Method for transmitting control commands in a system of distributed units (L1-L18), in particular in an illumination system having distributed luminaires, at least some of the distributed units (L1-L18) retransmitting a received control command to ensure the received control command is forwarded to all distributed units (L1-L18), characterized in that the received control command includes a value of a command transmission time that has already elapsed, and that each distributed unit (L1-L18), which retransmits a received control command, recognizes an individual delay time taking into account the receiving and the forwarding, and adds it to the value of the elapsed command transmission time contained in the received control command and retransmits the control command with the value of the elapsed command transmission time updated thereby, and each distributed unit (L1-L18) determining a relevant individual waiting time (TTL ind), after the expiry of which the control command received in each case is executed by the relevant unit (L1-L18), a unit (L1-L18) of the distributed units (L1-L18) which retransmits a received control command, determining, on the basis of the updated value of the elapsed command transmission time, the individual waiting time (TTL ind) by calculating the difference between a global transmission duration (T TTL) known to each of the distributed units (L1-L18), and the updated value of the elapsed command transmission time, and a unit (L1-L18) of the distributed units which does not retransmit a received control command determining, on the basis of the value of the elapsed command transmission time contained in a received control command, the relevant individual waiting time (TTL ind) by calculating the difference between the global transmission duration (T TTL) known to each of the distributed units (L1-L18) and the value of the elapsed command transmission time, the global transmission duration (T TTL) indicating within which time all distributed units (L1-L18) will receive the control command. at least some of the distributed units (L1-L18) retransmitting a received control command to ensure the received control command is forwarded to all distributed units (L1-L18), characterized in that the received control command includes a value of a command transmission time that has already elapsed, and that each distributed unit (L1-L18), which retransmits a received control command, recognizes an individual delay time taking into account the receiving and the forwarding, and adds it to the value of the elapsed command transmission time contained in the received control command and retransmits the control command with the value of the elapsed command transmission time updated thereby, and each distributed unit (L1-L18) determining a relevant individual waiting time (TTL ind), after the expiry of which the control command received in each case is executed by the relevant unit (L1-L18), a unit (L1-L18) of the distributed units (L1-L18) which retransmits a received control command, determining, on the basis of the updated value of the elapsed command transmission time, the individual waiting time (TTL ind) by calculating the difference between a global transmission duration (T TTL) known to each of the distributed units (L1-L18), and the updated value of the elapsed command transmission time, and a unit (L1-L18) of the distributed units which does not retransmit a received control command determining, on the basis of the value of the elapsed command transmission time contained in a received control command, the relevant individual waiting time (TTL ind) by calculating the difference between the global transmission duration (T TTL) known to each of the distributed units (L1-L18) and the value of the elapsed command transmission time, the global transmission duration (T TTL) indicating within which time all distributed units (L1-L18) will receive the control command.