diff --git a/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/CanBridgeProtocol.kt b/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/CanBridgeProtocol.kt
index 599c6df..103f7fd 100644
--- a/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/CanBridgeProtocol.kt
+++ b/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/CanBridgeProtocol.kt
@@ -265,31 +265,14 @@ data class ProtoCanId(
     val messageType: Int,
     val body: Int,
 ) {
-    val messageTypeName: String get() = MESSAGE_TYPES[messageType] ?: "Reserved 0x${messageType.toString(16).uppercase()}"
+    val messageTypeName: String get() = ProtoCanMessageType.fromCode(messageType)?.title
+        ?: "Reserved 0x${messageType.toString(16).uppercase()}"
     val deviceName: String? get() = DEVICE_NAMES[device]
 
     fun summary(): String = "P$priority · PM$pm · Type $deviceType · Dev $device" +
         (deviceName?.let { " ($it)" } ?: "") + " · $messageTypeName · Body 0x%04X".format(body)
 
     companion object {
-        private val MESSAGE_TYPES = mapOf(
-            0x0 to "Broadcast",
-            0x1 to "Discrete",
-            0x2 to "Analog",
-            0x3 to "General Address Space",
-            0x4 to "Modbus Coil",
-            0x5 to "Modbus Discrete",
-            0x6 to "Modbus Holding",
-            0x7 to "Modbus Input",
-            0x8 to "Error",
-            0x9 to "Boot Control",
-            0xA to "Boot Data A",
-            0xB to "Boot Data B",
-            0xC to "Boot Status",
-            0xD to "Boot Discovery",
-            0xE to "Settings",
-            0xF to "Pulse",
-        )
         private val DEVICE_NAMES = mapOf(
             0xD to "DS_CONTROL",
             0xE to "Android GUI",
diff --git a/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/ProtoCanCatalog.kt b/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/ProtoCanCatalog.kt
new file mode 100644
index 0000000..385865f
--- /dev/null
+++ b/c/set-protocol/ports/android/kotlin/ru/setcorp/setflash/core/ProtoCanCatalog.kt
@@ -0,0 +1,67 @@
+package ru.setcorp.setflash.core
+
+/** Canonical ProtoCAN message-type registry shared by Android protocol clients. */
+enum class ProtoCanMessageType(val code: Int, val title: String) {
+    BROADCAST(0x0, "Broadcast"),
+    DISCRETE(0x1, "Discrete"),
+    ANALOG(0x2, "Analog"),
+    GENERAL_ADDRESS_SPACE(0x3, "General Address Space"),
+    MODBUS_COIL(0x4, "Modbus Coil"),
+    MODBUS_DISCRETE(0x5, "Modbus Discrete"),
+    MODBUS_HOLDING(0x6, "Modbus Holding"),
+    MODBUS_INPUT(0x7, "Modbus Input"),
+    ERROR(0x8, "Error"),
+    BOOT_CONTROL(0x9, "Boot Control"),
+    BOOT_DATA_A(0xA, "Boot Data A"),
+    BOOT_DATA_B(0xB, "Boot Data B"),
+    BOOT_STATUS(0xC, "Boot Status"),
+    BOOT_DISCOVERY(0xD, "Boot Discovery"),
+    SETTINGS(0xE, "Settings"),
+    PULSE(0xF, "Pulse");
+
+    companion object {
+        fun fromCode(code: Int): ProtoCanMessageType? = entries.firstOrNull { it.code == code }
+    }
+}
+
+enum class ProtoCanBroadcastType(val code: Int, val title: String) {
+    STATUS(0x0, "STATUS · запрос статуса"),
+    ONOFF(0x1, "ONOFF · вкл/выкл пульса"),
+    RESTART_DEVICE(0x2, "RESTARTDEVICE · перезапуск"),
+    RTC_SETUP(0x3, "RTCSETUP · установка RTC"),
+    END(0xFFF, "END · конец диапазона"),
+}
+
+enum class ProtoCanDiscreteType(val code: Int, val title: String) {
+    ACCIDENT(0x0, "ACCIDENT · авария"),
+    WARNING(0x1, "WARNING · предупреждение"),
+    CONTROL_SIGNALS(0x2, "CONTROL_SIGNALS · управление"),
+    FLAGS(0x3, "FLAGS · флаги"),
+    RESET(0x4, "RESET · сброс"),
+    CHANGE_MODE(0x5, "CHANGE_MODE · смена режима"),
+    REQUEST_PARAMETERS(0x6, "REQUEST_LIST_OF_PARAMETERS"),
+    END(0xF, "END · конец диапазона"),
+}
+
+enum class ProtoCanAnalogType(val code: Int, val title: String) {
+    UNIVERSAL(0x0, "UNIVERSAL · универсальный"),
+    SETTINGS(0x1, "SETTINGS · уставки"),
+    U(0x2, "U · напряжение"),
+    I(0x3, "I · ток"),
+    T(0x4, "T · температура"),
+    END(0xF, "END · конец диапазона"),
+}
+
+/** Portable MsgBody layouts matching `pcan_id.h` and SETGUI's frame builder. */
+object ProtoCanBody {
+    fun broadcast(type: Int, body: Int): Int = ((type and 0xFFF) shl 4) or (body and 0xF)
+
+    fun typed(type: Int, body: Int): Int = ((type and 0xF) shl 12) or (body and 0xFFF)
+
+    fun modbus(address: Int, registerCount: Int): Int =
+        ((address and 0xFFF) shl 4) or (registerCount and 0xF)
+
+    fun error(info: Int, code: Int): Int = ((info and 0xFF) shl 8) or (code and 0xFF)
+
+    fun settings(z: Int, y: Int): Int = ((z and 0xFF) shl 8) or (y and 0xFF)
+}
diff --git a/c/set-protocol/ports/android/tests/ru/setcorp/setflash/core/ProtoCanCatalogTest.kt b/c/set-protocol/ports/android/tests/ru/setcorp/setflash/core/ProtoCanCatalogTest.kt
new file mode 100644
index 0000000..4b682d5
--- /dev/null
+++ b/c/set-protocol/ports/android/tests/ru/setcorp/setflash/core/ProtoCanCatalogTest.kt
@@ -0,0 +1,21 @@
+package ru.setcorp.setflash.core
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class ProtoCanCatalogTest {
+    @Test
+    fun bodyLayoutsMatchSetGuiBuilder() {
+        assertEquals(0x1234, ProtoCanBody.broadcast(0x123, 0x4))
+        assertEquals(0x2001, ProtoCanBody.typed(ProtoCanAnalogType.U.code, 1))
+        assertEquals(0x1234, ProtoCanBody.modbus(0x123, 4))
+        assertEquals(0xABCD, ProtoCanBody.error(0xAB, 0xCD))
+        assertEquals(0xFF01, ProtoCanBody.settings(0xFF, 0x01))
+    }
+
+    @Test
+    fun messageRegistryCoversAllFourBitValues() {
+        assertEquals((0..0xF).toList(), ProtoCanMessageType.entries.map { it.code })
+        assertEquals("Settings", ProtoCanId.parse(0x17FE1234).messageTypeName)
+    }
+}