diff --git a/README.md b/README.md
index c1a0936..8b19af0 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,9 @@
     V202
       1. 添加新设备DT600B的支持
 
+    V203
+      1. 修改协议 kfn_disinfectant_bucket_level_sensor_read_level 名称和定义
+      2. 修复部分BUG
 ```
 
 ```c
@@ -54,7 +57,7 @@ BoardTypeId:
   kDrawBarDMExtBallValveCtrl   = 0x9,   // 手持拉杆箱消毒机外部球阀控制板
   kH2O2SensorBoard             = 0xA,  // H2O2传感器板
 
-  DT600B_LC_BOARD              = 0x61,
-  DT600B_PC_BOARD              = 0x62,
+  DT600B_LC_BOARD              = 0x61,//大空间标准版 液路
+  DT600B_PC_BOARD              = 0x62,//大空间标准版 电源
 
 ```
\ No newline at end of file
diff --git a/app_protocols/transmit_disfection_protocol b/app_protocols/transmit_disfection_protocol
index a779858..613751c 160000
--- a/app_protocols/transmit_disfection_protocol
+++ b/app_protocols/transmit_disfection_protocol
@@ -1 +1 @@
-Subproject commit a77985829c2972df6bf04a8a2195431559acff75
+Subproject commit 613751c12e7df7f0e4deb9d56cfa22bc2555ca70
diff --git a/usrc/app/dmapp.cpp b/usrc/app/dmapp.cpp
index b0adb47..1196d24 100644
--- a/usrc/app/dmapp.cpp
+++ b/usrc/app/dmapp.cpp
@@ -207,17 +207,27 @@ void DisinfectionApp::initialize() {
     }
 
     if (io0enable || io1enable || io2enable) {
-      REG_LAMADA_FN(kfn_liquid_level_read_io_state, [&](ProcessContext* cxt) {
+      REG_LAMADA_FN(kfn_disinfectant_bucket_level_sensor_read_level, [&](ProcessContext* cxt) {
         int32_t liquid_level_state = 0;
-        if (io0enable) {
-          liquid_level_state |= (io0.read() ? 0 : 1) << 0;  // bit0:低液位置
-        }
-        if (io1enable) {
-          liquid_level_state |= (io1.read() ? 0 : 1) << 1;  // bit1:中液位
-        }
-        if (io2enable) {
-          liquid_level_state |= (io2.read() ? 0 : 1) << 2;  // bit2:高液位
+
+        bool io0state = false;
+        bool io1state = false;
+        bool io2state = false;
+
+        if (io0enable) io0state = io0.read();
+        if (io1enable) io1state = io1.read();
+        if (io2enable) io2state = io2.read();
+
+        if (io2state) {
+          liquid_level_state = 3;  // 液位最高
+        } else if (io1state) {
+          liquid_level_state = 2;  // 液位中等
+        } else if (io0state) {
+          liquid_level_state = 1;  // 液位最低
+        } else {
+          liquid_level_state = 0;  // 无液位
         }
+
         zcanbus_send_ack(cxt->packet, liquid_level_state);
       });
     }
diff --git a/usrc/app_main.cpp b/usrc/app_main.cpp
index 63fba3a..a3ba7dd 100644
--- a/usrc/app_main.cpp
+++ b/usrc/app_main.cpp
@@ -92,7 +92,8 @@ void umain() {
     case kSmallSpaceDMPowerCtrlBoard:
     case kPipeDMLiquidCtrlBoard:
     case kPipeDMPowerCtrlBoard:
-
+    case DT600B_LC_BOARD:
+    case DT600B_PC_BOARD:
       DisinfectionApp::ins()->initialize();
       break;
     case kDrawBarDMExtChSelector:
diff --git a/usrc/project_configs.h b/usrc/project_configs.h
index 88b85e1..ad95293 100644
--- a/usrc/project_configs.h
+++ b/usrc/project_configs.h
@@ -15,7 +15,7 @@
  * @brief 基础配置
  *
  */
-#define SOFTWARE_VERSION                   202                               // 软件版本
+#define SOFTWARE_VERSION                   203                               // 软件版本
 #define HARDWARE_VERSION                   1                                 // 硬件版本
 #define PROJECT                            "transmit_disinfection_micro_re"  // 工程名称
 #define SN_HEADER                          "SN"                              // SN号前缀