How to recharge the prepaid watt-hour meter of Xi Anqijing Electronics Co., Ltd.

Let me talk about the principle of watt-hour meter. The information exchange process of the standard electric meter is as follows: when we transmit electric energy to the electric meter, we must first verify that the electric meter will not recognize the card if it is not the card of this electric meter. If it is the first step to send electricity to the electricity meter, the second step is to read the data in the electricity meter into the card, so as to check whether the data in the electricity meter is consistent with the data in the computer before the next electricity purchase. If they are inconsistent, an error will be prompted. If it matches, you can continue to buy electricity. In particular, the standard meter has the function of stealing electricity, and only insiders know it. For example, if you steal electricity, it is very likely that someone caught the evidence of stealing electricity from your electricity meter without your knowledge and is waiting for a fine. These parameters are recorded from F 1-F8. Of course, there are loopholes, but it is more professional, that is, write down the parameters and cut them before restoring them.