diff --git a/python/src/detector.cpp b/python/src/detector.cpp
index 337630046..f34c141fd 100644
--- a/python/src/detector.cpp
+++ b/python/src/detector.cpp
@@ -73,9 +73,6 @@ void init_det(py::module &m) {
              (Result<int>(Detector::*)(sls::Positions) const) &
                  Detector::getModuleId,
              py::arg() = Positions{})
-        .def("setModuleId",
-             (void (Detector::*)(int, sls::Positions)) & Detector::setModuleId,
-             py::arg(), py::arg() = Positions{})
         .def("getReceiverVersion",
              (Result<int64_t>(Detector::*)(sls::Positions) const) &
                  Detector::getReceiverVersion,
diff --git a/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer
index 1c5e94dd2..6d1414d4a 100755
Binary files a/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer and b/slsDetectorServers/ctbDetectorServer/bin/ctbDetectorServer_developer differ
diff --git a/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer b/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer
index 1f1aa45ae..808f51423 100755
Binary files a/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer and b/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer differ
diff --git a/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
index 6bce9df6b..eb44e5aaa 100644
--- a/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
@@ -303,7 +303,7 @@ void initControlServer() {
     LOG(logINFOBLUE, ("Configuring Control server\n"));
     if (!updateFlag && initError == OK) {
 #ifndef VIRTUAL
-        int detid = getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
+        int modid = getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
 #else
         getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
 #endif
@@ -342,7 +342,7 @@ void initControlServer() {
         LOG(logDEBUG1, ("Control server: FEB Initialization done\n"));
         Beb_SetTopVariable(top);
         Beb_Beb();
-        Beb_SetModuleId(detid);
+        Beb_SetModuleId(modid);
         LOG(logDEBUG1, ("Control server: BEB Initialization done\n"));
 #endif
         // also reads config file and deactivates
diff --git a/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer b/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer
index f4189359f..c3de81e50 100755
Binary files a/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer and b/slsDetectorServers/gotthard2DetectorServer/bin/gotthard2DetectorServer_developer differ
diff --git a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
index 708f0bd12..8c45ae8ed 100644
--- a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
@@ -288,16 +288,13 @@ u_int32_t getDetectorNumber() {
 }
 
 int getModuleId(int *ret, char *mess) {
-    return getModuleIdInFile(ret, mess, ID_FILE);
+    return ((bus_r(MOD_ID_REG) & ~MOD_ID_MSK) >> MOD_ID_OFST);
 }
 
-void setModuleId(int *ret, char *mess, int arg) {
-    *ret = setModuleIdInFile(mess, arg, ID_FILE);
-    if (*ret == FAIL) {
-        return;
-    }
+void setModuleId(int modid) {
+    LOG(logINFOBLUE, ("Setting module id in fpga: %d\n", modid))
     bus_w(MOD_ID_REG, bus_r(MOD_ID_REG) & ~MOD_ID_MSK);
-    bus_w(MOD_ID_REG, bus_r(MOD_ID_REG) | ((arg << MOD_ID_OFST) & MOD_ID_MSK));
+    bus_w(MOD_ID_REG, bus_r(MOD_ID_REG) | ((modid << MOD_ID_OFST) & MOD_ID_MSK));
 }
 
 u_int64_t getDetectorMAC() {
@@ -422,10 +419,6 @@ void setupDetector() {
     sharedMemory_setStatus(IDLE);
     setupUDPCommParameters();
 #endif
-    getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
-    if (initError == FAIL) {
-        return;
-    }
     // pll defines
     ALTERA_PLL_C10_SetDefines(REG_OFFSET, BASE_READOUT_PLL, BASE_SYSTEM_PLL,
                               PLL_RESET_REG, PLL_RESET_READOUT_MSK,
@@ -483,6 +476,14 @@ void setupDetector() {
     if (readConfigFile() == FAIL) {
         return;
     }
+
+    // set module id in register
+    int modid = getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
+    if (initError == FAIL) {
+        return;
+    }
+    setModuleId(modid);
+
     setBurstMode(DEFAULT_BURST_MODE);
     setFilterResistor(DEFAULT_FILTER_RESISTOR);
     setCDSGain(DEFAILT_CDS_GAIN);
diff --git a/slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServer_developer b/slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServer_developer
index 86541ecdc..c17241c2f 100755
Binary files a/slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServer_developer and b/slsDetectorServers/gotthardDetectorServer/bin/gotthardDetectorServer_developer differ
diff --git a/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer b/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer
index 578c6815d..35efc0ad7 100755
Binary files a/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer and b/slsDetectorServers/jungfrauDetectorServer/bin/jungfrauDetectorServer_developer differ
diff --git a/slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServer_developer b/slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServer_developer
index cae2ffd5b..7429e145b 100755
Binary files a/slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServer_developer and b/slsDetectorServers/moenchDetectorServer/bin/moenchDetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 40fa76d69..3c4cc76a8 100755
Binary files a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
index 2adda51b8..3d8c99b13 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
@@ -444,6 +444,14 @@ void setupDetector() {
     setASICDefaults();
     setADIFDefaults();
 
+    // set module id in register
+    getModuleIdInFile(&initError, initErrorMessage, ID_FILE);
+    if (initError == FAIL) {
+        return;
+    }
+    // until firmware is done
+    // setModuleId(modid);    
+
     // set trigger flow for m3 (for all timing modes)
     bus_w(FLOW_TRIGGER_REG, bus_r(FLOW_TRIGGER_REG) | FLOW_TRIGGER_MSK);
 
diff --git a/slsDetectorServers/slsDetectorServer/include/slsDetectorFunctionList.h b/slsDetectorServers/slsDetectorServer/include/slsDetectorFunctionList.h
index 4fc6468d0..8614e7672 100644
--- a/slsDetectorServers/slsDetectorServer/include/slsDetectorFunctionList.h
+++ b/slsDetectorServers/slsDetectorServer/include/slsDetectorFunctionList.h
@@ -97,7 +97,7 @@ u_int32_t getDetectorNumber();
 int getModuleId(int *ret, char *mess);
 #endif
 #ifdef GOTTHARD2D
-void setModuleId(int *ret, char *mess, int arg);
+void setModuleId(int modid);
 #endif
 u_int64_t getDetectorMAC();
 u_int32_t getDetectorIP();
diff --git a/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h b/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
index 521b56ba3..da20ee922 100644
--- a/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
+++ b/slsDetectorServers/slsDetectorServer/include/slsDetectorServer_funcs.h
@@ -268,7 +268,6 @@ int get_adc_pipeline(int);
 int set_dbit_pipeline(int);
 int get_dbit_pipeline(int);
 int get_module_id(int);
-int set_module_id(int);
 int get_dest_udp_list(int);
 int set_dest_udp_list(int);
 int get_num_dest_list(int);
diff --git a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
index 85ddc30b4..9a01cd4ea 100644
--- a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
+++ b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
@@ -404,7 +404,6 @@ void function_table() {
     flist[F_SET_DBIT_PIPELINE] = &set_dbit_pipeline;
     flist[F_GET_DBIT_PIPELINE] = &get_dbit_pipeline;
     flist[F_GET_MODULE_ID] = &get_module_id;
-    flist[F_SET_MODULE_ID] = &set_module_id;
     flist[F_GET_DEST_UDP_LIST] = &get_dest_udp_list;
     flist[F_SET_DEST_UDP_LIST] = &set_dest_udp_list;
     flist[F_GET_NUM_DEST_UDP] = &get_num_dest_list;
@@ -9029,34 +9028,6 @@ int get_module_id(int file_des) {
     return Server_SendResult(file_des, INT32, &retval, sizeof(retval));
 }
 
-int set_module_id(int file_des) {
-    ret = OK;
-    memset(mess, 0, sizeof(mess));
-    int arg = -1;
-
-    if (receiveData(file_des, &arg, sizeof(arg), INT32) < 0)
-        return printSocketReadError();
-    LOG(logDEBUG1, ("Setting module id to 0x%x\n", arg));
-
-#ifndef GOTTHARD2D
-    functionNotImplemented();
-#else
-    if (arg > 0xFFFF) {
-        ret = FAIL;
-        sprintf(mess, "Could not set module id. Max value: 0x%x\n", 0xFFFF);
-        LOG(logERROR, (mess));
-    } else {
-        setModuleId(&ret, mess, arg);
-        if (ret != FAIL) {
-            int retval = getModuleId(&ret, mess);
-            LOG(logDEBUG1, ("retval module id: %d\n", retval));
-            validate(&ret, mess, arg, retval, "set module id", DEC);
-        }
-    }
-#endif
-    return Server_SendResult(file_des, INT32, NULL, 0);
-}
-
 int get_dest_udp_list(int file_des) {
     ret = OK;
     memset(mess, 0, sizeof(mess));
diff --git a/slsDetectorSoftware/include/sls/Detector.h b/slsDetectorSoftware/include/sls/Detector.h
index e0c3e8993..420f605de 100644
--- a/slsDetectorSoftware/include/sls/Detector.h
+++ b/slsDetectorSoftware/include/sls/Detector.h
@@ -81,13 +81,9 @@ class Detector {
     /* [Jungfrau][Gotthard][Mythen3][Gotthard2][CTB][Moench] */
     Result<int64_t> getSerialNumber(Positions pos = {}) const;
 
-    /** [Eiger][Gotthard2][Mythen3] */
+    /** [Eiger][Gotthard2][Mythen3] 6 bit value (ideally unique) that is streamed out in the UDP header of the detector.*/
     Result<int> getModuleId(Positions pos = {}) const;
 
-    /** [Gotthard2] 6 bit value (ideally unique) that is "
-        "streamed out1 in the UDP header of the detector.  */
-    void setModuleId(const int value, Positions pos = {});
-
     Result<int64_t> getReceiverVersion(Positions pos = {}) const;
 
     /** Options: EIGER, JUNGFRAU, GOTTHARD, MOENCH, MYTHEN3, GOTTHARD2,
diff --git a/slsDetectorSoftware/src/CmdProxy.h b/slsDetectorSoftware/src/CmdProxy.h
index eb7d74c11..e2834d957 100644
--- a/slsDetectorSoftware/src/CmdProxy.h
+++ b/slsDetectorSoftware/src/CmdProxy.h
@@ -1203,11 +1203,10 @@ class CmdProxy {
                     "\n\t[Jungfrau][Gotthard][Mythen3][Gotthard2][CTB][Moench]"
                     "Serial number of detector.");
 
-    INTEGER_COMMAND_HEX(
-        moduleid, getModuleId, setModuleId, StringTo<int>,
-        "[value]\n\t[Gotthard2][Eiger][Mythen3] 16 bit value (ideally unique) "
-        "that is streamed out in the UDP header of the detector. "
-        "\n\t[Gotthard2] Can set it too.");
+    GET_COMMAND_HEX(
+        moduleid, getModuleId, 
+        "\n\t[Gotthard2][Eiger][Mythen3] 16 bit value (ideally unique) "
+        "that is streamed out in the UDP header of the detector. Picked up from a file on the module.");
 
     GET_COMMAND(type, getDetectorType,
                 "\n\tReturns detector type. Can be Eiger, Jungfrau, Gotthard, "
diff --git a/slsDetectorSoftware/src/Detector.cpp b/slsDetectorSoftware/src/Detector.cpp
index eb752baa4..80c6c0c0e 100644
--- a/slsDetectorSoftware/src/Detector.cpp
+++ b/slsDetectorSoftware/src/Detector.cpp
@@ -123,10 +123,6 @@ Result<int> Detector::getModuleId(Positions pos) const {
     return pimpl->Parallel(&Module::getModuleId, pos);
 }
 
-void Detector::setModuleId(const int value, Positions pos) {
-    pimpl->Parallel(&Module::setModuleId, pos, value);
-}
-
 Result<int64_t> Detector::getReceiverVersion(Positions pos) const {
     return pimpl->Parallel(&Module::getReceiverSoftwareVersion, pos);
 }
diff --git a/slsDetectorSoftware/src/Module.cpp b/slsDetectorSoftware/src/Module.cpp
index f62339b07..bdda7310e 100644
--- a/slsDetectorSoftware/src/Module.cpp
+++ b/slsDetectorSoftware/src/Module.cpp
@@ -25,8 +25,8 @@
 namespace sls {
 
 // creating new shm
-Module::Module(detectorType type, int det_id, int module_id, bool verify)
-    : moduleId(module_id), shm(det_id, module_id) {
+Module::Module(detectorType type, int det_id, int module_index, bool verify)
+    : moduleIndex(module_index), shm(det_id, module_index) {
 
     // ensure shared memory was not created before
     if (shm.IsExisting()) {
@@ -40,8 +40,8 @@ Module::Module(detectorType type, int det_id, int module_id, bool verify)
 }
 
 // opening existing shm
-Module::Module(int det_id, int module_id, bool verify)
-    : moduleId(module_id), shm(det_id, module_id) {
+Module::Module(int det_id, int module_index, bool verify)
+    : moduleIndex(module_index), shm(det_id, module_index) {
 
     // getDetectorType From shm will check if existing
     detectorType type = getDetectorTypeFromShm(det_id, verify);
@@ -96,10 +96,6 @@ int64_t Module::getSerialNumber() const {
 
 int Module::getModuleId() const { return sendToDetector<int>(F_GET_MODULE_ID); }
 
-void Module::setModuleId(const int value) {
-    return sendToDetector(F_SET_MODULE_ID, value, nullptr);
-}
-
 int64_t Module::getReceiverSoftwareVersion() const {
     if (shm()->useReceiverFlag) {
         return sendToReceiver<int64_t>(F_GET_RECEIVER_VERSION);
@@ -142,7 +138,7 @@ slsDetectorDefs::xy Module::getNumberOfChannels() const {
 
 void Module::updateNumberOfDetector(slsDetectorDefs::xy det) {
     shm()->numberOfDetector = det;
-    int args[2] = {shm()->numberOfDetector.y, moduleId};
+    int args[2] = {shm()->numberOfDetector.y, moduleIndex};
     sendToDetector(F_SET_POSITION, args, nullptr);
 }
 
@@ -823,13 +819,13 @@ std::vector<uint64_t> Module::getNumMissingPackets() const {
         auto client = ReceiverSocket(shm()->rxHostname, shm()->rxTCPPort);
         client.Send(F_GET_NUM_MISSING_PACKETS);
         if (client.Receive<int>() == FAIL) {
-            throw RuntimeError("Receiver " + std::to_string(moduleId) +
+            throw RuntimeError("Receiver " + std::to_string(moduleIndex) +
                                " returned error: " + client.readErrorMessage());
         } else {
             auto nports = client.Receive<int>();
             std::vector<uint64_t> retval(nports);
             client.Receive(retval);
-            LOG(logDEBUG1) << "Missing packets of Receiver" << moduleId << ": "
+            LOG(logDEBUG1) << "Missing packets of Receiver" << moduleIndex << ": "
                            << sls::ToString(retval);
             return retval;
         }
@@ -997,7 +993,7 @@ void Module::setDestinationUDPIP(const IpAddr ip) {
     if (shm()->useReceiverFlag) {
         sls::MacAddr retval(0LU);
         sendToReceiver(F_SET_RECEIVER_UDP_IP, ip, retval);
-        LOG(logINFO) << "Setting destination udp mac of detector " << moduleId
+        LOG(logINFO) << "Setting destination udp mac of detector " << moduleIndex
                      << " to " << retval;
         sendToDetector(F_SET_DEST_UDP_MAC, retval, nullptr);
     }
@@ -1017,7 +1013,7 @@ void Module::setDestinationUDPIP2(const IpAddr ip) {
     if (shm()->useReceiverFlag) {
         sls::MacAddr retval(0LU);
         sendToReceiver(F_SET_RECEIVER_UDP_IP2, ip, retval);
-        LOG(logINFO) << "Setting destination udp mac2 of detector " << moduleId
+        LOG(logINFO) << "Setting destination udp mac2 of detector " << moduleIndex
                      << " to " << retval;
         sendToDetector(F_SET_DEST_UDP_MAC2, retval, nullptr);
     }
@@ -1075,7 +1071,7 @@ void Module::validateUDPConfiguration() {
 
 std::string Module::printReceiverConfiguration() {
     std::ostringstream os;
-    os << "\n\nDetector " << moduleId << "\nReceiver Hostname:\t"
+    os << "\n\nDetector " << moduleIndex << "\nReceiver Hostname:\t"
        << getReceiverHostname();
 
     if (shm()->myDetectorType == JUNGFRAU) {
@@ -1189,7 +1185,7 @@ void Module::setReceiverHostname(const std::string &receiverIP) {
     retval.detType = shm()->myDetectorType;
     retval.numberOfDetector.x = shm()->numberOfDetector.x;
     retval.numberOfDetector.y = shm()->numberOfDetector.y;
-    retval.moduleId = moduleId;
+    retval.moduleIndex = moduleIndex;
     memset(retval.hostname, 0, sizeof(retval.hostname));
     strcpy_safe(retval.hostname, shm()->hostname);
 
@@ -1199,13 +1195,13 @@ void Module::setReceiverHostname(const std::string &receiverIP) {
     if (retval.udp_dstmac == 0 && retvals[0] != 0) {
         LOG(logINFO) << "Setting destination udp mac of "
                         "detector "
-                     << moduleId << " to " << retvals[0];
+                     << moduleIndex << " to " << retvals[0];
         sendToDetector(F_SET_DEST_UDP_MAC, retvals[0], nullptr);
     }
     if (retval.udp_dstmac2 == 0 && retvals[1] != 0) {
         LOG(logINFO) << "Setting destination udp mac2 of "
                         "detector "
-                     << moduleId << " to " << retvals[1];
+                     << moduleIndex << " to " << retvals[1];
         sendToDetector(F_SET_DEST_UDP_MAC2, retvals[1], nullptr);
     }
 
@@ -1521,7 +1517,7 @@ void Module::sendReceiverRateCorrections(const std::vector<int64_t> &t) {
     receiver.Send(static_cast<int>(t.size()));
     receiver.Send(t);
     if (receiver.Receive<int>() == FAIL) {
-        throw RuntimeError("Receiver " + std::to_string(moduleId) +
+        throw RuntimeError("Receiver " + std::to_string(moduleIndex) +
                            " returned error: " + receiver.readErrorMessage());
     }
 }
@@ -1786,7 +1782,7 @@ void Module::sendVetoPhoton(const int chipIndex,
     client.Send(gainIndices);
     client.Send(values);
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Detector " + std::to_string(moduleId) +
+        throw RuntimeError("Detector " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
 }
@@ -1798,7 +1794,7 @@ void Module::getVetoPhoton(const int chipIndex,
     client.Send(F_GET_VETO_PHOTON);
     client.Send(chipIndex);
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Detector " + std::to_string(moduleId) +
+        throw RuntimeError("Detector " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
 
@@ -2033,7 +2029,7 @@ void Module::getBadChannels(const std::string &fname) const {
     auto client = DetectorSocket(shm()->hostname, shm()->controlPort);
     client.Send(F_GET_BAD_CHANNELS);
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Detector " + std::to_string(moduleId) +
+        throw RuntimeError("Detector " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
     // receive badchannels
@@ -2090,7 +2086,7 @@ void Module::setBadChannels(const std::string &fname) {
         client.Send(badchannels);
     }
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Detector " + std::to_string(moduleId) +
+        throw RuntimeError("Detector " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
 }
@@ -2404,7 +2400,7 @@ std::map<std::string, std::string> Module::getAdditionalJsonHeader() const {
     auto client = ReceiverSocket(shm()->rxHostname, shm()->rxTCPPort);
     client.Send(F_GET_ADDITIONAL_JSON_HEADER);
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Receiver " + std::to_string(moduleId) +
+        throw RuntimeError("Receiver " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     } else {
         auto size = client.Receive<int>();
@@ -2453,7 +2449,7 @@ void Module::setAdditionalJsonHeader(
         client.Send(&buff[0], buff.size());
 
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Receiver " + std::to_string(moduleId) +
+        throw RuntimeError("Receiver " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
 }
@@ -3007,7 +3003,7 @@ slsDetectorDefs::detectorType Module::getDetectorTypeFromShm(int det_id,
     shm.OpenSharedMemory();
     if (verify && shm()->shmversion != SLS_SHMVERSION) {
         std::ostringstream ss;
-        ss << "Single shared memory (" << det_id << "-" << moduleId
+        ss << "Single shared memory (" << det_id << "-" << moduleIndex
            << ":)version mismatch (expected 0x" << std::hex << SLS_SHMVERSION
            << " but got 0x" << shm()->shmversion << ")" << std::dec
            << ". Clear Shared memory to continue.";
@@ -3018,7 +3014,7 @@ slsDetectorDefs::detectorType Module::getDetectorTypeFromShm(int det_id,
 }
 
 void Module::initSharedMemory(detectorType type, int det_id, bool verify) {
-    shm = SharedMemory<sharedSlsDetector>(det_id, moduleId);
+    shm = SharedMemory<sharedSlsDetector>(det_id, moduleIndex);
     if (!shm.IsExisting()) {
         shm.CreateSharedMemory();
         initializeDetectorStructure(type);
@@ -3026,7 +3022,7 @@ void Module::initSharedMemory(detectorType type, int det_id, bool verify) {
         shm.OpenSharedMemory();
         if (verify && shm()->shmversion != SLS_SHMVERSION) {
             std::ostringstream ss;
-            ss << "Single shared memory (" << det_id << "-" << moduleId
+            ss << "Single shared memory (" << det_id << "-" << moduleIndex
                << ":) version mismatch (expected 0x" << std::hex
                << SLS_SHMVERSION << " but got 0x" << shm()->shmversion << ")"
                << std::dec << ". Clear Shared memory to continue.";
@@ -3048,7 +3044,7 @@ void Module::initializeDetectorStructure(detectorType type) {
     shm()->rxTCPPort = DEFAULT_PORTNO + 2;
     shm()->useReceiverFlag = false;
     shm()->zmqport = DEFAULT_ZMQ_CL_PORTNO +
-                     (moduleId * ((shm()->myDetectorType == EIGER) ? 2 : 1));
+                     (moduleIndex * ((shm()->myDetectorType == EIGER) ? 2 : 1));
     shm()->zmqip = IpAddr{};
     shm()->numUDPInterfaces = 1;
     shm()->stoppedFlag = false;
@@ -3161,7 +3157,7 @@ void Module::setModule(sls_detector_module &module, bool trimbits) {
     client.Send(F_SET_MODULE);
     sendModule(&module, client);
     if (client.Receive<int>() == FAIL) {
-        throw RuntimeError("Detector " + std::to_string(moduleId) +
+        throw RuntimeError("Detector " + std::to_string(moduleIndex) +
                            " returned error: " + client.readErrorMessage());
     }
 }
@@ -3174,7 +3170,7 @@ void Module::updateReceiverStreamingIP() {
         if (ip == 0) {
             ip = HostnameToIp(shm()->rxHostname);
         }
-        LOG(logINFO) << "Setting default receiver " << moduleId
+        LOG(logINFO) << "Setting default receiver " << moduleIndex
                      << " streaming zmq ip to " << ip;
     }
     setReceiverStreamingIP(ip);
@@ -3412,20 +3408,20 @@ void Module::programFPGAviaBlackfin(std::vector<char> buffer) {
     uint64_t filesize = buffer.size();
     // send program from memory to detector
     LOG(logINFO) << "Sending programming binary (from pof) to detector "
-                 << moduleId << " (" << shm()->hostname << ")";
+                 << moduleIndex << " (" << shm()->hostname << ")";
     auto client = DetectorSocket(shm()->hostname, shm()->controlPort);
     client.Send(F_PROGRAM_FPGA);
     client.Send(filesize);
     // error in detector at opening file pointer to flash
     if (client.Receive<int>() == FAIL) {
         std::ostringstream os;
-        os << "Detector " << moduleId << " (" << shm()->hostname << ")"
+        os << "Detector " << moduleIndex << " (" << shm()->hostname << ")"
            << " returned error: " << client.readErrorMessage();
         throw RuntimeError(os.str());
     }
 
     // erasing flash
-    LOG(logINFO) << "Erasing Flash for detector " << moduleId << " ("
+    LOG(logINFO) << "Erasing Flash for detector " << moduleIndex << " ("
                  << shm()->hostname << ")";
     printf("%d%%\r", 0);
     std::cout << std::flush;
@@ -3443,7 +3439,7 @@ void Module::programFPGAviaBlackfin(std::vector<char> buffer) {
         std::cout << std::flush;
     }
     printf("\n");
-    LOG(logINFO) << "Writing to Flash to detector " << moduleId << " ("
+    LOG(logINFO) << "Writing to Flash to detector " << moduleIndex << " ("
                  << shm()->hostname << ")";
     printf("%d%%\r", 0);
     std::cout << std::flush;
@@ -3464,7 +3460,7 @@ void Module::programFPGAviaBlackfin(std::vector<char> buffer) {
         if (client.Receive<int>() == FAIL) {
             std::cout << '\n';
             std::ostringstream os;
-            os << "Detector " << moduleId << " (" << shm()->hostname << ")"
+            os << "Detector " << moduleIndex << " (" << shm()->hostname << ")"
                << " returned error: " << client.readErrorMessage();
             throw RuntimeError(os.str());
         }
@@ -3483,7 +3479,7 @@ void Module::programFPGAviaBlackfin(std::vector<char> buffer) {
     // fpga has picked up from flash successfully
     if (client.Receive<int>() == FAIL) {
         std::ostringstream os;
-        os << "Detector " << moduleId << " (" << shm()->hostname << ")"
+        os << "Detector " << moduleIndex << " (" << shm()->hostname << ")"
            << " returned error: " << client.readErrorMessage();
         throw RuntimeError(os.str());
     }
@@ -3494,7 +3490,7 @@ void Module::programFPGAviaBlackfin(std::vector<char> buffer) {
 
 void Module::programFPGAviaNios(std::vector<char> buffer) {
     LOG(logINFO) << "Sending programming binary (from rbf) to detector "
-                 << moduleId << " (" << shm()->hostname << ")";
+                 << moduleIndex << " (" << shm()->hostname << ")";
 
     auto client = DetectorSocket(shm()->hostname, shm()->controlPort);
     client.Send(F_PROGRAM_FPGA);
@@ -3502,14 +3498,14 @@ void Module::programFPGAviaNios(std::vector<char> buffer) {
     client.Send(filesize);
     if (client.Receive<int>() == FAIL) {
         std::ostringstream os;
-        os << "Detector " << moduleId << " (" << shm()->hostname << ")"
+        os << "Detector " << moduleIndex << " (" << shm()->hostname << ")"
            << " returned error: " << client.readErrorMessage();
         throw RuntimeError(os.str());
     }
     client.Send(buffer);
     if (client.Receive<int>() == FAIL) {
         std::ostringstream os;
-        os << "Detector " << moduleId << " (" << shm()->hostname << ")"
+        os << "Detector " << moduleIndex << " (" << shm()->hostname << ")"
            << " returned error: " << client.readErrorMessage();
         throw RuntimeError(os.str());
     }
diff --git a/slsDetectorSoftware/src/Module.h b/slsDetectorSoftware/src/Module.h
index e8912feb3..89b02d0ac 100644
--- a/slsDetectorSoftware/src/Module.h
+++ b/slsDetectorSoftware/src/Module.h
@@ -66,12 +66,12 @@ class Module : public virtual slsDetectorDefs {
 
     /** creating new shared memory
     verify is if shared memory version matches existing one */
-    explicit Module(detectorType type, int det_id = 0, int module_id = 0,
+    explicit Module(detectorType type, int det_id = 0, int module_index = 0,
                     bool verify = true);
 
     /** opening existing shared memory
     verify is if shared memory version matches existing one */
-    explicit Module(int det_id = 0, int module_id = 0, bool verify = true);
+    explicit Module(int det_id = 0, int module_index = 0, bool verify = true);
 
     virtual ~Module();
 
@@ -91,7 +91,6 @@ class Module : public virtual slsDetectorDefs {
     int64_t getDetectorServerVersion() const;
     int64_t getSerialNumber() const;
     int getModuleId() const;
-    void setModuleId(const int value);
     int64_t getReceiverSoftwareVersion() const;
     static detectorType getTypeFromDetector(const std::string &hostname,
                                             int cport = DEFAULT_PORTNO);
@@ -747,7 +746,7 @@ class Module : public virtual slsDetectorDefs {
     void programFPGAviaBlackfin(std::vector<char> buffer);
     void programFPGAviaNios(std::vector<char> buffer);
 
-    const int moduleId;
+    const int moduleIndex;
     mutable sls::SharedMemory<sharedSlsDetector> shm{0, 0};
 };
 
diff --git a/slsReceiverSoftware/src/ClientInterface.cpp b/slsReceiverSoftware/src/ClientInterface.cpp
index afbd2f168..b4d7464db 100644
--- a/slsReceiverSoftware/src/ClientInterface.cpp
+++ b/slsReceiverSoftware/src/ClientInterface.cpp
@@ -337,7 +337,7 @@ int ClientInterface::setup_receiver(Interface &socket) {
         int msize[2] = {arg.numberOfDetector.x, arg.numberOfDetector.y};
         impl()->setDetectorSize(msize);
     }
-    impl()->setModulePositionId(arg.moduleId);
+    impl()->setModulePositionId(arg.moduleIndex);
     impl()->setDetectorHostname(arg.hostname);
 
     // udp setup
diff --git a/slsSupportLib/include/sls/sls_detector_defs.h b/slsSupportLib/include/sls/sls_detector_defs.h
index c4b24677a..85d10288f 100644
--- a/slsSupportLib/include/sls/sls_detector_defs.h
+++ b/slsSupportLib/include/sls/sls_detector_defs.h
@@ -500,7 +500,7 @@ typedef struct {
     struct rxParameters {
         detectorType detType{GENERIC};
         xy numberOfDetector;
-        int moduleId{0};
+        int moduleIndex{0};
         char hostname[MAX_STR_LENGTH];
         int udpInterfaces{1};
         int udp_dstport{0};
diff --git a/slsSupportLib/include/sls/sls_detector_funcs.h b/slsSupportLib/include/sls/sls_detector_funcs.h
index 0c0403aca..4a4fd8f61 100755
--- a/slsSupportLib/include/sls/sls_detector_funcs.h
+++ b/slsSupportLib/include/sls/sls_detector_funcs.h
@@ -244,7 +244,6 @@ enum detFuncs {
     F_SET_DBIT_PIPELINE,
     F_GET_DBIT_PIPELINE,
     F_GET_MODULE_ID,
-    F_SET_MODULE_ID,
     F_GET_DEST_UDP_LIST,
     F_SET_DEST_UDP_LIST,
     F_GET_NUM_DEST_UDP,
@@ -602,7 +601,6 @@ const char* getFunctionNameFromEnum(enum detFuncs func) {
     case F_SET_DBIT_PIPELINE:               return "F_SET_DBIT_PIPELINE";
     case F_GET_DBIT_PIPELINE:               return "F_GET_DBIT_PIPELINE";
     case F_GET_MODULE_ID:                   return "F_GET_MODULE_ID";
-    case F_SET_MODULE_ID:                   return "F_SET_MODULE_ID";
     case F_GET_DEST_UDP_LIST:               return "F_GET_DEST_UDP_LIST";
     case F_SET_DEST_UDP_LIST:               return "F_SET_DEST_UDP_LIST";
     case F_GET_NUM_DEST_UDP:                return "F_GET_NUM_DEST_UDP";
diff --git a/slsSupportLib/src/ToString.cpp b/slsSupportLib/src/ToString.cpp
index 25bd91e35..8e7bd69cd 100644
--- a/slsSupportLib/src/ToString.cpp
+++ b/slsSupportLib/src/ToString.cpp
@@ -28,7 +28,7 @@ std::string ToString(const slsDetectorDefs::rxParameters &r) {
     oss << '[' << "detType:" << r.detType << std::endl
         << "numberOfDetector.x:" << r.numberOfDetector.x << std::endl
         << "numberOfDetector.y:" << r.numberOfDetector.y << std::endl
-        << "moduleId:" << r.moduleId << std::endl
+        << "moduleIndex:" << r.moduleIndex << std::endl
         << "hostname:" << r.hostname << std::endl
         << "udpInterfaces:" << r.udpInterfaces << std::endl
         << "udp_dstport:" << r.udp_dstport << std::endl