diff --git a/pymodbus_test.py b/pymodbus_test.py
new file mode 100644
index 0000000..ffb755a
--- /dev/null
+++ b/pymodbus_test.py
@@ -0,0 +1,110 @@
+# %%
+from pymodbus.client import ModbusTcpClient
+import yaml
+
+
+# %%
+# configuration
+CFG = {
+    "Waveshare": {
+        "IP": "192.168.4.40",
+        "PORT": 502,
+    },
+    "S2-WL": {
+        "IP": "192.168.4.240",
+        "PORT": 502,
+    },
+    "DLS-L": {
+        "IP": "192.168.4.79",
+        "PORT": 8899,
+    },
+}  # Update with your inverter IP
+
+devices = [
+    # 'S2-WL',
+    "Waveshare",
+]
+
+input_registers = [
+    {
+        "desc": "Inverter Temperature",
+        "addr": 33093,
+        "len": 1,
+        "scale": 0.1,
+        "uom": "C",
+    },
+    {
+        "desc": "Grid Voltage",
+        "addr": 33251,
+        "len": 1,
+        "scale": 0.1,
+        "uom": "V",
+    },
+    {
+        "desc": "Battery SOC",
+        "addr": 33139,
+        "len": 1,
+        "scale": 1,
+        "uom": "%",
+    },
+    {
+        "desc": "Battery Storage Mode (R)",
+        "addr": 33132,
+        "len": 1,
+        "scale": 1,
+        "uom": "",
+    },
+]
+
+
+# %%
+def secret_constructor(loader, node):
+    # Process the node and return the corresponding Python object
+    return None
+
+
+yaml.add_constructor("!secret", secret_constructor)
+
+with open("solis.yaml", "r") as file:
+    data = yaml.load(file, Loader=yaml.FullLoader)
+
+sensors = data[0]["sensors"]
+# %%
+
+# Enable values to be signed (default is False).
+sock = {}
+for device in devices:
+    client = ModbusTcpClient(host=CFG[device]["IP"], port=CFG[device]["PORT"])
+
+    if client.connect():
+        str = f"Device {device} connected at {CFG[device]['IP']}:{CFG[device]['PORT']}"
+        print(str)
+        print("-" * len(str) + "\n")
+        for j, sensor in enumerate(sensors[7:8]):
+            # fmt=f"8.{max(int(-np.log10(sensor['scale'])),0)}f"
+            if sensor["input_type"] == "input":
+                result = client.read_input_registers(sensor["address"], count=sensor["count"], slave=sensor["slave"])
+
+            elif sensor["input_type"] == "holding":
+                result = client.read_holding_registers(sensor["address"], count=sensor["count"], slave=sensor["slave"])
+
+            for i, register in enumerate(result.registers):
+                print(
+                    f"{j:>3d} {(sensor['name']+f' [Byte {i}]:'):60s}{register*sensor['scale']:6.1f} {sensor.get('unit_of_measurement')}"
+                )
+        print("\n\n")
+    else:
+        print(f"Failed to connect to Device {device} at {device['IP']}:{device['PORT']}")
+
+    client.close()
+
+# %%
+client = ModbusTcpClient(host=CFG[device]["IP"], port=CFG[device]["PORT"])
+print(client.connect())
+# %%
+result = client.read_input_registers(33022, count=6, slave=sensor["slave"])
+print(result.registers)
+client = ModbusTcpClient(host=CFG[device]["IP"], port=CFG[device]["PORT"])
+result = client.read_holding_registers(43000, count=6, slave=sensor["slave"])
+print(result.registers)
+# %%