Abstract: There is described a method for testing engineering software for at least one switching device, with the engineering software being installed on a computer with at least one interface, with a first interface being provided for communication between the engineering software and switching device. To significantly reduce the software development time, it is proposed for information relating to the switching device to be input into simulation software, for the simulation software to communicate with the engineering software by way of the first interface and for the simulation software to simulate the behavior of the switching device with the aid of the information.

Abstract: A method of automatically detecting the locations of the frame lines of a reversal film as it is supplied to a processing station, such as a cutting and mounting station, a notching station or the like, so that the frame lines can be used as reference marks for the positioning of the film in the processing station wherein the film is moved past optoelectronic scanner in steps which amount to only a fractional part of the normal width of a frame line. The scanner generates an analog voltage which represents the accumulated light transmission of the film in a scanned area, which extends at right angles to the direction of travel of the film substantially across the picture area of the film and has a width which is only a fractional part of a normal width of a frame line. The extreme value of the voltage obtained during a scanning of at least one normal frame length and corresponding to the lowest light transmission is evaluated as a representation of the light transmission of the scanned film at a frame line.