diff --git a/Modbus.Net/Modbus.Net.OPC/OpcConnector.cs b/Modbus.Net/Modbus.Net.OPC/OpcConnector.cs
index 977b995..1295fbc 100644
--- a/Modbus.Net/Modbus.Net.OPC/OpcConnector.cs
+++ b/Modbus.Net/Modbus.Net.OPC/OpcConnector.cs
@@ -113,7 +113,7 @@ namespace Modbus.Net.OPC
                         return new OpcParamOut
                         {
                             Success = true,
-                            Value = BigEndianValueHelper.Instance.GetBytes(result, result.GetType())
+                            Value = BigEndianValueHelper.Instance.GetBytes(result.Value, result.Value.GetType())
                         };
                     }
                     return new OpcParamOut