Programmable control for user installation

摘要

The programmable control has a digital display (14) and an input keyboard (13) which are connected to a processor (19). The processor (19) drives a speech synthesiser (22) in dependence on the actuation of the input keyboard (13). The synthesiser can output key words (20) in a verbally phonetic manner, and these are input into a read memory (21).The input keyboard (13) may be connected to the synthesiser (22) to output the key words via an electroacoustic convertor, during the actual operation or during the system standby condition. The processor (19) may be connected as a comparator joined to the convertor and to the keyboard