Update: Battery Optimizer v3.4.0 mit allen Fixes und Features

ess_set_power.py

@@ -0,0 +1,25 @@
+# /config/pyscript/ess_set_power.py
+import struct 
+
+@service
+def ess_set_power(hub="openEMS", slave=1, power_w=0.0):
+    """
+    706 = SetActivePowerEquals (float32 BE)
+    Laden = negativ, Entladen = positiv.
+    """
+
+    ADDR_EQUALS = 706
+
+    def float_to_regs_be(val: float):
+        b = struct.pack(">f", float(val))  # Big Endian
+        return [(b[0] << 8) | b[1], (b[2] << 8) | b[3]]  # [hi, lo]
+
+    try:
+        p = float(power_w)
+    except Exception:
+        p = 0.0
+
+    regs = float_to_regs_be(p)
+    log.info(f"OpenEMS ESS Ziel: {p:.1f} W -> {ADDR_EQUALS} -> {regs}")
+
+    service.call("modbus", "write_register", hub=hub, slave=slave, address=ADDR_EQUALS, value=regs)