Provides rules and symbols for the preparation of descriptions of the function and behaviour of control systems by establishing an implementation-independent graphical representation. Provides a general process approach to describing control functions and may be applied to non-electrical systems. Method of representation is an industrial application of 'Petri nets'. This Standard is identical with and has been reproduced from IEC 848:1988, including Corrigendum (1990).

DR 95238

IEC 60848 Ed. 1.0 - Identical