ABB PM645B是一款高性能电子模块，主要用于工业应用，提供了先进的监控和控制能力8。

以下是一些关键参数：

• 电压测量范围：10-690 V AC/DC
• 电流测量范围：0.1-10,000 A AC/DC
• 功率测量范围：0.1-6,000 kW
• 能量测量范围：0.1-9,999,999 MWh
• 频率测量范围：45-65 Hz7

此外，它还有一些独特的性能特点：

• 紧凑的设计，方便安装和集成到现有系统中2
• 具有强大的耐用性，能够承受恶劣的工作条件2
• 支持逻辑单独双Profibus DP总线，支持标准规范中的预定通信速率3
• 支持拨码开关手动设置其全部标准速率或者速率自适应3
• 支持1~2路Profibus DP电口及1~2路155M光纤接口灵活选择，支持冗余双网的光纤环网拓扑3
• 支持20km以上光纤距离，155Mb/s，高速光接口更好支持突发数据的长距离可靠传输3
• 6个双色LED状态指示灯，光纤链路以及电源故障继电器输出告警3

这些特性使得ABB PM645B在各种工业应用中有着广泛的应用前景。

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• 屏幕：19英寸触摸屏，分辨率为1366x76848
• 内存和存储：搭载固态硬盘240GB，内存为8GB DDR3 1600 DIMM4
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