OKUMA E4809-436-016-D PCB卡
设置时间/日期：这些消息用于设置PQM软件时钟的时间和日期。PQM软件时钟保留约一小时的电源中断。可以启用时钟未设置警报，以便在时钟数据丢失时发出警报。时间和日期用于所有带时间戳的数据。如果尚未设置时钟，则所有时间戳数据的显示时间右侧将显示“？”。按照以下步骤设置新的时间和日期。时间和日期也可以通过Modbus通信设置。有关计算参数示例，请参阅第7.2.10节功能代码16-广播命令。PQM可编程为通过各种方法计算计量量和需求。XTRACT基本信息：PQM可被编程为使用真实RMS值或采样数据的基本成分计算所有计量量。当该设定值设置为DISABLE（禁用）时，在进行计量计算时，PQM将包括所有谐波含量，最高32次谐波。
SET TIME/DATE: These messages are used to set the time and date for the PQM software clock. The PQM software clock is retained for power interruptions of approximately one hour. A CLOCK NOT SET alarm can be enabled so that an alarm will occur on the loss of clock data. The time and date are used for all time-stamped data. If the clock has not been set, a “?” will appear on the right-hand side of the displayed time for all time-stamped data. Follow the steps shown below to set the new time and date. The time and date can also be set via Modbus communications. Refer to section 7.2.10 FUNCTION CODE 16 - BROADCAST COMMAND for an example Calculation Parameters The PQM can be programmed to calculate metering quantities and demand by various methods.XTRACT FUNDAMENTAL: The PQM can be programmed to calculate all metering quantities using true RMS values or the fundamental component of the sampled data. When this setpoint is set to DISABLE, the PQM will include all harmonic content, up to the 32nd harmonic, when making metering calculations.
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