diff --git a/slsReceiverSoftware/include/UDPBaseImplementation.h b/slsReceiverSoftware/include/UDPBaseImplementation.h
index 60e07ef64..f576e2666 100644
--- a/slsReceiverSoftware/include/UDPBaseImplementation.h
+++ b/slsReceiverSoftware/include/UDPBaseImplementation.h
@@ -154,6 +154,13 @@ class UDPBaseImplementation : protected virtual slsReceiverDefs, public UDPInter
 	 */
 	uint32_t getFrameToGuiFrequency() const;
 
+	/**
+	 * Get the data stream enable
+	 * @return 1 to send via zmq, else 0
+	 */
+	uint32_t getDataStreamEnable() const;
+
+
 	/**
 	 * Get Acquisition Period
 	 * @return acquisition period
@@ -298,10 +305,17 @@ class UDPBaseImplementation : protected virtual slsReceiverDefs, public UDPInter
 
 	/**
 	 * Set the Frequency of Frames Sent to GUI
-	 * @param i 0 for random frame requests, n for nth frame frequency
+	 * @param freq 0 for random frame requests, n for nth frame frequency
 	 * @return OK or FAIL
 	 */
-	int setFrameToGuiFrequency(const uint32_t i);
+	int setFrameToGuiFrequency(const uint32_t freq);
+
+	/**
+	 * Set the data stream enable
+	 * @param enable 0 to disable, 1 to enable
+	 * @return OK or FAIL
+	 */
+	uint32_t setDataStreamEnable(const uint32_t enable);
 
 	/**
 	 * Set Acquisition Period
@@ -525,7 +539,9 @@ class UDPBaseImplementation : protected virtual slsReceiverDefs, public UDPInter
 	/* Short Frame Enable or index of adc enabled, else -1 if all enabled (gotthard specific) TODO: move to setROI */
 	int shortFrameEnable;
 	/** Frequency of Frames sent to GUI */
-	uint32_t FrameToGuiFrequency;
+	uint32_t frameToGuiFrequency;
+	/** Data Stream Enable from Receiver */
+	int32_t dataStreamEnable;
 
 
 
diff --git a/slsReceiverSoftware/include/UDPInterface.h b/slsReceiverSoftware/include/UDPInterface.h
index 754aa5bd7..9ef30c680 100644
--- a/slsReceiverSoftware/include/UDPInterface.h
+++ b/slsReceiverSoftware/include/UDPInterface.h
@@ -214,6 +214,12 @@ class UDPInterface {
 	 */
 	virtual uint32_t getFrameToGuiFrequency() const = 0;
 
+	/**
+	 * Get the data stream enable
+	 * @return 1 to send via zmq, else 0
+	 */
+	virtual uint32_t getDataStreamEnable() const = 0;
+
 	/**
 	 * Get Acquisition Period
 	 * @return acquisition period
@@ -355,10 +361,17 @@ class UDPInterface {
 
 	/**
 	 * Set the Frequency of Frames Sent to GUI
-	 * @param i 0 for random frame requests, n for nth frame frequency
+	 * @param freq 0 for random frame requests, n for nth frame frequency
 	 * @return OK or FAIL
 	 */
-	virtual int setFrameToGuiFrequency(const uint32_t i) = 0;
+	virtual int setFrameToGuiFrequency(const uint32_t freq) = 0;
+
+	/**
+	 * Set the data stream enable
+	 * @param enable 0 to disable, 1 to enable
+	 * @return OK or FAIL
+	 */
+	virtual uint32_t setDataStreamEnable(const uint32_t enable) = 0;
 
 	/**
 	 * Set Acquisition Period
diff --git a/slsReceiverSoftware/include/UDPStandardImplementation.h b/slsReceiverSoftware/include/UDPStandardImplementation.h
index 15efda79f..18f9e546f 100644
--- a/slsReceiverSoftware/include/UDPStandardImplementation.h
+++ b/slsReceiverSoftware/include/UDPStandardImplementation.h
@@ -107,12 +107,18 @@ class UDPStandardImplementation: private virtual slsReceiverDefs, public UDPBase
 	void setShortFrameEnable(const int i);
 
 	/**
-	 * Overridden method
 	 * Set the Frequency of Frames Sent to GUI
-	 * @param i 0 for random frame requests, n for nth frame frequency
+	 * @param freq 0 for random frame requests, n for nth frame frequency
 	 * @return OK or FAIL
 	 */
-	int setFrameToGuiFrequency(const uint32_t i);
+	int setFrameToGuiFrequency(const uint32_t freq);
+
+	/**
+	 * Set the data stream enable
+	 * @param enable 0 to disable, 1 to enable
+	 * @return OK or FAIL
+	 */
+	uint32_t setDataStreamEnable(const uint32_t enable);
 
 	/**
 	 * Overridden method
@@ -702,7 +708,6 @@ private:
 	/** Set to self-terminate data callback threads waiting for semaphores */
 	bool killAllDataCallbackThreads;
 
-	bool dataCallbackEnabled;
 
 
 	//***general and listening thread parameters***
diff --git a/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h b/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
index 8b5c4527f..8b30be84f 100644
--- a/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
+++ b/slsReceiverSoftware/include/slsReceiverTCPIPInterface.h
@@ -176,6 +176,9 @@ private:
 	/** Sets the receiver to send every nth frame to gui, or only upon gui request */
 	int set_read_frequency();
 
+	/* Set the data stream enable */
+	int set_data_stream_enable();
+
 	/** Enable File Write*/
 	int enable_file_write();
 
diff --git a/slsReceiverSoftware/include/sls_receiver_funcs.h b/slsReceiverSoftware/include/sls_receiver_funcs.h
index e1ef93040..cc3490c42 100644
--- a/slsReceiverSoftware/include/sls_receiver_funcs.h
+++ b/slsReceiverSoftware/include/sls_receiver_funcs.h
@@ -49,7 +49,9 @@ enum {
 	F_ENABLE_RECEIVER_OVERWRITE,		/**< set overwrite flag in receiver */
 
 	F_ENABLE_RECEIVER_TEN_GIGA,		/**< enable 10Gbe in receiver */
-	F_SET_RECEIVER_FIFO_DEPTH		/**< set receiver fifo depth */
+	F_SET_RECEIVER_FIFO_DEPTH,		/**< set receiver fifo depth */
+
+	F_STREAM_DATA_FROM_RECEIVER		/**< stream data from receiver to client */
 
 	/* Always append functions hereafter!!! */
 };
diff --git a/slsReceiverSoftware/src/UDPBaseImplementation.cpp b/slsReceiverSoftware/src/UDPBaseImplementation.cpp
index d4bbbcfbd..4032f27e8 100644
--- a/slsReceiverSoftware/src/UDPBaseImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPBaseImplementation.cpp
@@ -75,7 +75,8 @@ void UDPBaseImplementation::initializeMembers(){
 
 	//***acquisition parameters***
 	shortFrameEnable = -1;
-	FrameToGuiFrequency = 0;
+	frameToGuiFrequency = 0;
+	dataStreamEnable = false;
 }
 
 UDPBaseImplementation::~UDPBaseImplementation(){}
@@ -172,7 +173,9 @@ char *UDPBaseImplementation::getEthernetInterface() const{
 /***acquisition parameters***/
 int UDPBaseImplementation::getShortFrameEnable() const{	FILE_LOG(logDEBUG) << __AT__ << " starting";	return shortFrameEnable;}
 
-uint32_t UDPBaseImplementation::getFrameToGuiFrequency() const{	FILE_LOG(logDEBUG) << __AT__ << " starting";	return FrameToGuiFrequency;}
+uint32_t UDPBaseImplementation::getFrameToGuiFrequency() const{	FILE_LOG(logDEBUG) << __AT__ << " starting";	return frameToGuiFrequency;}
+
+uint32_t UDPBaseImplementation::getDataStreamEnable() const{	FILE_LOG(logDEBUG) << __AT__ << " starting";	return dataStreamEnable;}
 
 uint64_t UDPBaseImplementation::getAcquisitionPeriod() const{	FILE_LOG(logDEBUG) << __AT__ << " starting";	return acquisitionPeriod;}
 
@@ -314,16 +317,28 @@ void UDPBaseImplementation::setShortFrameEnable(const int i){
 	FILE_LOG(logINFO) << "Short Frame Enable: " << stringEnable(shortFrameEnable);
 }
 
-int UDPBaseImplementation::setFrameToGuiFrequency(const uint32_t i){
+int UDPBaseImplementation::setFrameToGuiFrequency(const uint32_t freq){
 	FILE_LOG(logDEBUG) << __AT__ << " starting";
 
-	FrameToGuiFrequency = i;
-	FILE_LOG(logINFO) << "Frame To Gui Frequency:" << FrameToGuiFrequency;
+	frameToGuiFrequency = freq;
+	FILE_LOG(logINFO) << "Frame To Gui Frequency:" << frameToGuiFrequency;
 
 	//overrridden child classes might return FAIL
 	return OK;
 }
 
+
+uint32_t UDPBaseImplementation::setDataStreamEnable(const uint32_t enable){
+	FILE_LOG(logDEBUG) << __AT__ << " starting";
+
+	dataStreamEnable = enable;
+	FILE_LOG(logINFO) << "Streaming Data from Receiver:" << dataStreamEnable;
+
+	//overrridden child classes might return FAIL
+	return OK;
+}
+
+
 int UDPBaseImplementation::setAcquisitionPeriod(const uint64_t i){
 	FILE_LOG(logDEBUG) << __AT__ << " starting";
 
diff --git a/slsReceiverSoftware/src/UDPStandardImplementation.cpp b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
index 7b31db4ae..22e9ef00c 100644
--- a/slsReceiverSoftware/src/UDPStandardImplementation.cpp
+++ b/slsReceiverSoftware/src/UDPStandardImplementation.cpp
@@ -195,7 +195,8 @@ void UDPStandardImplementation::initializeMembers(){
 	numberofDataCallbackThreads = 1;
 	dataCallbackThreadsMask = 0x0;
 	killAllDataCallbackThreads = false;
-	dataCallbackEnabled = true;  /**false*/
+	dataStreamEnable = false;
+
 
 	//***general and listening thread parameters***
 	threadStarted = false;
@@ -282,8 +283,8 @@ int UDPStandardImplementation::setupFifoStructure(){
 	//else calculate best possible number of frames to listen to at a time (for fast readouts like gotthard)
 	else{
 		//if frequency to gui is not random (every nth frame), then listen to only n frames per buffer
-		if(FrameToGuiFrequency)
-			numberofJobsPerBuffer = FrameToGuiFrequency;
+		if(frameToGuiFrequency)
+			numberofJobsPerBuffer = frameToGuiFrequency;
 		//random frame sent to gui, then frames per buffer depends on acquisition period
 		else{
 			//calculate 100ms/period to get frames to listen to at a time
@@ -445,17 +446,13 @@ void UDPStandardImplementation::setFileName(const char c[]){
 	}
 
 
-	if(dataCallbackEnabled && (strcmp(oldfilename,fileName))){cout<<"***Going to destroy data callback threads and create!!!"<<endl;
-		if(zmqThreadStarted){
+	if(dataStreamEnable && (strcmp(oldfilename,fileName))){
+		if(zmqThreadStarted)
 			createDataCallbackThreads(true);
-			zmqThreadStarted = false;
-		}
-		cout<<"***datacallback threads destroyed"<<endl;
 		numberofDataCallbackThreads = MAX_NUMBER_OF_LISTENING_THREADS;
 		if(createDataCallbackThreads() == FAIL){
 			cprintf(BG_RED,"Error: Could not create data callback threads\n");
 		}
-		cout<<"data call back threads created"<<endl;
 	}
 
 
@@ -552,19 +549,52 @@ void UDPStandardImplementation::setShortFrameEnable(const int i){
 }
 
 
-int UDPStandardImplementation::setFrameToGuiFrequency(const uint32_t i){
+int UDPStandardImplementation::setFrameToGuiFrequency(const uint32_t freq){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
-	FrameToGuiFrequency = i;
+	frameToGuiFrequency = freq;
 	if(setupFifoStructure() == FAIL)
 		return FAIL;
 
-	FILE_LOG(logINFO) << "Frame to Gui Frequency: " << FrameToGuiFrequency;
+	FILE_LOG(logINFO) << "Frame to Gui Frequency: " << frameToGuiFrequency;
 
 	return OK;
 }
 
 
+
+uint32_t UDPStandardImplementation::setDataStreamEnable(const uint32_t enable){
+	FILE_LOG(logDEBUG) << __AT__ << " called";
+
+
+	cout<<"************datasend:"<<enable<<endl;
+
+	int olddatasend = dataStreamEnable;
+	dataStreamEnable = enable;
+	//if there is a change
+	if(olddatasend != dataStreamEnable){
+		cout<<"***Going to destroy data callback threads and create!!!"<<endl;
+		if(zmqThreadStarted)
+			createDataCallbackThreads(true);
+		cout<<"***datacallback threads destroyed"<<endl;
+
+		if(dataStreamEnable){
+			numberofDataCallbackThreads = MAX_NUMBER_OF_LISTENING_THREADS;
+			if(createDataCallbackThreads() == FAIL){
+				cprintf(BG_RED,"Error: Could not create data callback threads\n");
+			}
+			cout<<"data call back threads created"<<endl;
+		}
+	}
+
+	FILE_LOG(logINFO) << "Data Send to Gui: " << dataStreamEnable;
+
+
+	return OK;
+}
+
+
+
 int UDPStandardImplementation::setAcquisitionPeriod(const uint64_t i){
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
@@ -839,7 +869,7 @@ int UDPStandardImplementation::setDetectorType(const detectorType d){
 	setupFifoStructure();
 
 	numberofDataCallbackThreads = MAX_NUMBER_OF_LISTENING_THREADS;
-	if(dataCallbackEnabled)
+	if(dataStreamEnable)
 		createDataCallbackThreads();
 
 	//allocate for latest data (frame copy for gui), free variables
@@ -939,8 +969,8 @@ int UDPStandardImplementation::startReceiver(char *c){
 	}
 	FILE_LOG(logINFO) << "Number of Jobs Per Buffer: " << numberofJobsPerBuffer;
 	FILE_LOG(logINFO) << "Max Frames Per File:" << maxFramesPerFile;
-	if(FrameToGuiFrequency)
-		FILE_LOG(logINFO) << "Frequency of frames sent to gui: " << FrameToGuiFrequency;
+	if(frameToGuiFrequency)
+		FILE_LOG(logINFO) << "Frequency of frames sent to gui: " << frameToGuiFrequency;
 	else
 		FILE_LOG(logINFO) << "Frequency of frames sent to gui: Random";
 
@@ -980,7 +1010,7 @@ int UDPStandardImplementation::startReceiver(char *c){
 		listeningThreadsMask|=(1<<i);
 	for(int i=0;i<numberofWriterThreads;i++)
 		writerThreadsMask|=(1<<i);
-	if(dataCallbackEnabled){
+	if(dataStreamEnable){
 		for(int i=0;i<numberofDataCallbackThreads;i++)
 			dataCallbackThreadsMask|=(1<<i);
 	}
@@ -992,7 +1022,7 @@ int UDPStandardImplementation::startReceiver(char *c){
 		sem_post(&listenSemaphore[i]);
 	for(int i=0; i < numberofWriterThreads; i++)
 		sem_post(&writerSemaphore[i]);
-	if(dataCallbackEnabled){
+	if(dataStreamEnable){
 		for(int i=0;i<numberofDataCallbackThreads;i++)
 			sem_post(&dataCallbackSemaphore[i]);
 	}
@@ -1639,8 +1669,7 @@ void UDPStandardImplementation::startDataCallback(){cprintf(MAGENTA,"start data
 
 	//set current thread value  index
 	int ithread = currentThreadIndex;
-	//let calling function know thread started and obtained current
-	zmqThreadStarted = 1;
+
 
     // server address to bind
     char hostName[100] = "tcp://127.0.0.1:";
@@ -1668,6 +1697,9 @@ void UDPStandardImplementation::startDataCallback(){cprintf(MAGENTA,"start data
 		// bind
 		zmq_bind(zmqsocket,hostName);
 
+		//let calling function know thread started and obtained current (after sockets created)
+		if(!zmqThreadStarted)
+			zmqThreadStarted = true;
 
 		currentfnum = -1;
 		/* inner loop - loop for each buffer */
@@ -2404,7 +2436,7 @@ void UDPStandardImplementation::stopWriting(int ithread, char* wbuffer){
 		cprintf(YELLOW,"Writing_Thread %d: Freeing dummy-end buffer. Pushed into fifofree %p for listener %d\n", ithread,(void*)(wbuffer),ithread);
 #endif
 
-	if(dataCallbackEnabled){
+	if(dataStreamEnable){
 		//ensure previous frame was processed
 		sem_wait(&writerGuiSemaphore[ithread]);
 		guiNumPackets[ithread] = dummyPacketValue;
@@ -2518,7 +2550,7 @@ void UDPStandardImplementation::handleWithoutDataCompression(int ithread, char*
 
 	//copy frame for gui
 	//if(npackets >= (packetsPerFrame/numberofListeningThreads))
-	if(dataCallbackEnabled && npackets)
+	if(dataStreamEnable && npackets)
 		copyFrameToGui(ithread, wbuffer,npackets);
 #ifdef DEBUG4
 	cprintf(GREEN,"Writing_Thread: Copied frame\n");
@@ -2700,7 +2732,7 @@ void UDPStandardImplementation::copyFrameToGui(int ithread, char* buffer, uint32
 	FILE_LOG(logDEBUG) << __AT__ << " called";
 
 	//if nthe frame, wait for your turn (1st frame always shown as its zero)
-	if(FrameToGuiFrequency && ((frametoGuiCounter[ithread])%FrameToGuiFrequency));
+	if(frameToGuiFrequency && ((frametoGuiCounter[ithread])%frameToGuiFrequency));
 
 	//random read (gui ready) or nth frame read: gui needs data now or it is the first frame
 	else{
@@ -2725,7 +2757,7 @@ void UDPStandardImplementation::copyFrameToGui(int ithread, char* buffer, uint32
 	}
 
 	//update the counter for nth frame
-	if(FrameToGuiFrequency)
+	if(frameToGuiFrequency)
 		frametoGuiCounter[ithread]++;
 
 
@@ -2852,7 +2884,7 @@ void UDPStandardImplementation::handleDataCompression(int ithread, char* wbuffer
 
 #endif
 			if(!once){
-				if(dataCallbackEnabled)
+				if(dataStreamEnable)
 					copyFrameToGui(ithread, buff[0],(uint32_t)packetsPerFrame);
 				once = 1;
 			}
diff --git a/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp b/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
index 1ee51c37d..ff39c681b 100644
--- a/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
+++ b/slsReceiverSoftware/src/slsReceiverTCPIPInterface.cpp
@@ -262,7 +262,7 @@ int slsReceiverTCPIPInterface::function_table(){
 
 	flist[F_ENABLE_RECEIVER_TEN_GIGA]		= 	&slsReceiverTCPIPInterface::enable_tengiga;
 	flist[F_SET_RECEIVER_FIFO_DEPTH]		= 	&slsReceiverTCPIPInterface::set_fifo_depth;
-
+	flist[F_STREAM_DATA_FROM_RECEIVER]		= 	&slsReceiverTCPIPInterface::set_data_stream_enable;
 
 #ifdef VERYVERBOSE
 	for (int i=0;i<numberOfFunctions;i++)
@@ -2096,22 +2096,23 @@ int slsReceiverTCPIPInterface::set_read_frequency(){
 		}
 		else if(receiverBase->getStatus()==RUNNING || receiverBase->getStatus()==TRANSMITTING){
 			strcpy(mess,"Can not set receiver frequency mode while receiver not idle\n");
+			cprintf(RED,"%s\n",mess);
 			ret = FAIL;
 		}
-		/*
-		else if((receiverBase->getStatus()==RUNNING) && (index >= 0)){
-			ret = FAIL;
-			strcpy(mess,"cannot set up receiver mode when receiver is running\n");
-		}*/
 		else{
-			if(index >= 0){
+			if(index >= 0 ){
 				ret = receiverBase->setFrameToGuiFrequency(index);
-				if(ret == FAIL)
+				if(ret == FAIL){
 					strcpy(mess, "Could not allocate memory for listening fifo\n");
+					cprintf(RED,"%s\n",mess);
+				}
 			}
 			retval=receiverBase->getFrameToGuiFrequency();
-			if(index>=0 && retval!=index)
+			if(index>=0 && retval!=index){
+				strcpy(mess,"Could not set frame to gui frequency");
+				cprintf(RED,"%s\n",mess);
 				ret = FAIL;
+			}
 		}
 	}
 
@@ -2138,6 +2139,69 @@ int slsReceiverTCPIPInterface::set_read_frequency(){
 
 
 
+int slsReceiverTCPIPInterface::set_data_stream_enable(){
+	ret=OK;
+	int retval=-1;
+	int index;
+	strcpy(mess,"Could not set data stream enable\n");
+
+
+	// receive arguments
+	if(socket->ReceiveDataOnly(&index,sizeof(index)) < 0 ){
+		strcpy(mess,"Error reading from socket\n");
+		ret = FAIL;
+	}
+
+	// execute action if the arguments correctly arrived
+#ifdef SLS_RECEIVER_UDP_FUNCTIONS
+	if (ret==OK) {
+		if (lockStatus==1 && socket->differentClients==1){
+			sprintf(mess,"Receiver locked by %s\n", socket->lastClientIP);
+			ret=FAIL;
+		}
+		else if (receiverBase == NULL){
+			strcpy(mess,SET_RECEIVER_ERR_MESSAGE);
+			ret=FAIL;
+		}
+		else if(receiverBase->getStatus()==RUNNING || receiverBase->getStatus()==TRANSMITTING){
+			strcpy(mess,"Can not set data stream enable while receiver not idle\n");
+			cprintf(RED,"%s\n",mess);
+			ret = FAIL;
+		}
+		else{
+			if(index >= 0 )
+				ret = receiverBase->setDataStreamEnable(index);
+			retval=receiverBase->getDataStreamEnable();
+			if(index>=0 && retval!=index){
+				strcpy(mess,"Could not set data stream enable");
+				cprintf(RED,"%s\n",mess);
+				ret = FAIL;
+			}
+		}
+	}
+
+#endif
+
+	if(ret==OK && socket->differentClients){
+		FILE_LOG(logDEBUG) << "Force update";
+		ret=FORCE_UPDATE;
+	}
+
+	// send answer
+	socket->SendDataOnly(&ret,sizeof(ret));
+	if(ret==FAIL){
+		cprintf(RED,"%s\n",mess);
+		socket->SendDataOnly(mess,sizeof(mess));
+	}
+	socket->SendDataOnly(&retval,sizeof(retval));
+
+	//return ok/fail
+	return ret;
+}
+
+
+
+
 
 int slsReceiverTCPIPInterface::enable_file_write(){
 	ret=OK;