diff --git a/bsp_q7s/core/CMakeLists.txt b/bsp_q7s/core/CMakeLists.txt
index 8731b7a3..30538565 100644
--- a/bsp_q7s/core/CMakeLists.txt
+++ b/bsp_q7s/core/CMakeLists.txt
@@ -1,4 +1,5 @@
 target_sources(${OBSW_NAME} PRIVATE
+    acsModeTree.cpp
     CoreController.cpp
     obsw.cpp
     InitMission.cpp
diff --git a/bsp_q7s/core/acsModeTree.cpp b/bsp_q7s/core/acsModeTree.cpp
new file mode 100644
index 00000000..c097d971
--- /dev/null
+++ b/bsp_q7s/core/acsModeTree.cpp
@@ -0,0 +1,72 @@
+#include <commonObjects.h>
+
+#include "acsModeTree.h"
+#include <fsfw/subsystem/modes/ModeDefinitions.h>
+#include <fsfw/subsystem/Subsystem.h>
+#include <fsfw/modes/HasModesIF.h>
+
+FixedArrayList<ModeListEntry, 2> ACS_SEQUENCE_OFF = FixedArrayList<ModeListEntry, 2>();
+FixedArrayList<ModeListEntry, 0> ACS_TABLE_OFF_TGT = FixedArrayList<ModeListEntry, 0>();
+FixedArrayList<ModeListEntry, 6> ACS_TABLE_OFF_TRANS = FixedArrayList<ModeListEntry, 6>();
+
+static constexpr Mode_t ACS_SEQUENCE_OFF_ID = HasModesIF::MODE_OFF;
+static constexpr Mode_t ACS_TABLE_OFF_TGT_ID = 0x61000000;
+static constexpr Mode_t ACS_TABLE_OFF_TRANS_ID = 0x61000001;
+
+void satsystem::acsSubsystemInit() {
+  ModeListEntry entry;
+  Subsystem *acsSubsystem = new Subsystem(objects::ACS_SUBSYSTEM, objects::EIVE_SYSTEM, 20, 20);
+  buildOffSequence(acsSubsystem, entry);
+}
+
+void satsystem::buildOffSequence(Subsystem* ss, ModeListEntry& eh) {
+  // Build OFF target
+  ss->addTable(&ACS_TABLE_OFF_TGT, ACS_TABLE_OFF_TGT_ID, false, true);
+
+  // Build OFF transition
+  eh.setObject(objects::ACS_CONTROLLER);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  eh.setObject(objects::IMTQ_HANDLER);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  eh.setObject(objects::STAR_TRACKER);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  eh.setObject(objects::ACS_BOARD_ASS);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  eh.setObject(objects::SUS_BOARD_ASS);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  eh.setObject(objects::RW_ASS);
+  eh.setMode(HasModesIF::MODE_OFF);
+  eh.setSubmode(0);
+  ACS_TABLE_OFF_TRANS.insert(eh);
+
+  ss->addTable(&ACS_TABLE_OFF_TRANS, ACS_TABLE_OFF_TRANS_ID, false, true);
+
+  // Build OFF sequence
+  eh.setTableId(ACS_TABLE_OFF_TGT_ID);
+  eh.setWaitSeconds(0);
+  eh.setCheckSuccess(false);
+  ACS_SEQUENCE_OFF.insert(eh);
+
+  eh.setTableId(ACS_TABLE_OFF_TRANS_ID);
+  eh.setWaitSeconds(0);
+  eh.setCheckSuccess(false);
+  ACS_SEQUENCE_OFF.insert(eh);
+
+  ss->addSequence(&ACS_SEQUENCE_OFF, ACS_SEQUENCE_OFF_ID, ACS_SEQUENCE_OFF_ID, false, true);
+  ss->setInitialMode(HasModesIF::MODE_OFF);
+}
diff --git a/bsp_q7s/core/acsModeTree.h b/bsp_q7s/core/acsModeTree.h
new file mode 100644
index 00000000..34811349
--- /dev/null
+++ b/bsp_q7s/core/acsModeTree.h
@@ -0,0 +1,10 @@
+#include <fsfw/subsystem/modes/ModeDefinitions.h>
+
+class Subsystem;
+
+namespace satsystem {
+
+void acsSubsystemInit();
+void buildOffSequence(Subsystem* ss, ModeListEntry& entryHelper);
+
+}
diff --git a/common/config/commonObjects.h b/common/config/commonObjects.h
index a4f3319e..0b27a023 100644
--- a/common/config/commonObjects.h
+++ b/common/config/commonObjects.h
@@ -97,7 +97,10 @@ enum commonObjects: uint32_t {
     // 0x73 ('s') for assemblies and system/subsystem components
     ACS_BOARD_ASS = 0x73000001,
     SUS_BOARD_ASS = 0x73000002,
-    TCS_BOARD_ASS = 0x73000003
+    TCS_BOARD_ASS = 0x73000003,
+    RW_ASS = 0x73000004,
+    ACS_SUBSYSTEM = 0x73010001,
+    EIVE_SYSTEM = 0x73010000,
 };
 }
 
diff --git a/generators/fsfwgen b/generators/fsfwgen
index 5ad9fb94..19e8ee90 160000
--- a/generators/fsfwgen
+++ b/generators/fsfwgen
@@ -1 +1 @@
-Subproject commit 5ad9fb94af3312d29863527106396395f7b808a5
+Subproject commit 19e8ee90be12f72ceb8c2aefdfd665b5babad417