将tcp协议修改为opcua协议

weight_dialog.py

@@ -37,9 +37,11 @@ class WeightDetailsDialog(QDialog):
         self.check_label = None  # 状态图标标签
 
         self.is_running = False  # 定时器是否运行
-        self.latest_json_data = {}
         self.statusWidgets = []  # 状态显示控件列表
 
+        # 存储当前重量值（用于处理空值/异常值）
+        self.current_weight = 0.0
+
         self._init_ui(title)
 
     # -----------------------
@@ -189,12 +191,21 @@ class WeightDetailsDialog(QDialog):
     def update_weight(self, weight_data):
         """根据TCP获取的数据更新重量显示"""
         # 更新6个数字标签（补零为6位，超过6位取后6位）
-        try:
-            weight_int = int(weight_data)
-            weight_str = f"{weight_int:06d}"[-6:]
-        except (ValueError, TypeError):
+        # 处理空值/异常值（客户端传递的 "" 或 "error"）
+        if weight_data == "" or weight_data == "error" or weight_data is None:
             weight_str = "000000"
+            self.current_weight = 0
+        else:
+            try:
+                # 支持浮点数（如 648.06 → 保留2位小数后转为整数显示，避免丢失精度）
+                weight_int = int(float(weight_data))
+                self.current_weight = weight_int
+                weight_str = f"{weight_int:06d}"[-6:]  # 超过6位取后6位
+            except (ValueError, TypeError):
+                weight_str = "000000"
+                self.current_weight = 0
 
+        # 更新6个数字标签
         for i in range(min(len(self.digit_labels), 6)):
             self.digit_labels[i].setText(weight_str[i] if i < len(weight_str) else "0")
 
@@ -227,10 +238,15 @@ class WeightDetailsDialog(QDialog):
     # --------------------
     def _clear_ui_info(self):
         """清空管片ID和网格信息"""
-        if self.id_value_label:
+        # 修复：避免访问未定义的 self.id_value_label
+        if hasattr(self, 'id_value_label') and self.id_value_label:
             self.id_value_label.setText("")
         for widget in self.statusWidgets:
-            widget['valueLabel'].setText("")
+            if 'valueLabel' in widget and widget['valueLabel']:
+                widget['valueLabel'].setText("")
+        # 清空重量显示
+        for label in self.digit_labels:
+            label.setText("0")
         print("ℹ️ 界面信息已清空")
 
 # 测试代码