diff --git a/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c b/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
index cfb32dc..419dec6 100644
--- a/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
+++ b/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
@@ -32,6 +32,7 @@ static uint16_t zero_weight = 0;     /* 去皮
 static uint32_t last_query_tick = 0;
 static uint32_t feed_start_tick = 0; /* 投喂开始时刻，用于超时保护 */
 static uint8_t first_query_sent = 0; /* 首次上电查询已发送 */
+static uint32_t await_reply_tick = 0; /* 查询发出时刻，0=无等待中的查询 */
 static uint8_t first_query_reported = 0; /* 首次上电有效重量已上报 */
 
 /* 重量异常增加计数 */
@@ -385,15 +386,27 @@ void feedScaleProcess(void)
     if (first_query_sent == 0 || (HAL_GetTick() - last_query_tick) >= query_interval) {
         last_query_tick = HAL_GetTick();
         feed_scale_send_query();
+        await_reply_tick = HAL_GetTick();   /* 标记等待应答，1s 无帧打日志 */
         if (first_query_sent == 0) {
             first_query_sent = 1;
             log_info("> FEED: 首次查询已发送");
         }
     }
 
+    /* 查询发出后 1s 仍无任何应答帧：打日志（有无应答一目了然） */
+    if (await_reply_tick && (HAL_GetTick() - await_reply_tick) > 1000u) {
+        await_reply_tick = 0;
+        log_warn("> FEED: 查询无应答（秤未接/线序/波特率/站号不对）");
+        s_last_err = 1;
+    }
+
     /* 读取 485 返回 */
     len = feed_scale_read_frame(rx_buf, sizeof(rx_buf));
     if (len > 0) {
+        if (!(len == sizeof(RS485_WEIGHT_CMD) &&
+              memcmp(rx_buf, RS485_WEIGHT_CMD, sizeof(RS485_WEIGHT_CMD)) == 0)) {
+            await_reply_tick = 0;   /* 收到非回声帧：本次查询有应答 */
+        }
         int prc = feed_scale_parse_weight(rx_buf, len, &cur_weight);
         if (prc != -7) {   /* -7=回声帧：不影响状态显示 */
             s_last_err = (prc == 0) ? 0 : (prc == -1 ? 2 : (prc == -2 ? 3 : (prc == -4 ? 4 : (prc == -6 ? 6 : 5))));
diff --git a/V1.5/鐗堟湰璇存槑.md b/V1.5/鐗堟湰璇存槑.md
index 05dae2e..f13ecf5 100644
--- a/V1.5/鐗堟湰璇存槑.md
+++ b/V1.5/鐗堟湰璇存槑.md
@@ -187,3 +187,4 @@
 - 淇 485 淇鏂规锛氬幓鎺� TX 鍚庢竻缂撳啿锛堜細鍚冩帀蹇�熷洖澶嶇殑鍓嶅嚑涓瓧鑺傦級锛�
   鏀逛负鍥炲０甯ф寜鍐呭璇嗗埆闈欓粯涓㈠純锛堜笌鏌ヨ鍛戒护瀹屽叏涓�鑷寸殑甯э級锛屽悎骞跺抚闈� 01 03 04 甯уご鎼滅储瑙ｆ瀽
 - 485 棣栨鏌ヨ寤惰繜 3s锛堥伩寮�涓婄數绐楀彛锛岄槻姝㈤涓簲绛旇寮�鏈虹箒蹇欐湡鎾炲潖锛�
+- 485 鏌ヨ鏃ュ織澧炲己锛氭煡璇㈠彂鍑� 1s 鏃犱换浣曞簲绛斿抚鎵� WARN锛堟棤搴旂瓟锛夛紝鏈夊簲绛斿垯鍘熸湁 hex/瑙ｆ瀽鏃ュ織瑕嗙洊