Abstract: A method and device for avoiding manipulation of a data transmission. A message containing a message authentication code is received at a processing unit, the message from the processing unit is transferred to a hardware module, a check value as a function of the received message is computed in the hardware module, the received message authentication code and the check value are compared in the hardware module, a result of the comparison is transferred from the hardware module to the processing unit as an output variable, the message authentication code received in the message from the processing unit is checked in the processing unit based on the output variable.

Abstract: A method and device for avoiding manipulation of a data transmission. A message containing a message authentication code is received at a processing unit, the message from the processing unit is transferred to a hardware module, a check value as a function of the received message is computed in the hardware module, the received message authentication code and the check value are compared in the hardware module, a result of the comparison is transferred from the hardware module to the processing unit as an output variable, the message authentication code received in the message from the processing unit is checked in the processing unit based on the output variable.

Abstract: An electrical voltage supply device for machines processing printing material includes at least one drive motor for the transport of printing material and at least one further electrical consumer. A control unit is provided which, when the supply voltage drops below a minimum acceptable supply voltage of the machine processing printing material, switches of electrical consumers which are not required for the transport of printing material and supplies the drive motor for the transport of printing material from energy stored in the moving masses of the machine processing printing material.

Abstract: An electrical voltage supply device for machines processing printing material includes at least one drive motor for the transport of printing material and at least one further electrical consumer. A control unit is provided which, when the supply voltage drops below a minimum acceptable supply voltage of the machine processing printing material, switches of electrical consumers which are not required for the transport of printing material and supplies the drive motor for the transport of printing material from energy stored in the moving masses of the machine processing printing material.

Abstract: A device for coupling additional equipment to a machine having a control system with inputs and outputs for controlling the machine. The device includes connecting lines connecting the control system and the additional equipment, with the connecting lines coming together at a central connection site. The device can be located at the central connection site for metallically isolating all of the inputs and outputs of the control system from all of the inputs and outputs of the additional equipment.

Abstract: In a coin counter wherein coins from a centrifugal disc are passed in succession over a guided passageway under contact with a continuous transport belt, the outlet space from the disc, the width of the passageway and the pressure of the transport belt are simultaneously adjusted in accordance with the width and diameter of the coins being counted.

Abstract: A fuel injection pump for internal combustion engines is proposed, the work chamber of which has a relief channel which is controllable via an electromagnetically actuatable valve, the movable valve element of which is urged in a closing direction by means of the pressure which prevails in the pump work chamber.