IEC 60770-3:2014 specifies methods for: - assessment of the functionality of intelligent transmitters; - testing the operational behaviour, as well as the static and dynamic performance of an intelligent transmitter and methodologies for determining the reliability and diagnostic features used to detect malfunctions; - determining the communication capabilities of the intelligent transmitters in a communication network. This second edition cancels and replaces the first edition published in 2006 and constitutes a technical revision. It includes the following changes: - Introduction. - Terms and definitions: all definitions already present in IEC 60050 and in IEC 61298 have been deleted. - All parts: added concept of wireless transmitters.