node-opcua · erossignon · Feb 3, 2026 · Jan 22, 2026
diff --git a/packages/node-opcua-convert-nodeset-to-javascript/CHANGELOG.md b/packages/node-opcua-convert-nodeset-to-javascript/CHANGELOG.md
@@ -0,0 +1,67 @@
+# Changelog
+
+## [Unreleased]
+
+### Fixed
+
+#### Fix #1: Inherited member type compatibility
+
+**Problem:**  
+When a derived class overrides a member without adding new sub-members, the generator used the raw TypeDefinition type instead of the specialized type from the base class.
+
+**Example:**
+```typescript
+// Base class defines specialized type:
+interface UAIJoiningSystemAsset_identification 
+    extends Omit<UAMachineryItemIdentification, "manufacturer"|"serialNumber"> { ... }
+
+// BEFORE (wrong): Generator used generic type
+identification: UAMachineryItemIdentification;
+
+// AFTER (correct): Generator uses specialized type from base class  
+identification: UAIJoiningSystemAsset_identification;
+```
+
+This caused TS2430 errors in some NodeSets (e.g., LADS):
+```
+error TS2430: Interface 'UAMultiSensorFunction_Base' incorrectly extends interface 'UABaseSensorFunction_Base'.
+```
+
+**Solution:**  
+If the base class has a specialized type for a member, use that type to maintain compatibility in the inheritance chain.
+
+---
+
+#### Fix #2: Correct type arguments for inherited generic types
+
+**Problem:**  
+When `childType` was inherited from the base class (via Fix #1), the type arguments (suffix) were still computed based on the TypeDefinition, not the inherited type.
+
+**Example:**
+```typescript
+// Base class: (with Fix #1)
+currentValue: UADiscreteItem<any, any>;        // 2 type args (generic)
+
+// TypeDefinition (TwoStateDiscreteType) has dataType=Boolean, so only 1 param
+
+// BEFORE (wrong): 
+currentValue: UADiscreteItem<boolean>;         // 1 arg - TS2314 error!
+
+// AFTER (correct):
+currentValue: UADiscreteItem<boolean, DataType.Boolean>;  // 2 args, specific ✓
+```
+
+**Solution:**  
+When inheriting `childType` from the base class, recalculate the type arguments based on the base type's generic parameters, combined with the current node's specific dataType.
+
+---
+
+### Affected NodeSets
+
+The fixes correct type generation in the following existing NodeSets:
+- node-opcua-nodeset-ua (3 files)
+- node-opcua-nodeset-ijt-base (14 files)
+- node-opcua-nodeset-scales-v-2 (7 files)
+- node-opcua-nodeset-glass-flat (2 files)
+- node-opcua-nodeset-machine-tool (1 file)
+- node-opcua-nodeset-padim (1 file)
diff --git a/packages/node-opcua-convert-nodeset-to-javascript/source/convert_to_typescript.ts b/packages/node-opcua-convert-nodeset-to-javascript/source/convert_to_typescript.ts
@@ -602,9 +602,9 @@ export async function extractClassMemberDef(
             assert(innerClass);
             assert(childBase);
         } else {
-            // may not expose definition  but we may want to used the augment typescript class defined in the definition
-            // we don't need to create an inner class ...
-            // xxxx NOT HERE childType = sameMemberInBaseClass ? sameMemberInBaseClass?.childType : childType;
+            if (sameMemberInBaseClass && sameMemberInBaseClass.childType.name !== childType.name) {
+                childType = sameMemberInBaseClass.childType;
+            }
             assert(!innerClass);
             assert(!childBase);
         }
@@ -647,6 +647,29 @@ export async function extractClassMemberDef(
             ...classMember,
             ...extra
         };
+
+        const baseParentDef2 = parentDef.superType && parentDef.baseClassDef;
+        if (baseParentDef2) {
+            const sameMemberInBase = baseParentDef2.members.find(
+                (m) => m.browseName.toString() === browseName.toString()
+            );
+            if (sameMemberInBase && sameMemberInBase.childType.name === classMember.childType.name 
+                && sameMemberInBase.childType.name !== typeDefinition.browseName.name?.toString()) {
+                // childType was inherited from base (e.g., UADiscreteItem instead of UATwoStateDiscrete)
+                // Recalculate suffix based on base class's classDef
+                if (sameMemberInBase.classDef && classMember.dataType !== undefined) {
+                    const baseTypeHasUnspecifiedDataType = 
+                        sameMemberInBase.classDef.dataType === DataType.Null || 
+                        sameMemberInBase.classDef.dataType === DataType.Variant;
+
+                    if (baseTypeHasUnspecifiedDataType && classMember.dataType !== DataType.Null && classMember.dataType !== DataType.Variant) {
+                        // Base type is generic (2 params), current has specific dataType
+                        // Generate: <specificType, DataType.SpecificType>
+                        classMember.suffixInstantiate = `<${classMember.jtype}, DataType.${DataType[classMember.dataType]}>`;
+                    }
+                }
+            }
+        }
     }
 
     return classMember;

diff --git a/packages/node-opcua-nodeset-glass-flat/source/ua_production_job.ts b/packages/node-opcua-nodeset-glass-flat/source/ua_production_job.ts
@@ -3,15 +3,15 @@ import { UAObject, UAMethod, UAProperty } from "node-opcua-address-space-base"
 import { DataType } from "node-opcua-variant"
 import { LocalizedText } from "node-opcua-data-model"
 import { UInt16, UAString } from "node-opcua-basic-types"
-import { UAFiniteStateVariable } from "node-opcua-nodeset-ua/dist/ua_finite_state_variable"
+import { UAStateVariable } from "node-opcua-nodeset-ua/dist/ua_state_variable"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
 import { UAFolder } from "node-opcua-nodeset-ua/dist/ua_folder"
 import { UALockingServices } from "node-opcua-nodeset-di/dist/ua_locking_services"
 import { UAProductionStateMachine } from "./ua_production_state_machine"
 import { UAInitializingSubStateMachine } from "./ua_initializing_sub_state_machine"
 import { UAInstruction } from "./ua_instruction"
 export interface UAProductionJob_state extends Omit<UAProductionStateMachine, "currentState"> { // Object
-      currentState: UAFiniteStateVariable<LocalizedText>;
+      currentState: UAStateVariable<LocalizedText>;
       initializedState: UAInitializingSubStateMachine;
 }
 /**

diff --git a/packages/node-opcua-nodeset-glass-flat/source/ua_production_state_machine.ts b/packages/node-opcua-nodeset-glass-flat/source/ua_production_state_machine.ts
@@ -3,7 +3,7 @@ import { LocalizedText } from "node-opcua-data-model"
 import { UAFiniteStateMachine, UAFiniteStateMachine_Base } from "node-opcua-nodeset-ua/dist/ua_finite_state_machine"
 import { UAState } from "node-opcua-nodeset-ua/dist/ua_state"
 import { UATransition } from "node-opcua-nodeset-ua/dist/ua_transition"
-import { UAFiniteStateVariable } from "node-opcua-nodeset-ua/dist/ua_finite_state_variable"
+import { UAStateVariable } from "node-opcua-nodeset-ua/dist/ua_state_variable"
 import { UAInitialState } from "node-opcua-nodeset-ua/dist/ua_initial_state"
 import { UAInitializingSubStateMachine } from "./ua_initializing_sub_state_machine"
 /**
@@ -17,7 +17,7 @@ import { UAInitializingSubStateMachine } from "./ua_initializing_sub_state_machi
 export interface UAProductionStateMachine_Base extends UAFiniteStateMachine_Base {
     aborted: UAState;
     abortedToInitializing: UATransition;
-    currentState: UAFiniteStateVariable<LocalizedText>;
+    currentState: UAStateVariable<LocalizedText>;
     ended: UAState;
     endedToInitializing: UATransition;
     initializing: UAInitialState;

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_accessory.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_accessory.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAIAccessory_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * type
@@ -32,7 +31,7 @@ export interface UAIAccessory_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_battery.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_battery.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { Int64, Byte, UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 import { UAJoiningDataVariable } from "./ua_joining_data_variable"
 export interface UAIBattery_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
@@ -71,7 +70,7 @@ export interface UAIBattery_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_cable.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_cable.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { Byte } from "node-opcua-basic-types"
 import { UAMultiStateDiscrete } from "node-opcua-nodeset-ua/dist/ua_multi_state_discrete"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 import { UAJoiningDataVariable } from "./ua_joining_data_variable"
 export interface UAICable_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
@@ -36,7 +35,7 @@ export interface UAICable_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_controller.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_controller.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { Byte } from "node-opcua-basic-types"
 import { UAMultiStateDiscrete } from "node-opcua-nodeset-ua/dist/ua_multi_state_discrete"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAIController_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * type
@@ -30,7 +29,7 @@ export interface UAIController_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_feeder.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_feeder.ts
@@ -3,8 +3,7 @@ import { DataType } from "node-opcua-variant"
 import { Byte, UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
 import { UAMultiStateDiscrete } from "node-opcua-nodeset-ua/dist/ua_multi_state_discrete"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 import { UAJoiningDataVariable } from "./ua_joining_data_variable"
 export interface UAIFeeder_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
@@ -50,7 +49,7 @@ export interface UAIFeeder_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_memory_device.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_memory_device.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { UInt64, UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAIMemoryDevice_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * storageCapacity
@@ -44,7 +43,7 @@ export interface UAIMemoryDevice_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_power_supply.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_power_supply.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 import { UAJoiningDataVariable } from "./ua_joining_data_variable"
 export interface UAIPowerSupply_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
@@ -50,7 +49,7 @@ export interface UAIPowerSupply_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_sensor.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_sensor.ts
@@ -3,8 +3,7 @@ import { DataType } from "node-opcua-variant"
 import { Int64, Byte } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
 import { UAMultiStateDiscrete } from "node-opcua-nodeset-ua/dist/ua_multi_state_discrete"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAISensor_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * measuredValue
@@ -44,7 +43,7 @@ export interface UAISensor_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_servo.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_servo.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { Int16 } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAIServo_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * nodeNumber
@@ -32,7 +31,7 @@ export interface UAIServo_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of

diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_software.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_software.ts
@@ -1,6 +1,5 @@
 // ----- this file has been automatically generated - do not edit
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 /**
  * |                |                                                            |
  * |----------------|------------------------------------------------------------|
@@ -20,7 +19,7 @@ export interface UAISoftware_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
 }
 export interface UAISoftware extends Omit<UAIJoiningSystemAsset, "identification">, UAISoftware_Base {
 }
diff --git a/packages/node-opcua-nodeset-ijt-base/source/ua_i_sub_component.ts b/packages/node-opcua-nodeset-ijt-base/source/ua_i_sub_component.ts
@@ -2,8 +2,7 @@
 import { DataType } from "node-opcua-variant"
 import { UAString } from "node-opcua-basic-types"
 import { UABaseDataVariable } from "node-opcua-nodeset-ua/dist/ua_base_data_variable"
-import { UAMachineryItemIdentification } from "node-opcua-nodeset-machinery/dist/ua_machinery_item_identification"
-import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base } from "./ua_i_joining_system_asset"
+import { UAIJoiningSystemAsset_parameters, UAIJoiningSystemAsset, UAIJoiningSystemAsset_Base, UAIJoiningSystemAsset_identification } from "./ua_i_joining_system_asset"
 export interface UAISubComponent_parameters extends UAIJoiningSystemAsset_parameters { // Object
       /**
        * type
@@ -32,7 +31,7 @@ export interface UAISubComponent_Base extends UAIJoiningSystemAsset_Base {
      * it with MachineIdentificationType or
      * MachineryComponentIdentificationType.
      */
-    identification: UAMachineryItemIdentification;
+    identification: UAIJoiningSystemAsset_identification;
     /**
      * parameters
      * The Parameters Object is an instance of