Implement CurrentLimiter and spare power mode

TestApp/Driver/IChargerDriver.cs

@@ -5,6 +5,8 @@
         string HostAddress { get; set; }
         int Port { get; set; }
 
+        (double I1, double I2, double I3) GetCurrents();
+
         void SetLoadingCurrent(double value);
     }
 }

TestApp/Driver/VestelEvc04.cs

@@ -1,4 +1,5 @@
 using NModbus;
+using System.ComponentModel.Design.Serialization;
 using System.Net.Sockets;
 
 namespace TestApp.Driver
@@ -83,6 +84,21 @@ namespace TestApp.Driver
             }
         }
 
+        public (double I1, double I2, double I3) GetCurrents()
+        {
+            if (_Modbus is null)
+            {
+                Connect();
+            }
+            if (_Modbus is null) { return (double.NaN, double.NaN, double.NaN); }
+
+            var i1 = _Modbus.ReadHoldingRegisters(255, 1008, 1)[0];
+            var i2 = _Modbus.ReadHoldingRegisters(255, 1010, 1)[0];
+            var i3 = _Modbus.ReadHoldingRegisters(255, 1012, 1)[0];
+
+            return (0.001 * i1, 0.001 * i2, 0.001 * i3);
+        }
+
         public void SetLoadingCurrent(double value)
         {
             if (!_Running) { return; }