diff --git a/config4.json b/config4.json
index fac1330..a65e159 100644
--- a/config4.json
+++ b/config4.json
@@ -5,11 +5,14 @@
   "username": "hjemq_sim_icm",
   "passwd": "Hj57471000",
   "publish_topic": "GateWayPublicTopic_Server",
-  "publish_interval": 5000,
+  "publish_interval": 10000,
   "max_publish_count": 0,
   "publish_qos": 0,
   "subscribe_qos": 0,
   "subcriber_topic": "ServerPublicTopic_GateWay",
+  "FsuCodePrefix": "1111111000",
+  "FsuCodeStart": 1,
+  "FsuCodeEnd": 365,
   "FsuCodes": ["11111110000001","11111110000002","11111110000003","11111110000004"],
   "publish_data": {
     "FsuCode": "11010110100999",
diff --git a/gwsimulator.py b/gwsimulator.py
index 26ce7b0..de996d9 100644
--- a/gwsimulator.py
+++ b/gwsimulator.py
@@ -80,6 +80,9 @@ class MqttConfigure:
         self.client_id = f'python-mqtt-{random.randint(0, 1000)}'
         self.max_publish_count = 0
         self.fsuCodes = []
+        self.FsuCodePrefix = 1111111000
+        self.FsuCodeStart = 1
+        self.FsuCodeEnd = 999
 
 
 class PublishData:
@@ -103,7 +106,11 @@ def read_configure(mqtt_conf=None, publish_data=None):
             mqtt_conf.subscribe_qos = json_data['subscribe_qos']
             mqtt_conf.subscriber_topic = json_data['subcriber_topic']
             mqtt_conf.client_id = json_data['client_id']
-            # 2025.03.11 增加读取多个FsuCode，用于模拟多个不同的设备
+
+            # 2025.03.27 增加读取多个FsuCode，用于模拟多个不同的设备
+            mqtt_conf.FsuCodePrefix = json_data['FsuCodePrefix']
+            mqtt_conf.FsuCodeStart = json_data['FsuCodeStart']
+            mqtt_conf.FsuCodeEnd = json_data['FsuCodeEnd']
             mqtt_conf.fsuCodes = json_data['FsuCodes']
             publish_data.publish_data = json_data['publish_data']
     except Exception as e:
@@ -119,7 +126,7 @@ def pub_connect_mqtt():
 
     def on_disconnect(client, userdata, rc):
         """断开连接回调"""
-        logger.info(f"[{time.ctime()}] 连接断开，原因：{client.error_string(rc)}")
+        logger.info(f"[{time.ctime()}] 连接断开")
         if rc != 0:
             logger.info("尝试重新连接...")
             reconnect()
@@ -174,8 +181,6 @@ def sub_connect_mqtt():
 # 2025.03.11 增加函数参数，处理制定的fsucode
 def build_publish_msg(fsu_code=None):
     pd = publish_data.publish_data
-    # msg = {"FsuCode": pd["FsuCode"], "type": pd["type"], "IdCodeContent": [],
-    #       "TimeStamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())}
     msg = {"FsuCode": fsu_code, "type": pd["type"], "IdCodeContent": [],
            "TimeStamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())}
     for one in pd["IdCodeContent"]:
@@ -199,12 +204,17 @@ def build_publish_msg(fsu_code=None):
 
 def publish(client):
     msg_count = 0
+    # 2025.03.11 增加循环处理多个FsuCode，用于模拟多个不同的设备
+    fsu_codes_result = []
+    for num in range(mqtt_conf.FsuCodeStart, mqtt_conf.FsuCodeEnd+1):
+        suffix = f"{num:04d}"
+        fsu_codes_result.append(mqtt_conf.FsuCodePrefix + suffix)
+
     while True:
         if mqtt_conf.max_publish_count != 0 and msg_count > mqtt_conf.max_publish_count:
             break
-
-        # 2025.03.11 增加循环处理多个FsuCode，用于模拟多个不同的设备
-        for fsu_code in mqtt_conf.fsuCodes:
+        # for fsu_code in mqtt_conf.fsuCodes:
+        for fsu_code in fsu_codes_result:
             logger.info("Processing fsuCode: " + fsu_code)
             msg = build_publish_msg(fsu_code)
             msg_info = client.publish(topic=mqtt_conf.publish_topic, payload=msg, qos=mqtt_conf.publish_qos)
@@ -225,7 +235,8 @@ def publish(client):
 
             msg_count += 1
             if status == mqtt_client.MQTT_ERR_SUCCESS:
-                logger.info(f"Send `#{msg_count}` message to topic `{mqtt_conf.publish_topic}`: `{msg}` ")
+                # logger.info(f"Send `#{msg_count}` message to topic `{mqtt_conf.publish_topic}`: `{msg}` ")
+                logger.info(f"Send `#{msg_count}` message to topic `{mqtt_conf.publish_topic}` successfully")
             else:
                 logger.error(f"Failed to send `#{msg_count}` message to topic {mqtt_conf.publish_topic}")
         time.sleep(mqtt_conf.publish_interval/1000)