diff --git a/STM32F103_App1/HardWare/RELAY/ext_relay.c b/STM32F103_App1/HardWare/RELAY/ext_relay.c
index 7451446..95692a8 100644
--- a/STM32F103_App1/HardWare/RELAY/ext_relay.c
+++ b/STM32F103_App1/HardWare/RELAY/ext_relay.c
@@ -185,7 +185,7 @@ void ext_relay_cmd(uint8_t ch, uint8_t on, const char *id)
     /* 不在线也照常受理: 命令链路第一步就是 FC03 探测, 不通才应答离线(平时无轮询) */
     if (cmd_pending || cmd_stage != ST_IDLE) {
         log_warn("> EXT: 上一命令未完成, 拒绝 SW%d 命令", ch + 4);
-        if (id) NET_publish_response(id, 0, "ext relay busy");
+        if (id) NET_publish_response(id, 0, "\xE6\x89\xA9\xE5\xB1\x95\xE6\x9D\xBF\xE5\xBF\x99\xE8\xAF\xB7\xE9\x87\x8D\xE8\xAF\x95");
         return;
     }
     cmd_ch = ch;
@@ -318,7 +318,7 @@ void ext_relay_process(void)
         } else if (rx_exc || (now - cmd_tick) > EXT_RESP_TIMEOUT_MS) {
             rx_exc = 0;
             if (cmd_txn == TXN_CMD) {
-                ext_txn_retry_or_fail(0, "ext relay board offline");
+                ext_txn_retry_or_fail(0, "\xE6\x89\xA9\xE5\xB1\x95\xE6\x9D\xBF\xE4\xB8\x8D\xE5\x9C\xA8\xE7\xBA\xBF");
             } else {
                 ext_txn_retry_or_fail(0, "");
             }
@@ -334,7 +334,7 @@ void ext_relay_process(void)
             cmd_tick = now;
         } else if (rx_exc || (now - cmd_tick) > EXT_RESP_TIMEOUT_MS) {
             rx_exc = 0;
-            ext_txn_retry_or_fail(1, "ext relay no response");
+            ext_txn_retry_or_fail(1, "\xE6\x89\xA9\xE5\xB1\x95\xE6\x9D\xBF\xE6\x97\xA0\xE5\xBA\x94\xE7\xAD\x94");
         }
         return;
     }
@@ -387,7 +387,7 @@ void ext_relay_process(void)
             cmd_stage = ST_IDLE;
         } else if (rx_exc || (now - cmd_tick) > EXT_RESP_TIMEOUT_MS) {
             rx_exc = 0;
-            ext_txn_retry_or_fail(0, "ext relay no response");
+            ext_txn_retry_or_fail(0, "\xE6\x89\xA9\xE5\xB1\x95\xE6\x9D\xBF\xE6\x97\xA0\xE5\xBA\x94\xE7\xAD\x94");
         }
         return;
     }
diff --git a/STM32F103_App1/HardWare/RELAY/relay.c b/STM32F103_App1/HardWare/RELAY/relay.c
index b5910e8..b90dbc2 100644
--- a/STM32F103_App1/HardWare/RELAY/relay.c
+++ b/STM32F103_App1/HardWare/RELAY/relay.c
@@ -198,7 +198,7 @@ void relayAction(uint8_t *data)
         swkey[0] = 's'; swkey[1] = 'w'; swkey[2] = (char)('0' + ch); swkey[3] = '\0';
         if (!proto_get_bool((char *)data, swkey, &on)) {
             log_warn("> 继电器: sw%d 值无效", ch);
-            NET_publish_response(CmdId, 0, "bad sw value");
+            NET_publish_response(CmdId, 0, "\xE5\xBC\x80\xE5\x85\xB3\xE5\x8F\x82\xE6\x95\xB0\xE6\x97\xA0\xE6\x95\x88");
             return;
         }
 
@@ -215,7 +215,7 @@ if (g_feed_scale_on) {
         /* 称重自动投喂模式下继电器 1 仅由 feeding 指令控制, sw1 直接忽略 */
         if (ch == 1) {
             log_warn("> 继电器: 称重投喂模式下忽略 sw1，请用 feeding 指令");
-            NET_publish_response(CmdId, 0, "sw1 disabled, use feeding");
+            NET_publish_response(CmdId, 0, "\xE5\xB8\xA6\xE7\xA7\xA4\xE6\xA8\xA1\xE5\xBC\x8F\x73\x77\x31\xE6\x97\xA0\xE6\x95\x88\xE8\xAF\xB7\xE7\x94\xA8\x66\x65\x65\x64\x69\x6E\x67\xE6\x8C\x87\xE4\xBB\xA4");
             return;
         }
 }
@@ -226,7 +226,7 @@ if (g_feed_scale_on) {
         int value_true = 0;
         if (!proto_get_bool((char *)data, "feeding", &value_true)) {
             log_warn("> 继电器: feeding 值无效");
-            NET_publish_response(CmdId, 0, "bad feeding value");
+            NET_publish_response(CmdId, 0, "\xE6\x8A\x95\xE5\x96\x82\xE5\x8F\x82\xE6\x95\xB0\xE6\x97\xA0\xE6\x95\x88");
             return;
         }
 
@@ -246,7 +246,7 @@ if (!g_feed_scale_on) {
             /* 首次上电查询到有效重量前不允许启动投喂 */
             if (feedScaleGetWeight() == 0) {
                 log_warn("> 继电器: 拒绝启动投喂，重量未就绪");
-                NET_publish_response(CmdId, 0, "weight not ready");
+                NET_publish_response(CmdId, 0, "\xE9\x87\x8D\xE9\x87\x8F\xE6\x9C\xAA\xE5\xB0\xB1\xE7\xBB\xAA\xE6\x9A\x82\xE4\xB8\x8D\xE8\x83\xBD\xE6\x8A\x95\xE5\x96\x82");
                 return;
             }
             /* 优先使用本次指令中携带的 onceWt, 否则使用 EEPROM 保存的值 */
@@ -259,7 +259,7 @@ if (!g_feed_scale_on) {
             }
             if (once_wt_100g == 0) {
                 log_warn("> 继电器: 无 onceWt 单次投喂量，已忽略");
-                NET_publish_response(CmdId, 0, "no onceWt");
+                NET_publish_response(CmdId, 0, "\xE7\xBC\xBA\xE5\xB0\x91\xE5\x8D\x95\xE6\xAC\xA1\xE6\x8A\x95\xE5\x96\x82\xE9\x87\x8F\xE5\x8F\x82\xE6\x95\xB0");
                 return;
             }
             log_info("> 继电器: 开始投喂，onceWt=%.1fKG", (float)once_wt_100g / 10.0f);
@@ -273,7 +273,7 @@ if (!g_feed_scale_on) {
 if (!g_feed_scale_on) {
         /* 无秤模式：无单次投喂量概念，拒绝设置 */
         log_warn("> 继电器: 拒绝设置 onceWt（无秤）");
-        NET_publish_response(CmdId, 0, "no scale on this device");
+        NET_publish_response(CmdId, 0, "\xE6\x9C\xAC\xE8\xAE\xBE\xE5\xA4\x87\xE6\x97\xA0\xE7\xA7\xB0\xE9\x87\x8D\xE7\xA7\xA4");
         return;
 } else {
         /* 单独设置单次投喂量, 持久化到 EEPROM */
@@ -281,7 +281,7 @@ if (!g_feed_scale_on) {
         proto_get_kg100((char *)data, "onceWt", &once_wt_100g);
         if (once_wt_100g == 0 || once_wt_100g > 5000) {
             log_warn("> 继电器: onceWt 无效");
-            NET_publish_response(CmdId, 0, "invalid onceWt");
+            NET_publish_response(CmdId, 0, "\xE5\x8D\x95\xE6\xAC\xA1\xE6\x8A\x95\xE5\x96\x82\xE9\x87\x8F\xE6\x97\xA0\xE6\x95\x88");
             return;
         }
         feedScaleSetOnceWeight(once_wt_100g);
@@ -293,7 +293,7 @@ if (!g_feed_scale_on) {
 if (!g_feed_scale_on) {
         /* 无秤模式：无去皮/空载重量概念，拒绝设置 */
         log_warn("> 继电器: 拒绝设置 zero（无秤）");
-        NET_publish_response(CmdId, 0, "no scale on this device");
+        NET_publish_response(CmdId, 0, "\xE6\x9C\xAC\xE8\xAE\xBE\xE5\xA4\x87\xE6\x97\xA0\xE7\xA7\xB0\xE9\x87\x8D\xE7\xA7\xA4");
         return;
 } else {
         /* 平台下发空载重量/去皮值，直接解析 value 并保存 */
@@ -301,7 +301,7 @@ if (!g_feed_scale_on) {
         proto_get_kg100((char *)data, "zero", &zero_100g);
         if (zero_100g == 0 || zero_100g > 5000) {
             log_warn("> 继电器: zero 无效");
-            NET_publish_response(CmdId, 0, "invalid zero");
+            NET_publish_response(CmdId, 0, "\xE5\x8E\xBB\xE7\x9A\xAE\xE5\x80\xBC\xE6\x97\xA0\xE6\x95\x88");
             return;
         }
         feedScaleSetZero(zero_100g);