ADDRESS, INSTRUCTION AND/OR DATA TELEGRAPH EQUIPMENT AND ADDRESS, INSTRUCTION AND/OR DATA TELEGRAPH METHOD

摘要

PROBLEM TO BE SOLVED: To transmit data to a control unit at a limited degree without providing a bus transmission stage in a unit to be controlled at the time of address, instruction and/or data telegraph. SOLUTION: The unit 2 to be controlled is constituted so as to suppress reception confirmation signals for responding to at least one of the address, instruction and/or data telegraph entirely depending on the selectable parameter of the operation state of the unit 2 to be controlled. The control unit 1 is provided with an evaluation part 17 and receives and processes the non-arrival of the reception confirmation signals responding to the address, instruction and/or data telegraph as information signals relating to the selectable parameter of the operation state of the unit 2 to be controlled.