 4 and CPF 8