Add requirements.txt

requirements.txt

@@ -0,0 +1,2 @@
+bottle==0.13.4
+pymodbus==3.14.0

sunspec.py

@@ -21,7 +21,7 @@ class Registers:
         
     def read_uint16(self, address, scale=None):
         self.check_address(address)
-        value = self.lower.getRegister(address)
+        value = self.lower.registers[address]
         return self.scale(value, scale)
 
     def read_int16(self, address, scale=None):
@@ -64,7 +64,28 @@ class CommonBlock:
         self.version = '.'.join(s.lstrip('0') for s in regs.read_bytes(42, 16).decode('ascii').split('.'))
         self.serial = regs.read_bytes(50, 32)
         self.device = regs.read_uint16(66)
-        
+
+meter_types = { 201: 'single',
+                202: 'split_single',
+                203: 'wye_three',
+                204: 'delta_three', }
+
+
+class MeterInfo:
+    def __init__(self, regs):
+        self.did = regs.read_uint16(0)
+        self.info_len = regs.read_uint16(1)
+        self.manufacturer = regs.read_bytes(2,32)
+        self.model = regs.read_bytes(18,32)
+        self.option = regs.read_bytes(34,16)
+        self.version = regs.read_bytes(42,16)
+        self.serial = regs.read_bytes(50,32)
+        self.device = regs.read_uint16(66)
+        typ = regs.read_uint16(67)
+        self.type = meter_types.get(typ, typ)
+        self.data_len = regs.read_uint16(68)
+
+       
 meter_events_bits = { 2: 'Power Failure',
                       3: 'Under Voltage',
                       4: 'Low PF',
@@ -154,7 +175,7 @@ class InverterBlock:
 
 class Inverter:
     def __init__(self, host, port=1502, device=1):
-        self._conn = ModbusTcpClient(host, port)
+        self._conn = ModbusTcpClient(host, port=port)
         self._device = 1
         
     def connect(self):
@@ -165,7 +186,7 @@ class Inverter:
         if device is None:
             device = self._device
         self.connect()
-        rs = self._conn.read_holding_registers(addr, length, slave=device)
+        rs = self._conn.read_holding_registers(addr, count=length, device_id=device)
         return Registers(rs, length)
 
     def header(self, base):
@@ -180,3 +201,7 @@ class Inverter:
     def meter(self, n):
         base = 40190 + 174*n
         return Meter(self.registers(base, 105))
+
+    def meter_info(self, n):
+        base = 40121 + 174*n
+        return MeterInfo(self.registers(base, 69))