1. How do I set the date and time of Delta’s power meters through communication? To set the date and time, please refer to the following two methods to meet your requirements. a)Synchronize the date and time settings of all the power meters with your PLC through communication. b)Synchronize the date and time settings of all the power meters in Delta’s DPMSoft software through communication. 2. Does Delta’s power meter support an electrical data storage function that keeps track of detailed electricity usage and energy consumption? Yes, it does. Users can download the electrical data measured and recorded by Delta’s Power Meter in Delta’s DPMSoft software through a communication network. Delta’s power meter keeps a maximum of 2 months of power and electrical energy measurement values for historical analysis. 3. What is the parameter grouping function? The parameter grouping function allows users to self-define the MODBUS communication addresses of the required parameters and gather the values within one single Modbus block for faster data transmission. This greatly saves the parameter reading time by the host controllers (such as PLC, SCADA, or IEMS.) Please see the comparison table below for the test results after enabling the parameter grouping function.