| 摘要 |
A circuit arrangement for the selective control of functional modules (15) should be designed for providing for a rapid and liberal selection of individual ones of the functional modules (15) or particular module groups with little requirement for data transmission with little circuit expenditure for a bus system (XY). For this purpose, it is preferably provided to connect matrix column lines (Xi) and row lines (Yi) via signal transmitters in the form of interrupter switches (13xi, 13yi) to the supply lines (X, Y) of a central power source (12) and to feed the functional modules (15ij) via the areas of intersection (ij) of the matrix lines (Xi, Yj). When the circuit to the power source (12) is interrupted for a short time at a time- defined interval (ij) on one matrix line (Xi) and on the other matrix line (Yj), this selects exactly the functional module (15ij) which is switched on via this area of intersection (ij) and interrogates the second supply interruption after exactly this time interval (tij). A transmission of data from the functional module (15ij) to a connected computer is possible by means of a method of the same type. <IMAGE> |
