An automation control system wirelessly controls a safety function of a remote machine. The automation control system comprises a base station and a control receiver. The base station is configured to transmit a control signal for controlling the safety function using a first transmit signal of a first safety channel, and to transmit the control signal using a second transmit signal of a second safety channel. The control receiver comprises: a processor configured to extract a first received version of the control signal from the first received transmit signal, and to extract a second received version of the control signal from the second received transmit signal; and an electrical interface which is connectable with an electrical interface of the machine for controlling the safety function of the machine based on the first received version of the control signal and the second received version of the control signal.