IEC 61499-4 Revised
IEC 61499-4:2005
Function blocks - Part 4: Rules for compliance profiles
defines rules for the development of compliance profiles which specify the features of IEC 61499-1 and 61499-2 to be implemented in order to promote the following attributes of IEC 61499-based systems, devices and software tools:
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A more recent version of this publication exists:
IEC 61499-4:2013