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The synchronous pulse input of the maximum monitor is monitored with an edge detection. The measuring period starts either with a falling or with a rising edge of the synchronous pulse. The type of pulse depends on the respective RU and can be defined via the Device parameters dialogue. The measurement pause is started with the triggering edge, rising or falling. After the set time has elapsed, the release for the trend calculation is then given and the power optimisation can begin. This process is repeated continuously with each new measurement period to ensure synchronisation between the utility and the maximum controller.