diff --git a/api.php b/api.php
index 690e45a..e7158cc 100644
--- a/api.php
+++ b/api.php
@@ -11,6 +11,9 @@ foreach (["class", "views"] as $dir) {
 	}
 }
 
+//Log
+$logManager = new LogManager();
+
 //DB Conector
 Db::connect (DBHOST, DBUSER, DBPASS, DBNAME);
 
@@ -38,6 +41,7 @@ if (DEBUGMOD != 1) {
 			'errorMSG' => "Using API from your IP insn´t alowed!",
 		));
 		header("HTTP/1.1 401 Unauthorized");
+		$logManager->write("acces denied from " . $_SERVER['REMOTE_ADDR'], LogRecordType::WARNING);
 		exit();
 	}
 }
@@ -74,6 +78,7 @@ if (!DeviceManager::registeret($token)) {
 		'state' => 'unsuccess',
 		'errorMSG' => "Device not registeret",
 	));
+	$logManager->write("Registering Device", LogRecordType::INFO);
 	exit();
 }
 
@@ -86,16 +91,6 @@ if (!DeviceManager::approved($token)) {
 	exit();
 }
 
-if (!DeviceManager::approved($token)) {
-	header("HTTP/1.1 401 Unauthorized");
-	echo json_encode(array(
-		'state' => 'unsuccess',
-		'errorMSG' => "Unaproved Device",
-	));
-	exit();
-}
-
-
 // Subdevices first data!
 if ($values != null || $values != "") {
 
@@ -107,6 +102,7 @@ if ($values != null || $values != "") {
 			SubDeviceManager::create($deviceId, $key, UNITS[$key]);
 		}
 		RecordManager::create($deviceId, $key, round($value['value'],2));
+		$logManager->write("Device_ID " . $deviceId . " writed value " . $key . $value['value'], LogRecordType::INFO);
 	}
 
 	$hostname = strtolower($device['name']);
@@ -127,15 +123,17 @@ if ($values != null || $values != "") {
 
 		if (count(SubDeviceManager::getAllSubDevices($deviceId)) == 0) {
 			SubDeviceManager::create($deviceId, 'on/off', UNITS[$key]);
-			RecordManager::create($deviceId, 'on/off', 0);
+			//RecordManager::create($deviceId, 'on/off', 0);
 		}
 
 		$subDeviceId = SubDeviceManager::getAllSubDevices($deviceId)[0]['subdevice_id'];
-
 		$subDeviceLastReord = RecordManager::getLastRecord($subDeviceId);
 		$subDeviceLastReordValue = $subDeviceLastReord['value'];
 
-		RecordManager::setExecuted($subDeviceLastReord['record_id']);
+		if ($subDeviceLastReord['execuded'] == 0){
+			$logManager->write("subDevice id ".$subDeviceId . " executed comand with value " .$subDeviceLastReordValue . " record id " . $subDeviceLastReord['record_id'] . " executed " . $subDeviceLastReord['execuded']);
+			RecordManager::setExecuted($subDeviceLastReord['record_id']);
+		}
 
 		echo json_encode(array(
 			'device' => [
@@ -148,5 +146,6 @@ if ($values != null || $values != "") {
 			header("HTTP/1.1 200 OK");
 		}
 
+		unset($logManager);
 		Db::disconect();
 		die();
diff --git a/class/LogManager.php b/class/LogManager.php
new file mode 100644
index 0000000..678524d
--- /dev/null
+++ b/class/LogManager.php
@@ -0,0 +1,38 @@
+<?php
+/**
+*
+*/
+
+class LogRecordType{
+	const WARNING = 'warning';
+	const ERROR = 'error';
+	const INFO = 'info';
+}
+
+class LogManager
+{
+
+	private $logFile;
+	function __construct($fileName = "")
+	{
+		if ($fileName == ""){
+			$fileName = './logs/'. date("Y-m-d").'.log';
+		}
+		if(!is_dir("./logs/"))
+		{
+			mkdir("./logs/");
+		}
+		$this->logFile = fopen($fileName, "a") or die("Unable to open file!");
+	}
+
+	function write($value, $type = LogRecordType::ERROR){
+		$record = "[".date("H:m:s")."][".$type."]" .$value . "\n";
+		fwrite($this->logFile, $record);
+	}
+
+	function __destruct(){
+		if (isset($this->logFile)) {
+			fclose($this->logFile);
+		}
+	}
+}
diff --git a/index.php b/index.php
index 32561fb..f6b836f 100644
--- a/index.php
+++ b/index.php
@@ -43,6 +43,8 @@ $userManager = new UserManager();
 if (isset($_POST['username']) && isset($_POST['password']) ) {
 	$userManager->login($_POST['username'], $_POST['password'], $_POST['remember']);
 }
+
+$logManager = new LogManager();
 /*
 $form = new Form('name','1','POST','');
 $form->addInput(InputTypes::TEXT,'nadpis','','Label','');