461MRS750881-MUMRemote Monitoring and Control UnitTechnical Reference ManualREC 5235.8.3. Rated frequencyWhen configuring the REC 523 device, the rated frequency of the device is also setvia the Relay Configuration Tool. The set rated frequency cannot be changedafterwards via serial communication but it can be read via the global controlparameter Rated frequency.5.9. Parameters and eventsThe function blocks and I/O cards include a large number of parameters and events.In addition, general parameters and events are provided, for example, parameters forcontrol and communication as well as events for testing and self-supervision.The function block specific parameters are listed in each function block description.Moreover, all parameters and events for REC 523 are listed in the parameter andevent lists. The function block descriptions as well as the parameter and event listsare included in the CD-ROM Technical Descriptions of Functions (refer to Section1.8. Related documents).5.10. ParametrizationThe Relay Setting Tool is used for parametrizing and setting the REC 523 device.The parameters can be set off-line on a PC and downloaded to the relay over acommunication port.The use of the tool is explained in the userís guide for relay tools (refer to Section1.8. Related documents).Before taking a protection function block into use, ensure that thefunction block operates correctly by checking the default values andby properly setting the parameter values.