The Impact Analyzer is generally used for sled tests. It consists of 3 components: the raster, the laser unit and the PCMCIA plug-in card as an interface between the PC and the laser unit. The statuses of the lasers are transmitted via a PCMCIA interface to the PC of the system controller and analyzed there to determine the speeds. When used in a MESSRING facility the laser unit is connected to the system’s controller cabinet for the power supply and for the connection to the PLC. This allows to actuate the trigger manually. The connections “RS485” are connected via the PCMCIA adapter card to the facility control PC in the control room to analyze the flanks of the laser beams for the speed measurements.