diff --git a/LinSensorTasks.c b/LinSensorTasks.c
index 90d2eda..c1ab47d 100644
--- a/LinSensorTasks.c
+++ b/LinSensorTasks.c
@@ -333,18 +333,16 @@ static void set_led_group(tCCU_DRS_Req *req, uint8_t led_group, uint8_t count) {
 static lin_event_id_t Lin5_Scheduler(tLin5TaskSensor *env) {
     lin_event_id_t ret = LIN_NO_EVENT;
 
-
-    for (uint8_t i = 0; i < LIN5_SENSOR_COUNT; ++i) {
-        set_led_group(&env->d_CCU_DRS_Req, i, env->linStateSensor.LED_COUNT[i]);
-    }
-    env->d_CCU_DRS_Req.BCM_SwIndIntens_Stat = 0;
-    env->d_CCU_DRS_Req.BCM_IndFadingTime_Req = 2;
-
-
     ret = Set_CCU_DRS_Req(env->linIo, env->linData, &env->d_CCU_DRS_Req);
 
-
     if (ret == LIN_TX_COMPLETED) {
+
+        for (uint8_t i = 0; i < LIN5_SENSOR_COUNT; ++i) {
+            set_led_group(&env->d_CCU_DRS_Req, i, env->linStateSensor.LED_COUNT[i]);
+        }
+        env->d_CCU_DRS_Req.BCM_SwIndIntens_Stat = 0;
+        env->d_CCU_DRS_Req.BCM_IndFadingTime_Req = 0;
+
 #if (LOG_LIN5_SENSOR == 1)
 
         if (*((uint32_t *) &env->d_CCU_DRS_Req) != *((uint32_t *) &env->d_old_CCU_DRS_Req)) {
@@ -361,53 +359,64 @@ static lin_event_id_t Lin5_Scheduler(tLin5TaskSensor *env) {
 #endif
     }
 
+    SystemDelayMs(50);
 
     for (uint8_t i = 0; i < LIN5_SENSOR_COUNT; ++i) {
 
-        ret = Get_DRS_Stat(env->linIo, env->linData, &env->linStateSensor.d_DRS_Stat[i], DRS_SENSON_ADR_Stat[i]);
+        if (env->linStateSensor.error_connect[i] == 0) {
 
-        if (env->linStateSensor.d_DRS_Stat[i].DRS_Btn_Stat) {
-            ++env->linStateSensor.LED_COUNT[i];
+            ret = Get_DRS_Stat(env->linIo, env->linData, &env->linStateSensor.d_DRS_Stat[i], DRS_SENSON_ADR_Stat[i]);
+
+            uint8_t current_btn_state = env->linStateSensor.d_DRS_Stat[i].DRS_Btn_Stat;
+
+            if ((current_btn_state) && (!env->linStateSensor.prev_btn_state[i])) {
+
+                if (env->linStateSensor.LED_COUNT[i] == 0) {
+                    env->linStateSensor.LED_COUNT[i] = 3;
+                } else {
+                    --env->linStateSensor.LED_COUNT[i];
+                }
 
-            if (env->linStateSensor.LED_COUNT[i] > 3) {
-                env->linStateSensor.LED_COUNT[i] = 0;
             }
-        }
+            env->linStateSensor.prev_btn_state[i] = current_btn_state;
 
-        env->linStateSensor.LinRespErr_Stat[i] = env->linStateSensor.d_DRS_Stat[i].DRS_LinRespErr_Stat;
-        env->linStateSensor.Err_Stat[i] = env->linStateSensor.d_DRS_Stat[i].DRS_Err_Stat;
+            env->linStateSensor.LinRespErr_Stat[i] = env->linStateSensor.d_DRS_Stat[i].DRS_LinRespErr_Stat;
+            env->linStateSensor.Err_Stat[i] = env->linStateSensor.d_DRS_Stat[i].DRS_Err_Stat;
 
-        if (ret == LIN_RX_COMPLETED) {
-            env->linStateSensor.error_connect[i] = 0;
+            if (ret == LIN_RX_COMPLETED) {
+                env->linStateSensor.error_connect[i] = 0;
 #if (LOG_LIN5_SENSOR == 1)
 
-            if ((*((uint8_t *) &env->linStateSensor.d_DRS_Stat[i]) !=
-                 *((uint8_t *) &env->linStateSensor.d_old_DRS_Stat[i])) ||
-                (env->linStateSensor.LED_COUNT[i] != env->linStateSensor.LED_OLD_COUNT[i])) {
+                if ((*((uint8_t *) &env->linStateSensor.d_DRS_Stat[i]) !=
+                     *((uint8_t *) &env->linStateSensor.d_old_DRS_Stat[i])) ||
+                    (env->linStateSensor.LED_COUNT[i] != env->linStateSensor.LED_OLD_COUNT[i])) {
 
-                *((uint8_t *) &env->linStateSensor.d_old_DRS_Stat[i]) = *((uint8_t *) &env->linStateSensor.d_DRS_Stat[i]);
-                env->linStateSensor.LED_OLD_COUNT[i] = env->linStateSensor.LED_COUNT[i];
+                    *((uint8_t *) &env->linStateSensor.d_old_DRS_Stat[i]) = *((uint8_t *) &env->linStateSensor.d_DRS_Stat[i]);
+                    env->linStateSensor.LED_OLD_COUNT[i] = env->linStateSensor.LED_COUNT[i];
 
-                LoggerFormatInfo(LOGGER, LOG_SIGN5,
-                                 "Sensor number %d: COUNT = %d DRS_Btn_Stat = %d DRS_LinRespErr_Stat = %d DRS_Err_Stat = %d",
-                                 i,
-                                 env->linStateSensor.LED_COUNT[i],
-                                 env->linStateSensor.d_DRS_Stat[i].DRS_Btn_Stat,
-                                 env->linStateSensor.d_DRS_Stat[i].DRS_LinRespErr_Stat,
-                                 env->linStateSensor.d_DRS_Stat[i].DRS_Err_Stat
-                )
-            }
+                    LoggerFormatInfo(LOGGER, LOG_SIGN5,
+                                     "Sensor number %d: COUNT = %d DRS_Btn_Stat = %d DRS_LinRespErr_Stat = %d DRS_Err_Stat = %d",
+                                     i,
+                                     env->linStateSensor.LED_COUNT[i],
+                                     env->linStateSensor.d_DRS_Stat[i].DRS_Btn_Stat,
+                                     env->linStateSensor.d_DRS_Stat[i].DRS_LinRespErr_Stat,
+                                     env->linStateSensor.d_DRS_Stat[i].DRS_Err_Stat
+                    )
+                }
 #endif
-        } else {
-            env->linStateSensor.error_connect[i] = 1;
+            } else {
+                env->linStateSensor.error_connect[i] = 1;
 #if (LOG_LIN5_SENSOR == 1)
-            if (env->linStateSensor.error_connect[i] != env->linStateSensor.error_old_connect[i]) {
-                env->linStateSensor.error_old_connect[i] = env->linStateSensor.error_connect[i];
-                LoggerFormatInfo(LOGGER, LOG_SIGN5, "Sensor number %d: ERROR Get_FPL_Stat = %d", i, ret)
-            }
+                if (env->linStateSensor.error_connect[i] != env->linStateSensor.error_old_connect[i]) {
+                    env->linStateSensor.error_old_connect[i] = env->linStateSensor.error_connect[i];
+                    LoggerFormatInfo(LOGGER, LOG_SIGN5, "Sensor number %d: ERROR Get_FPL_Stat = %d", i, ret)
+                }
 #endif
-        }
+            }
 
+            SystemDelayMs(50);
+
+        }
 
     }
 
@@ -424,6 +433,10 @@ void Lin_5_Init(tLin5TaskSensor *env,
     env->logger = logger;
     env->access = osMutexNew(NULL);
 
+    for (uint8_t i = 0; i < LIN5_SENSOR_COUNT; ++i) {
+        env->linStateSensor.LED_COUNT[i] = 3;
+    }
+
     InitThreadAtrStatic(&env->threadLin.attr, "Ln5", env->threadLin.controlBlock, env->threadLin.stack,
                         osPriorityNormal);
 }
@@ -454,7 +467,6 @@ static _Noreturn void Lin5_Thread(tLin5TaskSensor *env) {
             LoggerErrorStatic(LOGGER, LOG_SIGN5, "Access error Lin5_Thread");
         }
 
-        SystemDelayMs(50);
     }
 }
 
diff --git a/LinSensorTasks.h b/LinSensorTasks.h
index 99ef4da..3e03b20 100644
--- a/LinSensorTasks.h
+++ b/LinSensorTasks.h
@@ -259,6 +259,8 @@ typedef struct {
         uint8_t error_connect[LIN5_SENSOR_COUNT];
         uint8_t error_old_connect[LIN5_SENSOR_COUNT];
 
+        uint8_t prev_btn_state[LIN5_SENSOR_COUNT];
+
         uint8_t LinRespErr_Stat[LIN5_SENSOR_COUNT];
         uint8_t Err_Stat[LIN5_SENSOR_COUNT];
     } linStateSensor;