Arrangement with an actuator

An arrangement with an actuator, the arrangement comprising:

• at least one transmitting device configured for transmitting control telegrams each containing a predefined control command for the actuator or itself forming the predefined control command;
• at least two receiving devices configured for receiving the control telegrams from said at least one transmitting device and for generating a control signal for the actuator;
• and
• a decision device connected between said at least two receiving device and the actuator, said decision device being configured to generate a release signal allowing the control signal of the receiving devices to be implemented by the actuator only if the control signal is present from all receiving devices or from at least a predefined minimum number of receiving devices;
• said at least one transmitting device being configured to transmit the predefined control command in each case to each said receiving device with a receiver-specific control telegram, wherein each receiver-specific control telegram is provided with a respective check datum indicating a consecutive number of the respectively transmitted control telegram in encrypted or unencrypted form;
• and
• each of said at least two receiving devices being configured to accept a received control telegram as valid for it on a basis of the check datum if the check datum indicates a telegram number that matches the consecutive telegram number expected at a receiving end and, if the received control telegram is considered valid, to generate the control signal for the actuator in each case for a predefined time duration.

A method for operating an arrangement with an actuator, a transmitting device, at least two receiving devices, and a decision device connected between the receiving devices to the actuator, the method which comprises:

• transmitting with the transmitting device control telegrams each containing a predefined control command for the actuator or itself forming the predefined control command;
• receiving the control telegrams and generating the control signals for the actuator with the at least two receiving devices;
• and
• allowing with the decision device an implementation of the control signals of the receiving devices by the actuator by issuing a release signal only if the control signal is present from all receiving devices or at least a predefined minimum number of receiving devices;
• transmitting with the transmitting device the predefined control command in each case to each receiving device with a receiver-specific control telegram, wherein each receiver-specific control telegram is provided with a check datum that indicates a consecutive telegram number of a respectively transmitted control telegram in encrypted or unencrypted form;
• and
• accepting with each of the receiving devices a received control telegram as valid for it on a basis of the check datum if the check datum indicates a telegram number that matches the consecutive telegram number expected at a receiving end, and, if a valid control telegram is received, generating the control signal for the actuator in each case for a predefined time duration.