diff --git a/src/core/pitime.cpp b/src/core/pitime.cpp
index eeb94f49..8ee6cb3e 100755
--- a/src/core/pitime.cpp
+++ b/src/core/pitime.cpp
@@ -233,7 +233,7 @@ PISystemTime PISystemTime::current(bool precise_but_not_system) {
 		sft.dwHighDateTime = ft.dwHighDateTime - __pi_ftjan1970.dwHighDateTime;
 		if (ft.dwLowDateTime < __pi_ftjan1970.dwLowDateTime) {
 			sft.dwLowDateTime = ft.dwLowDateTime + (0xFFFFFFFF - __pi_ftjan1970.dwLowDateTime);
-			sft.dwHighDateTime++;
+			sft.dwHighDateTime--;
 		} else
 			sft.dwLowDateTime = ft.dwLowDateTime - __pi_ftjan1970.dwLowDateTime;
 		ullong lt = ullong(sft.dwHighDateTime) * 0x100000000U + ullong(sft.dwLowDateTime);
diff --git a/src/io/pibinarylog.cpp b/src/io/pibinarylog.cpp
index 96d0e4a0..dabb22c0 100644
--- a/src/io/pibinarylog.cpp
+++ b/src/io/pibinarylog.cpp
@@ -80,6 +80,16 @@ bool PIBinaryLog::openDevice() {
 	if (path().isEmpty() && mode_ == WriteOnly) {
 		setPath(getLogfilePath());
 	}
+	if (path().isEmpty() && mode_ == ReadOnly) {
+		PIDir ld(logDir());
+		if (ld.isExists()) {
+			PIVector<PIFile::FileInfo> es = ld.allEntries();
+			piForeachC(PIFile::FileInfo &i, es) {
+				if (i.extension() == "binlog" && i.isFile())
+					setPath(i.path);
+			}
+		}
+	}
 	if (!file.open(path(), mode_)) {
 		piCoutObj << "Error: Can't open file" << path();
 		return false;
@@ -129,6 +139,8 @@ bool PIBinaryLog::closeDevice() {
 
 
 bool PIBinaryLog::threadedRead(uchar *readed, int size) {
+//	piCout << "binlog threaded read";
+	if (!canRead() || isEnd()) return PIIODevice::threadedRead(readed, size);
 	is_thread_ok = false;
 	PISystemTime pt;
 	double delay;
@@ -136,6 +148,8 @@ bool PIBinaryLog::threadedRead(uchar *readed, int size) {
 	case PlayRealTime:
 		pt = PISystemTime::current() - startlogtime;
 		if (is_started) {
+			if ((lastrecord.timestamp - pt).toSeconds() > 100. || (lastrecord.timestamp - pt).toSeconds() < -100.)
+				piCoutObj << PISystemTime::current() << startlogtime << pt << lastrecord.timestamp << (lastrecord.timestamp - pt);
 			if (lastrecord.timestamp > pt)
 				(lastrecord.timestamp - pt).sleep();
 		} else {
diff --git a/src/io/piconnection.cpp b/src/io/piconnection.cpp
index d348b8e8..aee9e6de 100755
--- a/src/io/piconnection.cpp
+++ b/src/io/piconnection.cpp
@@ -1073,6 +1073,7 @@ void __DevicePool_threadReadDP(void * ddp) {
 	if (dd->dev == 0) {piMSleep(100); return;}
 	PIByteArray ba;
 	ba = dd->dev->read(dd->dev->threadedReadBufferSize());
+//	dd->dev->threadedRead(ba.data(), ba.size());
 	if (ba.isEmpty()) {piMSleep(10); return;}
 	dd->dev->threadedRead(ba.data(), ba.size_s());
 	//piCout << "Readed from" << dd->dev->path() << Hex << ba;
diff --git a/src/io/piiodevice.cpp b/src/io/piiodevice.cpp
index 449f7ebe..eb31cc62 100755
--- a/src/io/piiodevice.cpp
+++ b/src/io/piiodevice.cpp
@@ -319,3 +319,10 @@ PIString PIIODevice::normalizeFullPath(const PIString & full_path) {
 	nfp_cache[full_path] = ret;
 	return ret;
 }
+
+
+bool PIIODevice::threadedRead(uchar *readed, int size) {
+//	piCout << "iodevice threaded read";
+	if (ret_func_ != 0) return ret_func_(ret_data_, readed, size);
+	return true;
+}
diff --git a/src/io/piiodevice.h b/src/io/piiodevice.h
index 9a10688c..9bc75944 100755
--- a/src/io/piiodevice.h
+++ b/src/io/piiodevice.h
@@ -46,6 +46,7 @@ typedef bool (*ReadRetFunc)(void * , uchar * , int );
 
 #endif
 
+
 class PIP_EXPORT PIIODevice: public PIThread
 {
 	PIOBJECT_SUBCLASS(PIIODevice, PIThread)
@@ -293,7 +294,7 @@ protected:
 	virtual bool closeDevice() {return true;} // use path_, type_, opened_, init_ variables
 	
 	//! Function executed when thread read some data, default implementation execute external slot "ret_func_"
-	virtual bool threadedRead(uchar * readed, int size) {if (ret_func_ != 0) return ret_func_(ret_data_, readed, size); return true;}
+	virtual bool threadedRead(uchar * readed, int size);
 	
 	
 	//! Reimplement to configure your device with parameters of full unambiguous string. Default implementation does nothing
diff --git a/src/io/piserial.cpp b/src/io/piserial.cpp
index a5fe3b16..f94d60d0 100755
--- a/src/io/piserial.cpp
+++ b/src/io/piserial.cpp
@@ -623,7 +623,7 @@ int PISerial::read(void * read_to, int max_size) {
 		if (!canRead()) return -1;
 		if (sending) return -1;
 //		piCoutObj << "com event ...";
-		WaitCommEvent(PRIVATE->hCom, 0, 0);
+		//WaitCommEvent(PRIVATE->hCom, 0, 0);
 //		piCoutObj << "read ...";
 		ReadFile(PRIVATE->hCom, read_to, max_size, &PRIVATE->readed, 0);
 //		piCoutObj << "read ok";