将读取文件添加PLC的名字

gateway/cache_manager.py

@@ -30,6 +30,8 @@ class CacheManager:
         self.logger = logging.getLogger("CacheManager")
         self.init_cache()
 
+
+
     def init_cache(self):
         """初始化缓存结构"""
         for plc in self.config["plcs"]:
@@ -643,6 +645,8 @@ class CacheManager:
                 plc_status = self.plc_connection_status.get(plc_name, "unknown")
                 return None, "Area is read-only", plc_status, 0
 
+            cache_file = f"{plc_name}_area_{area_name}.log"
+
             # 计算实际DB偏移
             db_offset = area["offset"] + offset
 
@@ -669,7 +673,7 @@ class CacheManager:
 
             try:
                 # 使用Snap7Client的read_generic方法
-                result = client.read_generic(area["db_number"], db_offset, data_type, count)
+                result = client.read_generic(area["db_number"], db_offset, data_type, cache_file, count)
                 if result is None:
                     return None, "Read failed", plc_status, 0
 
@@ -874,3 +878,4 @@ class CacheManager:
                     "last_update": last_update,
                     "last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never"
                 }
+

gateway/main.py

@@ -89,9 +89,10 @@ class GatewayApp:
                     # 创建并启动线程
                     read_thread = PLCDataReaderThread(
                         plc_client=plc_client,
+                        plc_name=plc_config["name"],
                         area_config=area_config,
                         update_interval=0.03,
-                        output_file_prefix="plc_area_"
+                        output_file_prefix="area_"
                     )
                     read_thread.start()
                     # 存入线程列表，便于后续停止

gateway/plc_data_reader.py

@@ -15,7 +15,7 @@ from snap7.util import get_real, get_int, get_bool, get_word, get_dint  # 导入
 
 
 class PLCDataReaderThread(threading.Thread):
-    def __init__(self, plc_client, area_config, update_interval=0.03, output_file_prefix="plc_area_"):
+    def __init__(self, plc_client, plc_name, area_config, update_interval=0.03, output_file_prefix="area_"):
         """
         初始化PLC数据读取线程（配置驱动，支持多区域）
         参数:
@@ -26,11 +26,12 @@ class PLCDataReaderThread(threading.Thread):
             output_file_prefix: 输出文件前缀，最终文件名为“前缀+区域名.log”
         """
         # 线程名包含区域名，便于日志区分（如"PLCDataReader_DB100_Read"）
-        thread_name = f"PLCDataReader_{area_config['name']}"
+        thread_name = f"{plc_name}_Reader_{area_config['name']}"
         super().__init__(name=thread_name, daemon=True)
 
         # 1. 核心依赖（PLC客户端+区域配置）
         self.plc_client = plc_client
+        self.plc_name = plc_name
         self.area_config = area_config  # 动态区域配置，不再硬编码DB100
         self.area_name = area_config["name"]
         self.db_number = area_config["db_number"]
@@ -40,7 +41,7 @@ class PLCDataReaderThread(threading.Thread):
 
         # 2. 线程与输出配置
         self.update_interval = update_interval
-        self.output_file = f"{output_file_prefix}DB{self.db_number}.log"  # 每个区域独立文件
+        self.output_file = f"{self.plc_name}_{output_file_prefix}{self.area_name}.log"  # 输出文件名}{output_file_prefix}DB{self.db_number}.log"  # 每个区域独立文件
 
         # 3. 数据缓存（新增结构化数据存储）
         self.running = False

gateway/snap7_client.py

@@ -54,7 +54,7 @@ class Snap7Client:
 
         self.last_connect_attempt = current_time
         try:
-            with self.lock:
+            with self.lock:   # 进入锁，其他线程需等待
                 self.client.connect(self.ip, self.rack, self.slot)
 
                 # 验证连接是否真正有效
@@ -94,7 +94,7 @@ class Snap7Client:
             return None  # 返回None而不是零填充数据
 
         try:
-            with self.lock:
+            with self.lock:   # 进入锁，其他线程需等待
                 data = self.client.db_read(db_number, offset, size)
                 # 验证返回数据的有效性
                 if data is None or len(data) != size:
@@ -456,7 +456,7 @@ class Snap7Client:
             self.logger.error(f"❌ 读取DB{db_number}缓存文件异常: {e}", exc_info=True)
             return None
 
-    def read_generic(self, db_number, offset, data_type, count=1):
+    def read_generic(self, db_number, offset, data_type, cache_file, count=1):
         """
         通用读取接口（改进）：
         - DB100：优先从缓存文件读取 → 再内存缓存 → 最后PLC
@@ -465,7 +465,7 @@ class Snap7Client:
         # 1、处理DB数据块：优先从缓存文件读取
         raw_data = None
         if raw_data is None:
-            cache_file = f"plc_area_DB{db_number}.log"
+            cache_file = cache_file
             raw_data = self.read_db_from_file_cache(db_number, offset, count, cache_file)
             if raw_data is not None:
                 print(f"从缓存文件中读取DB{db_number}的数据")