Implementation of Mercury-200 power meter's exchange protocol.
The commands.go file contains all implemented commands. Below is the list of commands with hex codes and corresponding functions in code.
| Code |
Command |
Function |
| 21 |
Current time |
GetCurrentTime |
| 22 |
Power limit |
GetPowerLimit |
| 23 |
Energy limit |
GetEnergyLimit |
| 24 |
Seasonal time shift flag |
GetSeasonSwitchFlag |
| 25 |
Limits of manual correction |
GetManualCorrectionAmount |
| 27 |
Energy from last reset |
GetEnergyFromReset |
| 28 |
Firmware version |
GetVersion |
| 29 |
Voltage of builtin battery |
GetBatteryVoltage |
| 2A |
Displayed values |
GetTariffsDisplayOptions |
| 2B |
Last turnoff time |
GetLastTurnOffTime |
| 2C |
Last standby time |
GetLastTurnOnTime |
| 2D |
Impulse output operation mode |
GetImpOutputOptions |
| 2E |
Number of tariffs |
GetTariffsCount |
| 2F |
Serial number |
GetSerial |
| 30 |
Holidays |
GetHolidays |
| 32 |
Energy at month start time |
GetEnergyAtMonthStart |
| 61 |
Last case opening time |
GetLastOpenedTime |
| 62 |
Last case closing time |
GetLastClosedTime |
| 63 |
Instant values |
GetInstants |
| 66 |
Production date |
GetProductionDate |
| 67 |
Values displaying intervals |
GetDisplayIntervals |
| Code |
Command |
Function |
| 2 |
Set current time |
SetCurrentTime |
| 3 |
Set power limit |
SetPowerLimit |
| 4 |
Set energy limit |
SetEnergyLimit |
| 5 |
Set seasonal time shift flag |
SetSeasonSwitchFlag |
| 6 |
Set manual correction limits |
SetManualCorrectionAmount |
| 7 |
Set impulse output operation mode |
SetImpOutputOptions |
| 9 |
Choose displayed values |
SetTariffsDisplayOptions |
| 0A |
Set number of tariffs |
SetTariffsCount |
| 0D |
Set displaying intervals |
SetDisplayIntervals |
| 10 |
Set holidays |
SetHolidays |
- get values of accumulated energy with tariffs breakdown at the start of 11th month
package main
import (
"fmt"
"mercury200/commands"
)
func main() {
netNum := "266608"
port := "COM5"
timeOut := 5
baudRate := 9600
result, _ := commands.GetEnergyAtMonthStart(&netNum, &port, &timeOut, &baudRate, 11)
fmt.Println(result)
fmt.Printf("Tariff 1: %s kW\n", result.T1)
fmt.Printf("Tariff 2: %s kW", result.T2)
}$ go run main.go
&{0684.92 0342.65 000.0 000.0}
Tariff 1: 0684.92 kW
Tariff 2: 0342.65 kW