test knx und test lüftungsanlage added

test.py

@@ -1,18 +1,69 @@
-from pymodbus.client import ModbusTcpClient
+import time
 import struct
+from pymodbus.client import ModbusTcpClient
 
-MODBUS_IP="10.0.0.40"
-client=ModbusTcpClient(MODBUS_IP, port=502)
-client.connect()
+MODBUS_IP = "10.0.0.40"
+SLAVE_ID = 1
+POLL = 2.0  # Sekunden
+
+def u16_to_i16(u16):
+    return struct.unpack(">h", struct.pack(">H", u16 & 0xFFFF))[0]
+
+def read_i16(client, addr, scale):
+    rr = client.read_input_registers(address=addr, count=1, slave=SLAVE_ID)
+    if rr.isError():
+        return None
+    raw = rr.registers[0]
+    if raw == 65535:
+        return None
+    return round(u16_to_i16(raw) / scale, 1)
+
+def fmt(v):
+    return f"{v:5.1f}" if v is not None else "  ---"
+
+client = ModbusTcpClient(MODBUS_IP, port=502)
 
 try:
-    rr = client.read_input_registers(30, count=3, slave=1)
-    print("Raw 30..32:", rr.registers)
+    if not client.connect():
+        raise RuntimeError("Modbus connect failed")
 
-    def as_int16(x):
-        return struct.unpack(">h", struct.pack(">H", x))[0]
+    print("Logging temperatures (Ctrl+C to stop)\n")
+
+    while True:
+        # Eintrittsluft = Mittelwert aus 3x0324 & 3x0323 (scale 100)
+        t_e1 = read_i16(client, 324, 100)
+        t_e2 = read_i16(client, 323, 100)
+        t_ein = None
+        if t_e1 is not None and t_e2 is not None:
+            t_ein = round((t_e1 + t_e2) / 2, 1)
+
+        # Zuluft -> 3x0614 (/10)
+        t_zuluft = read_i16(client, 614, 10)
+
+        # Abluft -> Mittelwert aus 3x0581 & 3x0582 (/10)
+        t_a1 = read_i16(client, 581, 10)
+        t_a2 = read_i16(client, 582, 10)
+        t_abluft = None
+        if t_a1 is not None and t_a2 is not None:
+            t_abluft = round((t_a1 + t_a2) / 2, 1)
+
+        # Fortluft -> 3x0301 (/100)
+        t_fortluft = read_i16(client, 301, 100)
+
+        ts = time.strftime("%H:%M:%S")
+
+        print(
+            f"{ts} | "
+            f"Eintritt: {fmt(t_ein)} °C | "
+            f"Zuluft: {fmt(t_zuluft)} °C | "
+            f"Abluft: {fmt(t_abluft)} °C | "
+            f"Fortluft: {fmt(t_fortluft)} °C"
+        )
+
+        time.sleep(POLL)
+
+except KeyboardInterrupt:
+    print("\nStopped by user.")
 
-    for i, raw in enumerate(rr.registers, start=30):
-        print(i, "raw", raw, "int16", as_int16(raw), "scaled", as_int16(raw)/10.0)
 finally:
     client.close()