Describes control functions and their coded representations for use in a 7-bit code, and 8-bit code or extensions, if the code is structured in accordance with ISO 2022. This International Standard specifies a CO set, a C1 set, control functions derived therefrom and a number of independent control functions. conformance, normative references, notation and definitions, representation, device concepts, modes, control functions, transformation between 7-bit and 8-bit coded representations, formator functions and editor functions, coding examples, text composition considerations, implementation-dependent features, differences between this second edition of ISO 6429 and ISO 6429: 1983 and several tables.