diff --git a/CMakeLists.txt b/CMakeLists.txt
index 61a32303..b05912a2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -480,7 +480,7 @@ if (NOT CROSSTOOLS)
 			#target_link_libraries(pip_plugin pip)
 
 			add_executable(pip_test "main.cpp")
-			target_link_libraries(pip_test pip)
+			target_link_libraries(pip_test pip pip_io_utils)
 			if(sodium_FOUND)
 				add_executable(pip_cloud_test "main_picloud_test.cpp")
 				target_link_libraries(pip_cloud_test pip_cloud)
diff --git a/libs/io_utils/pipackedtcp.cpp b/libs/io_utils/pipackedtcp.cpp
new file mode 100644
index 00000000..d9efac7b
--- /dev/null
+++ b/libs/io_utils/pipackedtcp.cpp
@@ -0,0 +1,199 @@
+/*
+    PIP - Platform Independent Primitives
+	PIPackedTCP
+    Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "pipackedtcp.h"
+
+#include "piethernet.h"
+#include "piliterals.h"
+
+
+/** \class PIPackedTCP pipackedtcp.h
+ * \brief
+ * TCP packed channel
+ *
+ * \details
+ * \section PITCP_sec0 Synopsis
+ * %PIEthernet designed to work with IPv4 network via two protocols:
+ * UDP and TCP. This class allow you send and receive packets to/from
+ * another computer through network. Also it supports broadcast and
+ * multicast extensions.
+ *
+ * */
+
+
+PIPackedTCP::PIPackedTCP(Role role, const PINetworkAddress & addr): m_role(role) {
+	setMode(PIIODevice::ReadWrite);
+	packer.setCryptEnabled(false);
+	CONNECTL(&packer, packetReceiveEvent, [this](PIByteArray & data) {
+		PIMutexLocker ml(rec_mutex);
+		rec_queue.enqueue(data);
+	});
+	init();
+	setAddress(addr);
+}
+
+
+PIPackedTCP::~PIPackedTCP() {
+	stopAndWait();
+	if (client) client->stopAndWait();
+	if (eth) eth->stopAndWait();
+	piDeleteSafety(eth);
+}
+
+
+void PIPackedTCP::setAddress(const PINetworkAddress & addr) {
+	m_addr = addr;
+	setPath(m_addr.toString());
+}
+
+
+bool PIPackedTCP::isConnected() const {
+	if (m_role == Client) {
+		return eth->isConnected();
+	} else {
+		if (client) return client->isConnected();
+	}
+	return false;
+}
+
+
+bool PIPackedTCP::isConnecting() const {
+	if (m_role == Client) {
+		return eth->isConnecting();
+	} else {
+		if (client) return client->isConnecting();
+	}
+	return false;
+}
+
+
+void PIPackedTCP::init() {
+	if (client) client->stopAndWait();
+	if (eth) eth->stopAndWait();
+	piDeleteSafety(eth);
+	eth = new PIEthernet(m_role == Client ? PIEthernet::TCP_Client : PIEthernet::TCP_Server);
+	if (m_role == Client) {
+		eth->setReopenTimeout(100_ms);
+		packer.assignDevice(eth);
+		CONNECTL(eth, connected, [this]() {
+			packer.clear();
+			connected();
+		});
+		CONNECTL(eth, disconnected, [this](bool) {
+			packer.clear();
+			eth->connect(path(), true);
+			disconnected();
+		});
+	} else {
+		CONNECTL(eth, newConnection, [this](PIEthernet * c) {
+			if (client) client->stopAndWait();
+			piDeleteSafety(client);
+			client = c;
+			// piCout << "Server connected" << client;
+			packer.assignDevice(client);
+			CONNECTL(client, disconnected, [this](bool) {
+				packer.assignDevice(nullptr);
+				packer.clear();
+				disconnected();
+			});
+			client->startThreadedRead();
+			connected();
+		});
+	}
+}
+
+
+PIIODevice::DeviceInfoFlags PIPackedTCP::deviceInfoFlags() const {
+	return PIIODevice::Reliable;
+}
+
+
+PIString PIPackedTCP::constructFullPathDevice() const {
+	return PIString(m_role == Client ? "client" : "server") + ":" + path();
+}
+
+
+void PIPackedTCP::configureFromFullPathDevice(const PIString & full_path) {
+	PIStringList pl = full_path.split(":");
+	if (pl.size() >= 1) {
+		PIString p = pl[0].toLowerCase().left(1);
+		if (p == "c") m_role = Client;
+		if (p == "s") m_role = Server;
+		init();
+	}
+	PINetworkAddress addr("0.0.0.0", 13362);
+	if (pl.size() >= 2) {
+		if (pl[1].isNotEmpty()) addr.setIP(pl[1]);
+	}
+	if (pl.size() >= 3) {
+		if (pl[2].isNotEmpty()) addr.setPort(pl[2].toInt());
+	}
+	setAddress(addr);
+}
+
+
+ssize_t PIPackedTCP::readDevice(void * read_to, ssize_t max_size) {
+	PIMutexLocker ml(rec_mutex);
+	if (rec_queue.isNotEmpty()) {
+		auto d  = rec_queue.dequeue();
+		auto sz = piMin(max_size, d.size_s());
+		if (read_to) memcpy(read_to, d.data(), sz);
+		return sz;
+	}
+	return 0;
+}
+
+
+ssize_t PIPackedTCP::writeDevice(const void * data, ssize_t max_size) {
+	if (!isConnected()) return 0;
+	packer.send(PIByteArray(data, max_size));
+	// piCout << m_role << "write" << eth;
+	return max_size;
+	/*if (m_role == Client) {
+		return eth->write(data, max_size);
+	} else {
+		if (client) return client->write(data, max_size);
+	}*/
+}
+
+
+bool PIPackedTCP::openDevice() {
+	if (m_role == Client) {
+		if (eth->isConnected()) return true;
+		if (eth->isConnecting()) return false;
+		packer.clear();
+		bool ret = eth->connect(path(), false);
+		eth->startThreadedRead();
+		return ret;
+	} else {
+		return eth->listen(path(), false);
+	}
+	return false;
+}
+
+
+bool PIPackedTCP::closeDevice() {
+	if (client) {
+		client->close();
+		client->stopAndWait();
+		piDeleteSafety(client);
+		packer.assignDevice(nullptr);
+	}
+	return eth->close();
+}
diff --git a/libs/main/io_devices/piiodevice.cpp b/libs/main/io_devices/piiodevice.cpp
index 7c06b4a6..654b1a10 100644
--- a/libs/main/io_devices/piiodevice.cpp
+++ b/libs/main/io_devices/piiodevice.cpp
@@ -569,15 +569,14 @@ PIStringList PIIODevice::availableClasses() {
 
 
 void PIIODevice::registerDevice(PIConstChars prefix, PIConstChars classname, PIIODevice * (*fabric)()) {
+	// printf("registerDevice %s %s %d\n", prefix.data(), classname.data(), fabrics().size());
 	if (prefix.isEmpty()) return;
-	// printf("registerDevice %s %d %d\n", prefix, p.isEmpty(), fabrics().size());
-	if (!fabrics().contains(prefix)) {
-		FabricInfo fi;
-		fi.prefix         = prefix;
-		fi.classname      = classname;
-		fi.fabricator     = fabric;
-		fabrics()[prefix] = fi;
-	}
+	if (fabrics().contains(prefix)) return;
+	FabricInfo fi;
+	fi.prefix         = prefix;
+	fi.classname      = classname;
+	fi.fabricator     = fabric;
+	fabrics()[prefix] = fi;
 }
 
 
diff --git a/libs/main/io_utils/piioutilsmodule.h b/libs/main/io_utils/piioutilsmodule.h
index 7baee2d3..462e09e8 100644
--- a/libs/main/io_utils/piioutilsmodule.h
+++ b/libs/main/io_utils/piioutilsmodule.h
@@ -57,6 +57,7 @@
 #include "pidatatransfer.h"
 #include "pidiagnostics.h"
 #include "pifiletransfer.h"
+#include "pipackedtcp.h"
 #include "pipacketextractor.h"
 #include "piparsehelper.h"
 
diff --git a/libs/main/io_utils/pipackedtcp.h b/libs/main/io_utils/pipackedtcp.h
new file mode 100644
index 00000000..d5d66d3a
--- /dev/null
+++ b/libs/main/io_utils/pipackedtcp.h
@@ -0,0 +1,90 @@
+/*! \file pipackedtcp.h
+ * \ingroup IO-Utils
+ * \~\brief
+ * \~english Ethernet device
+ * \~russian Устройство Ethernet
+ */
+/*
+    PIP - Platform Independent Primitives
+    Ethernet, UDP/TCP Broadcast/Multicast
+    Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef pipackedtcp_H
+#define pipackedtcp_H
+
+#include "piiodevice.h"
+#include "pinetworkaddress.h"
+#include "pip_io_utils_export.h"
+#include "pistreampacker.h"
+
+class PIEthernet;
+
+
+class PIP_IO_UTILS_EXPORT PIPackedTCP: public PIIODevice {
+	PIIODEVICE(PIPackedTCP, "ptcp");
+
+public:
+	//! \brief Role of %PIPackedTCP
+	enum Role {
+		Client /** TCP client */,
+		Server /** TCP server for one client */
+	};
+
+	//! Contructs %PIPackedTCP with "role" and "addr" address
+	explicit PIPackedTCP(Role role = Client, const PINetworkAddress & addr = {});
+
+	virtual ~PIPackedTCP();
+
+	//! Set server address for Server role or connect address for Client
+	void setAddress(const PINetworkAddress & addr);
+
+	bool isConnected() const;
+	bool isConnecting() const;
+
+	//! Returns read address in format "i.i.i.i:p"
+	PINetworkAddress address() const { return m_addr; }
+
+	//! Returns %PIEthernet type
+	Role role() const { return m_role; }
+
+	EVENT0(connected);
+	EVENT0(disconnected);
+
+protected:
+	void init();
+
+	DeviceInfoFlags deviceInfoFlags() const override;
+	PIString constructFullPathDevice() const override;
+	void configureFromFullPathDevice(const PIString & full_path) override;
+	ssize_t readDevice(void * read_to, ssize_t max_size) override;
+	ssize_t writeDevice(const void * data, ssize_t max_size) override;
+	bool openDevice() override;
+	bool closeDevice() override;
+
+	mutable PINetworkAddress m_addr;
+	Role m_role     = Client;
+	PIEthernet *eth = nullptr, *client = nullptr;
+	PIStreamPacker packer;
+	PIMutex rec_mutex;
+	PIQueue<PIByteArray> rec_queue;
+
+private:
+};
+
+REGISTER_DEVICE(PIPackedTCP)
+
+#endif
diff --git a/main.cpp b/main.cpp
index 8c575fc2..9c5d61ba 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,7 +2,6 @@
 #include "picodeparser.h"
 #include "piiostream.h"
 #include "pijson.h"
-#include "piliterals_time.h"
 #include "pimathbase.h"
 #include "pip.h"
 #include "pivaluetree_conversions.h"
@@ -17,7 +16,83 @@ enum MyEvent {
 	meIntString,
 };
 
+PITimeMeasurer tm;
+std::atomic_int cnt = {0};
+void tfunc(int delim) {
+	// piCout << "tick with delimiter" << delim;
+	++cnt;
+};
+void tfunc4(int delim) {
+	piCout << "tick4 with delimiter" << delim;
+};
+
+
 int main(int argc, char * argv[]) {
+	PIPackedTCP * tcp_s =
+		PIIODevice::createFromFullPath("ptcp://s::8000")->cast<PIPackedTCP>(); // new PIPackedTCP(PIPackedTCP::Server, {"0.0.0.0:8000"});
+	PIPackedTCP * tcp_c = PIIODevice::createFromFullPath("ptcp://c:127.0.0.1:8000")
+							  ->cast<PIPackedTCP>();                           // new PIPackedTCP(PIPackedTCP::Client, {"127.0.0.1:8000"});
+	piCout << tcp_s << tcp_c;
+	// CONNECTL(&tcp_s, opened, []() { piCout << "Srv opened"; });
+	// CONNECTL(&tcp_c, opened, []() { piCout << "Cli opened"; });
+	// CONNECTL(&tcp_s, closed, []() { piCout << "Srv closed"; });
+	// CONNECTL(&tcp_c, closed, []() { piCout << "Cli closed"; });
+	CONNECTL(tcp_s, connected, []() { piCout << "Srv conn"; });
+	CONNECTL(tcp_c, connected, []() { piCout << "Cli conn"; });
+	CONNECTL(tcp_s, disconnected, []() { piCout << "Srv disconn"; });
+	CONNECTL(tcp_c, disconnected, []() { piCout << "Cli disconn"; });
+	CONNECTL(tcp_s, threadedReadEvent, [](const uchar * readed, ssize_t size) {
+		PIByteArray d(readed, size);
+		piCout << "Srv readed" << d;
+	});
+	CONNECTL(tcp_c, threadedReadEvent, [](const uchar * readed, ssize_t size) {
+		PIByteArray d(readed, size);
+		piCout << "Cli readed" << d;
+	});
+	// tcp_s->open();
+	// tcp_c->open();
+	tcp_s->startThreadedRead();
+	tcp_c->startThreadedRead();
+	piForTimes(5) {
+		piCout << "\n1";
+		piMSleep(200);
+		piCout << "2";
+		// tcp_c->close();
+		piCout << "2+";
+		// tcp_s->close();
+		piCout << "3";
+		// tcp_c->open();
+		piCout << "3+";
+		// tcp_s->open();
+		piCout << "4";
+		piMSleep(500);
+		// piCout << "5";
+		tcp_c->write("1234567890"_a.toByteArray());
+		// piCout << "6";
+		tcp_s->write("1234567890"_a.toByteArray());
+		// piCout << "7";
+		piMSleep(200);
+	}
+	// piCout << &tcp_s;
+	// piCout << tcp_s->path();
+	// piCout << tcp_s->constructFullPath();
+	delete tcp_s;
+	delete tcp_c;
+	return 0;
+	/*PITimer timer(tfunc);
+	// timer.addDelimiter(2);
+	timer.addDelimiter(40, tfunc4);
+
+	tm.reset();
+	timer.start(0.5_Hz);
+	piMSleep(2200);
+	piCout << tm.elapsed_m() << cnt;
+
+	timer.stop();
+	timer.waitForFinish();
+	return 0;*/
+
+
 	bool posted;
 	PIStateMachine * root = new PIStateMachine("Machine");
 	root->addOnFinish([] { piCout << "finish"; });
@@ -49,9 +124,10 @@ int main(int argc, char * argv[]) {
 	s2->setInitialState(s21);
 	s21->setInitialState(s213);
 
-	s213->addTransition(s13, meVoid)->addAction([] { piCout << "action transition s21 -> s22"; });
-	s3->addTransition(s212, meVoid)->addAction([] { piCout << "action transition s1 -> s213"; });
-	// s2->addTransition(s3, meInt)->addGuard([](int i) { return i == 1; });
+	// s213->addTransition(s13, meVoid)->addAction([] { piCout << "action transition s21 -> s22"; });
+	// s3->addTransition(s212, meVoid)->addAction([] { piCout << "action transition s1 -> s213"; });
+	s2->addTransition(s3, meVoid);
+	s2->addTimeoutTransition(s3, .5_s);
 	// s3->addTransition(s1, meIntString)->addGuard([](int i, PIString str) { return i == 2 && str == "hello"; });
 
 	root->start();
@@ -59,10 +135,11 @@ int main(int argc, char * argv[]) {
 	piCout << "active atomics" << root->activeAtomics();
 	root->print();
 
-	piCout << "\npost event";
-	posted = root->postEvent(meVoid);
-	piCout << "posted" << posted << "\n";
-	piCout << "active atomics" << root->activeAtomics();
+	// piCout << "\npost event";
+	// posted = root->postEvent(meVoid);
+	// piCout << "posted" << posted << "\n";
+	// piCout << "active atomics" << root->activeAtomics();
+	piSleep(1.);
 	root->print();
 
 	// piCout << "\npost event";
diff --git a/utils/crypt_tool/main.cpp b/utils/crypt_tool/main.cpp
index 8d4ec3b7..57fdb8b0 100644
--- a/utils/crypt_tool/main.cpp
+++ b/utils/crypt_tool/main.cpp
@@ -17,8 +17,9 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "picli.h"
 #include "picrypt.h"
-#include "pip.h"
+#include "pifile.h"
 
 #include <stdio.h>
 
diff --git a/utils/system_test/main.cpp b/utils/system_test/main.cpp
index e62ec337..59ab539a 100755
--- a/utils/system_test/main.cpp
+++ b/utils/system_test/main.cpp
@@ -17,8 +17,9 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "pip.h"
+#include "piconfig.h"
 #include "pisystemtests.h"
+#include "pisystemtime.h"
 #ifdef CC_GCC
 #  include <unistd.h>
 #endif