The tool LCRSet serves to parameterize the LCR ripple control receivers and supports to configurate the functionality as well as testing functions (e.g. test of the built-in relays switching on/off) and monitoring the LCR status (e.g. relay switching timer, received telegram, signal level, active work schedules, etc.). The tool LCRSet allows a comfortable handling using Windows and standard PCs or Laptops. Communication between the PC and LCR via serial port takes place at a data transfer rate of 9600 baud. A special modem cable and an adapter with integrated electrical isolation are used to connect the ripple control receiver – supplied by either 230 VAC or 100 VAC - to the PC. Using a special modem cable the LCR receivers can be parameterized without external power supply of the receiver.