diff --git a/Core/Modbus/modbus.h b/Core/Modbus/modbus.h
index d23e8a9..c0e0a93 100644
--- a/Core/Modbus/modbus.h
+++ b/Core/Modbus/modbus.h
@@ -37,7 +37,7 @@
 #define	Addr_SIZE								2						///< size of (Addr)
 #define Qnt_SIZE								2						///< size of (Qnt)
 #define ByteCnt_SIZE						1						///< size of (ByteCnt)
-#define DATA_SIZE 							125 				///< maximum number of data: DWORD (NOT MESSAGE SIZE)
+#define DATA_SIZE 							27 				///< maximum number of data: DWORD (NOT MESSAGE SIZE)
 #define CRC_SIZE 								2 					///< size of (MB_CRC) in bytes
 
 /** @brief Size of whole message */
diff --git a/Core/Src/main.c b/Core/Src/main.c
index caf6fef..ad5f059 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -54,11 +54,11 @@ int main(void)
   HAL_TIM_Base_Start(&htim1);
   MX_USART1_UART_Init();
   
-//  MODBUS_FirstInit();
-//  RS_Receive_IT(&hmodbus1, &MODBUS_MSG);
+  MODBUS_FirstInit();
+  RS_Receive_IT(&hmodbus1, &MODBUS_MSG);
   
 
-  PCHSens_FirstInit();
+//  PCHSens_FirstInit();
   /* infinite loop */
   while (1)
   {
diff --git a/Core/Src/py32f002b_it.c b/Core/Src/py32f002b_it.c
index b373ee9..08dbf89 100644
--- a/Core/Src/py32f002b_it.c
+++ b/Core/Src/py32f002b_it.c
@@ -75,23 +75,23 @@ void SysTick_Handler(void)
   HAL_IncTick();
 }
 
-//#include "rs_message.h"
-///**
-//  * @brief This function handles USART1.
-//  */
-//void USART1_IRQHandler(void)
-//{
-//  RS_UART_Handler(&hmodbus1);
-//}
+#include "rs_message.h"
+/**
+  * @brief This function handles USART1.
+  */
+void USART1_IRQHandler(void)
+{
+  RS_UART_Handler(&hmodbus1);
+}
 
-///**
-//  * @brief This function handles TIM2 global interrupt.
-//  */
-//void TIM14_IRQHandler(void)
-//{
-//  /* USER CODE BEGIN TIM2_IRQn 0 */
-//	RS_TIM_Handler(&hmodbus1);
-//}
+/**
+  * @brief This function handles TIM2 global interrupt.
+  */
+void TIM14_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM2_IRQn 0 */
+	RS_TIM_Handler(&hmodbus1);
+}
 /******************************************************************************/
 /* PY32F002B Peripheral Interrupt Handlers                                     */
 /* Add here the Interrupt Handlers for the used peripherals.                  */
diff --git a/MDK-ARM/PY32Dallas.uvprojx b/MDK-ARM/PY32Dallas.uvprojx
index 972e87b..8e69808 100644
--- a/MDK-ARM/PY32Dallas.uvprojx
+++ b/MDK-ARM/PY32Dallas.uvprojx
@@ -549,75 +549,6 @@
         </Group>
         <Group>
           <GroupName>Modbus</GroupName>
-          <GroupOption>
-            <CommonProperty>
-              <UseCPPCompiler>0</UseCPPCompiler>
-              <RVCTCodeConst>0</RVCTCodeConst>
-              <RVCTZI>0</RVCTZI>
-              <RVCTOtherData>0</RVCTOtherData>
-              <ModuleSelection>0</ModuleSelection>
-              <IncludeInBuild>0</IncludeInBuild>
-              <AlwaysBuild>2</AlwaysBuild>
-              <GenerateAssemblyFile>2</GenerateAssemblyFile>
-              <AssembleAssemblyFile>2</AssembleAssemblyFile>
-              <PublicsOnly>2</PublicsOnly>
-              <StopOnExitCode>11</StopOnExitCode>
-              <CustomArgument></CustomArgument>
-              <IncludeLibraryModules></IncludeLibraryModules>
-              <ComprImg>1</ComprImg>
-            </CommonProperty>
-            <GroupArmAds>
-              <Cads>
-                <interw>2</interw>
-                <Optim>0</Optim>
-                <oTime>2</oTime>
-                <SplitLS>2</SplitLS>
-                <OneElfS>2</OneElfS>
-                <Strict>2</Strict>
-                <EnumInt>2</EnumInt>
-                <PlainCh>2</PlainCh>
-                <Ropi>2</Ropi>
-                <Rwpi>2</Rwpi>
-                <wLevel>0</wLevel>
-                <uThumb>2</uThumb>
-                <uSurpInc>2</uSurpInc>
-                <uC99>2</uC99>
-                <uGnu>2</uGnu>
-                <useXO>2</useXO>
-                <v6Lang>0</v6Lang>
-                <v6LangP>0</v6LangP>
-                <vShortEn>2</vShortEn>
-                <vShortWch>2</vShortWch>
-                <v6Lto>2</v6Lto>
-                <v6WtE>2</v6WtE>
-                <v6Rtti>2</v6Rtti>
-                <VariousControls>
-                  <MiscControls></MiscControls>
-                  <Define></Define>
-                  <Undefine></Undefine>
-                  <IncludePath></IncludePath>
-                </VariousControls>
-              </Cads>
-              <Aads>
-                <interw>2</interw>
-                <Ropi>2</Ropi>
-                <Rwpi>2</Rwpi>
-                <thumb>2</thumb>
-                <SplitLS>2</SplitLS>
-                <SwStkChk>2</SwStkChk>
-                <NoWarn>2</NoWarn>
-                <uSurpInc>2</uSurpInc>
-                <useXO>2</useXO>
-                <ClangAsOpt>0</ClangAsOpt>
-                <VariousControls>
-                  <MiscControls></MiscControls>
-                  <Define></Define>
-                  <Undefine></Undefine>
-                  <IncludePath></IncludePath>
-                </VariousControls>
-              </Aads>
-            </GroupArmAds>
-          </GroupOption>
           <Files>
             <File>
               <FileName>crc_algs.c</FileName>