Organize remote collection of readings from electricity meters - the task is not difficult, the counters are smarter and smarter every year and should send everything themselves, but no, the information is certainly there, but it is scattered. Manufacturers of equipment apparently also want to earn on the sale of their software. I'm writing this article to save time for everyone who has similar tasks.
The counter accepts an ADDR-CMD-CRC byte string, and gives the ADDR-CMD-DATA-CRC, where:
ADDR - The name of the counter (for Mercury 203.2T - coincides with the serial ...