| Bad | OpcUa_BadUnexpectedError | 0x80010000 | An unexpected error occurred. |
| Bad | OpcUa_BadInternalError | 0x80020000 | An internal error occurred as a result of a programming or configuration error. |
| Bad | OpcUa_BadOutOfMemory | 0x80030000 | Not enough memory to complete the operation. |
| Bad | OpcUa_BadResourceUnavailable | 0x80040000 | An operating system resource is not available. |
| Bad | OpcUa_BadCommunicationError | 0x80050000 | A low level communication error occurred. |
| Bad | OpcUa_BadEncodingError | 0x80060000 | Encoding halted because of invalid data in the objects being serialized. |
| Bad | OpcUa_BadDecodingError | 0x80070000 | Decoding halted because of invalid data in the stream. |
| Bad | OpcUa_BadEncodingLimitsExceeded | 0x80080000 | The message encoding/decoding limits imposed by the stack have been exceeded. |
| Bad | OpcUa_BadRequestTooLarge | 0x80B80000 | The request message size exceeds limits set by the server. |
| Bad | OpcUa_BadResponseTooLarge | 0x80B90000 | The response message size exceeds limits set by the client. |
| Bad | OpcUa_BadUnknownResponse | 0x80090000 | An unrecognized response was received from the server. |
| Bad | OpcUa_BadTimeout | 0x800A0000 | The operation timed out. |
| Bad | OpcUa_BadServiceUnsupported | 0x800B0000 | The server does not support the requested service. |
| Bad | OpcUa_BadShutdown | 0x800C0000 | The operation was cancelled because the application is shutting down. |
| Bad | OpcUa_BadServerNotConnected | 0x800D0000 | The operation could not complete because the client is not connected to the server. |
| Bad | OpcUa_BadServerHalted | 0x800E0000 | The server has stopped and cannot process any requests. |
| Bad | OpcUa_BadNothingToDo | 0x800F0000 | There was nothing to do because the client passed a list of operations with no elements. |
| Bad | OpcUa_BadTooManyOperations | 0x80100000 | The request could not be processed because it specified too many operations. |
| Bad | OpcUa_BadDataTypeIdUnknown | 0x80110000 | The extension object cannot be (de)serialized because the data type id is not recognized. |
| Bad | OpcUa_BadCertificateInvalid | 0x80120000 | The certificate provided as a parameter is not valid. |
| Bad | OpcUa_BadSecurityChecksFailed | 0x80130000 | An error occurred verifying security. |
| Bad | OpcUa_BadCertificateTimeInvalid | 0x80140000 | The Certificate has expired or is not yet valid. |
| Bad | OpcUa_BadCertificateIssuerTimeInvalid | 0x80150000 | An Issuer Certificate has expired or is not yet valid. |
| Bad | OpcUa_BadCertificateHostNameInvalid | 0x80160000 | The HostName used to connect to a Server does not match a HostName in the Certificate. |
| Bad | OpcUa_BadCertificateUriInvalid | 0x80170000 | The URI specified in the ApplicationDescription does not match the URI in the Certificate. |
| Bad | OpcUa_BadCertificateUseNotAllowed | 0x80180000 | The Certificate may not be used for the requested operation. |
| Bad | OpcUa_BadCertificateIssuerUseNotAllowed | 0x80190000 | The Issuer Certificate may not be used for the requested operation. |
| Bad | OpcUa_BadCertificateUntrusted | 0x801A0000 | The Certificate is not trusted. |
| Bad | OpcUa_BadCertificateRevocationUnknown | 0x801B0000 | It was not possible to determine if the Certificate has been revoked. |
| Bad | OpcUa_BadCertificateIssuerRevocationUnknown | 0x801C0000 | It was not possible to determine if the Issuer Certificate has been revoked. |
| Bad | OpcUa_BadCertificateRevoked | 0x801D0000 | The Certificate has been revoked. |
| Bad | OpcUa_BadCertificateIssuerRevoked | 0x801E0000 | The Issuer Certificate has been revoked. |
| Bad | OpcUa_BadUserAccessDenied | 0x801F0000 | User does not have permission to perform the requested operation. |
| Bad | OpcUa_BadIdentityTokenInvalid | 0x80200000 | The user identity token is not valid. |
| Bad | OpcUa_BadIdentityTokenRejected | 0x80210000 | The user identity token is valid but the server has rejected it. |
| Bad | OpcUa_BadSecureChannelIdInvalid | 0x80220000 | The specified secure channel is no longer valid. |
| Bad | OpcUa_BadInvalidTimestamp | 0x80230000 | The timestamp is outside the range allowed by the server. |
| Bad | OpcUa_BadNonceInvalid | 0x80240000 | The nonce does not appear to be random or is not the correct length. |
| Bad | OpcUa_BadSessionIdInvalid | 0x80250000 | The session id is not valid. |
| Bad | OpcUa_BadSessionClosed | 0x80260000 | The session was closed by the client. |
| Bad | OpcUa_BadSessionNotActivated | 0x80270000 | The session cannot be used because ActivateSession has not been called. |
| Bad | OpcUa_BadSubscriptionIdInvalid | 0x80280000 | The subscription id is not valid. |
| Bad | OpcUa_BadRequestHeaderInvalid | 0x802A0000 | The header for the request is missing or invalid. |
| Bad | OpcUa_BadTimestampsToReturnInvalid | 0x802B0000 | The timestamps to return parameter is invalid. |
| Bad | OpcUa_BadRequestCancelledByClient | 0x802C0000 | The request was cancelled by the client. |
| Bad | OpcUa_BadNoCommunication | 0x80310000 | Communication with the data source is defined, but not established, and there is no last known value available. |
| Bad | OpcUa_BadWaitingForInitialData | 0x80320000 | Waiting for the server to obtain values from the underlying data source. |
| Bad | OpcUa_BadNodeIdInvalid | 0x80330000 | The syntax of the node id is not valid. |
| Bad | OpcUa_BadNodeIdUnknown | 0x80340000 | The node id refers to a node that does not exist in the server address space. |
| Bad | OpcUa_BadAttributeIdInvalid | 0x80350000 | The attribute is not supported for the specified Node. |
| Bad | OpcUa_BadIndexRangeInvalid | 0x80360000 | The syntax of the index range parameter is invalid. |
| Bad | OpcUa_BadIndexRangeNoData | 0x80370000 | No data exists within the range of indexes specified. |
| Bad | OpcUa_BadDataEncodingInvalid | 0x80380000 | The data encoding is invalid. |
| Bad | OpcUa_BadDataEncodingUnsupported | 0x80390000 | The server does not support the requested data encoding for the node. |
| Bad | OpcUa_BadNotReadable | 0x803A0000 | The access level does not allow reading or subscribing to the Node. |
| Bad | OpcUa_BadNotWritable | 0x803B0000 | The access level does not allow writing to the Node. |
| Bad | OpcUa_BadOutOfRange | 0x803C0000 | The value was out of range. |
| Bad | OpcUa_BadNotSupported | 0x803D0000 | The requested operation is not supported. |
| Bad | OpcUa_BadNotFound | 0x803E0000 | A requested item was not found or a search operation ended without success. |
| Bad | OpcUa_BadObjectDeleted | 0x803F0000 | The object cannot be used because it has been deleted. |
| Bad | OpcUa_BadNotImplemented | 0x80400000 | Requested operation is not implemented. |
| Bad | OpcUa_BadMonitoringModeInvalid | 0x80410000 | The monitoring mode is invalid. |
| Bad | OpcUa_BadMonitoredItemIdInvalid | 0x80420000 | The monitoring item id does not refer to a valid monitored item. |
| Bad | OpcUa_BadMonitoredItemFilterInvalid | 0x80430000 | The monitored item filter parameter is not valid. |
| Bad | OpcUa_BadMonitoredItemFilterUnsupported | 0x80440000 | The server does not support the requested monitored item filter. |
| Bad | OpcUa_BadFilterNotAllowed | 0x80450000 | A monitoring filter cannot be used in combination with the attribute specified. |
| Bad | OpcUa_BadStructureMissing | 0x80460000 | A mandatory structured parameter was missing or null. |
| Bad | OpcUa_BadEventFilterInvalid | 0x80470000 | The event filter is not valid. |
| Bad | OpcUa_BadContentFilterInvalid | 0x80480000 | The content filter is not valid. |
| Bad | OpcUa_BadFilterOperandInvalid | 0x80490000 | The operand used in a content filter is not valid. |
| Bad | OpcUa_BadContinuationPointInvalid | 0x804A0000 | The continuation point provided is no longer valid. |
| Bad | OpcUa_BadNoContinuationPoints | 0x804B0000 | The operation could not be processed because all continuation points have been allocated. |
| Bad | OpcUa_BadReferenceTypeIdInvalid | 0x804C0000 | The reference type id does not refer to a valid reference type. |
| Bad | OpcUa_BadBrowseDirectionInvalid | 0x804D0000 | The browse direction is not valid. |
| Bad | OpcUa_BadNodeNotInView | 0x804E0000 | The node is not part of the view. |
| Bad | OpcUa_BadServerUriInvalid | 0x804F0000 | The ServerUri is not a valid URI. |
| Bad | OpcUa_BadServerNameMissing | 0x80500000 | No ServerName was specified. |
| Bad | OpcUa_BadDiscoveryUrlMissing | 0x80510000 | No DiscoveryUrl was specified. |
| Bad | OpcUa_BadSempahoreFileMissing | 0x80520000 | The semaphore file specified by the client is not valid. |
| Bad | OpcUa_BadRequestTypeInvalid | 0x80530000 | The security token request type is not valid. |
| Bad | OpcUa_BadSecurityModeRejected | 0x80540000 | The security mode does not meet the requirements set by the Server. |
| Bad | OpcUa_BadSecurityPolicyRejected | 0x80550000 | The security policy does not meet the requirements set by the Server. |
| Bad | OpcUa_BadTooManySessions | 0x80560000 | The server has reached its maximum number of sessions. |
| Bad | OpcUa_BadUserSignatureInvalid | 0x80570000 | The user token signature is missing or invalid. |
| Bad | OpcUa_BadApplicationSignatureInvalid | 0x80580000 | The signature generated with the client certificate is missing or invalid. |
| Bad | OpcUa_BadNoValidCertificates | 0x80590000 | The client did not provide at least one software certificate that is valid and meets the profile requirements for the server. |
| Bad | OpcUa_BadRequestCancelledByRequest | 0x805A0000 | The request was cancelled by the client with the Cancel service. |
| Bad | OpcUa_BadParentNodeIdInvalid | 0x805B0000 | The parent node id does not refer to a valid node. |
| Bad | OpcUa_BadReferenceNotAllowed | 0x805C0000 | The reference could not be created because it violates constraints imposed by the data model. |
| Bad | OpcUa_BadNodeIdRejected | 0x805D0000 | The requested node id was rejected because it was either invalid or not allowed by the server. |
| Bad | OpcUa_BadNodeIdExists | 0x805E0000 | The requested node id is already used by another node. |
| Bad | OpcUa_BadNodeClassInvalid | 0x805F0000 | The node class is not valid. |
| Bad | OpcUa_BadBrowseNameInvalid | 0x80600000 | The browse name is invalid. |
| Bad | OpcUa_BadBrowseNameDuplicated | 0x80610000 | The browse name is not unique among nodes that share the same relationship with the parent. |
| Bad | OpcUa_BadNodeAttributesInvalid | 0x80620000 | The node attributes are not valid for the node class. |
| Bad | OpcUa_BadTypeDefinitionInvalid | 0x80630000 | The type definition node id does not reference an appropriate type node. |
| Bad | OpcUa_BadSourceNodeIdInvalid | 0x80640000 | The source node id does not reference a valid node. |
| Bad | OpcUa_BadTargetNodeIdInvalid | 0x80650000 | The target node id does not reference a valid node. |
| Bad | OpcUa_BadDuplicateReferenceNotAllowed | 0x80660000 | The reference type between the nodes is already defined. |
| Bad | OpcUa_BadInvalidSelfReference | 0x80670000 | The server does not allow this type of self reference on this node. |
| Bad | OpcUa_BadReferenceLocalOnly | 0x80680000 | The reference type is not valid for a reference to a remote server. |
| Bad | OpcUa_BadNoDeleteRights | 0x80690000 | The server will not allow the node to be deleted. |
| Bad | OpcUa_BadServerIndexInvalid | 0x806A0000 | The server index is not valid. |
| Bad | OpcUa_BadViewIdUnknown | 0x806B0000 | The view id does not refer to a valid view node. |
| Bad | OpcUa_BadMaxAgeInvalid | 0x80700000 | The max age parameter is invalid. |
| Bad | OpcUa_BadHistoryOperationInvalid | 0x80710000 | The history details parameter is not valid. |
| Bad | OpcUa_BadHistoryOperationUnsupported | 0x80720000 | The server does not support the requested operation. |
| Bad | OpcUa_BadWriteNotSupported | 0x80730000 | The server does not support writing the combination of value, status and timestamps provided. |
| Bad | OpcUa_BadTypeMismatch | 0x80740000 | The value supplied for the attribute is not of the same type as the attribute’s value. |
| Bad | OpcUa_BadMethodInvalid | 0x80750000 | The method id does not refer to a method for the specified object. |
| Bad | OpcUa_BadArgumentsMissing | 0x80760000 | The client did not specify all of the input arguments for the method. |
| Bad | OpcUa_BadTooManySubscriptions | 0x80770000 | The server has reached its maximum number of subscriptions. |
| Bad | OpcUa_BadTooManyPublishRequests | 0x80780000 | The server has reached the maximum number of queued publish requests. |
| Bad | OpcUa_BadNoSubscription | 0x80790000 | There is no subscription available for this session. |
| Bad | OpcUa_BadSequenceNumberUnknown | 0x807A0000 | The sequence number is unknown to the server. |
| Bad | OpcUa_BadMessageNotAvailable | 0x807B0000 | The requested notification message is no longer available. |
| Bad | OpcUa_BadInsufficientClientProfile | 0x807C0000 | The Client of the current Session does not support one or more Profiles that are necessary for the Subscription. |
| Bad | OpcUa_BadTcpServerTooBusy | 0x807D0000 | The server cannot process the request because it is too busy. |
| Bad | OpcUa_BadTcpMessageTypeInvalid | 0x807E0000 | The type of the message specified in the header invalid. |
| Bad | OpcUa_BadTcpSecureChannelUnknown | 0x807F0000 | The SecureChannelId and/or TokenId are not currently in use. |
| Bad | OpcUa_BadTcpMessageTooLarge | 0x80800000 | The size of the message specified in the header is too large. |
| Bad | OpcUa_BadTcpNotEnoughResources | 0x80810000 | There are not enough resources to process the request. |
| Bad | OpcUa_BadTcpInternalError | 0x80820000 | An internal error occurred. |
| Bad | OpcUa_BadTcpEndpointUrlInvalid | 0x80830000 | The Server does not recognize the QueryString specified. |
| Bad | OpcUa_BadRequestInterrupted | 0x80840000 | The request could not be sent because of a network interruption. |
| Bad | OpcUa_BadRequestTimeout | 0x80850000 | Timeout occurred while processing the request. |
| Bad | OpcUa_BadSecureChannelClosed | 0x80860000 | The secure channel has been closed. |
| Bad | OpcUa_BadSecureChannelTokenUnknown | 0x80870000 | The token has expired or is not recognized. |
| Bad | OpcUa_BadSequenceNumberInvalid | 0x80880000 | The sequence number is not valid. |
| Bad | OpcUa_BadProtocolVersionUnsupported | 0x80BE0000 | The applications do not have compatible protocol versions. |
| Bad | OpcUa_BadConfigurationError | 0x80890000 | There is a problem with the configuration that affects the usefulness of the value. |
| Bad | OpcUa_BadNotConnected | 0x808A0000 | The variable should receive its value from another variable, but has never been configured to do so. |
| Bad | OpcUa_BadDeviceFailure | 0x808B0000 | There has been a failure in the device/data source that generates the value that has affected the value. |
| Bad | OpcUa_BadSensorFailure | 0x808C0000 | There has been a failure in the sensor from which the value is derived by the device/data source. |
| Bad | OpcUa_BadOutOfService | 0x808D0000 | The source of the data is not operational. |
| Bad | OpcUa_BadDeadbandFilterInvalid | 0x808E0000 | The deadband filter is not valid. |
| Bad | OpcUa_BadRefreshInProgress | 0x80970000 | This Condition refresh failed, a Condition refresh operation is already in progress. |
| Bad | OpcUa_BadConditionAlreadyDisabled | 0x80980000 | This condition has already been disabled. |
| Bad | OpcUa_BadConditionDisabled | 0x80990000 | Property not available, this condition is disabled. |
| Bad | OpcUa_BadEventIdUnknown | 0x809A0000 | The specified event id is not recognized. |
| Bad | OpcUa_BadNoData | 0x809B0000 | No data exists for the requested time range or event filter. |
| Bad | OpcUa_BadDataLost | 0x809D0000 | Data is missing due to collection started/stopped/lost. |
| Bad | OpcUa_BadDataUnavailable | 0x809E0000 | Expected data is unavailable for the requested time range due to temporary unavailability. |
| Bad | OpcUa_BadEntryExists | 0x809F0000 | The data or event was not successfully inserted because a matching entry exists. |
| Bad | OpcUa_BadNoEntryExists | 0x80A00000 | The data or event was not successfully updated because no matching entry exists. |
| Bad | OpcUa_BadTimestampNotSupported | 0x80A10000 | Client requested history using an unsupported timestamp format. |
| Bad | OpcUa_BadInvalidArgument | 0x80AB0000 | One or more arguments are invalid. |
| Bad | OpcUa_BadConnectionRejected | 0x80AC0000 | Could not establish a network connection to remote server. |
| Bad | OpcUa_BadDisconnect | 0x80AD0000 | The server has disconnected from the client. |
| Bad | OpcUa_BadConnectionClosed | 0x80AE0000 | The network connection has been closed. |
| Bad | OpcUa_BadInvalidState | 0x80AF0000 | The object is closed, uninitialized or in an invalid state. |
| Bad | OpcUa_BadEndOfStream | 0x80B00000 | Cannot move beyond end of the stream. |
| Bad | OpcUa_BadNoDataAvailable | 0x80B10000 | No data is currently available for reading from a non-blocking stream. |
| Bad | OpcUa_BadWaitingForResponse | 0x80B20000 | The asynchronous operation is waiting for a response. |
| Bad | OpcUa_BadOperationAbandoned | 0x80B30000 | The asynchronous operation was abandoned by the caller. |
| Bad | OpcUa_BadExpectedStreamToBlock | 0x80B40000 | The stream did not return all data requested. |
| Bad | OpcUa_BadWouldBlock | 0x80B50000 | Non blocking behaviour is required and the operation would block. |
| Bad | OpcUa_BadSyntaxError | 0x80B60000 | A value had an invalid syntax. |
| Bad | OpcUa_BadMaxConnectionsReached | 0x80B70000 | All available connections are in use. |
| Bad | OpcUa_BadEventNotAcknowledgeable | 0x80BB0000 | The event cannot be acknowledged. |
| Bad | OpcUa_BadStateNotActive | 0x80BF0000 | The sub-state machine is not currently active. |
| Bad | OpcUa_BadFilterOperatorInvalid | 0x80C10000 | An unrecognized operator was provided in a filter. |
| Bad | OpcUa_BadFilterOperatorUnsupported | 0x80C20000 | A valid operator was provided, but the server does not provide support for this filter operator. |
| Bad | OpcUa_BadFilterOperandCountMismatch | 0x80C30000 | The number of operands provided for the filter operator was less than expected. |
| Bad | OpcUa_BadFilterElementInvalid | 0x80C40000 | The referenced element is not a valid element in the content filter. |
| Bad | OpcUa_BadFilterLiteralInvalid | 0x80C50000 | The referenced literal is not a valid value. |
| Bad | OpcUa_BadIdentityChangeNotSupported | 0x80C60000 | The Server does not support changing the user identity assigned to the session. |
| Bad | OpcUa_BadViewTimestampInvalid | 0x80C90000 | The view timestamp is not available or not supported. |
| Bad | OpcUa_BadViewParameterMismatch | 0x80CA0000 | The view parameters are not consistent with each other. |
| Bad | OpcUa_BadViewVersionInvalid | 0x80CB0000 | The view version is not available or not supported. |
| Bad | OpcUa_BadConditionAlreadyEnabled | 0x80CC0000 | This condition has already been enabled. |
| Bad | OpcUa_BadDialogNotActive | 0x80CD0000 | The dialog condition is not active. |
| Bad | OpcUa_BadDialogResponseInvalid | 0x80CE0000 | The response is not valid for the dialog. |
| Bad | OpcUa_BadConditionBranchAlreadyAcked | 0x80CF0000 | The condition branch has already been acknowledged. |
| Bad | OpcUa_BadConditionBranchAlreadyConfirmed | 0x80D00000 | The condition branch has already been confirmed. |
| Bad | OpcUa_BadConditionAlreadyShelved | 0x80D10000 | The condition has already been shelved. |
| Bad | OpcUa_BadConditionNotShelved | 0x80D20000 | The condition is not currently shelved. |
| Bad | OpcUa_BadShelvingTimeOutOfRange | 0x80D30000 | The shelving time not within an acceptable range. |
| Bad | OpcUa_BadAggregateListMismatch | 0x80D40000 | The requested number of Aggregates does not match the requested number of NodeIds. |
| Bad | OpcUa_BadAggregateNotSupported | 0x80D50000 | The requested Aggregate is not support by the server. |
| Bad | OpcUa_BadAggregateInvalidInputs | 0x80D60000 | The aggregate value could not be derived due to invalid data inputs. |
| Bad | OpcUa_BadBoundNotFound | 0x80D70000 | No data found to provide upper or lower bound value. |
| Bad | OpcUa_BadBoundNotSupported | 0x80D80000 | The server cannot retrieve a bound for the variable. |
| Bad | OpcUa_BadAggregateConfigurationRejected | 0x80DA0000 | The aggregate configuration is not valid for specified node. |
| Bad | OpcUa_BadCertificateChainIncomplete | 0x810D0000 | The certificate chain is incomplete. |
| Bad | OpcUa_BadCertificatePolicyCheckFailed | 0x81140000 | The certificate does not meet the requirements of the security policy. |
| Bad | OpcUa_BadAlreadyExists | 0x81150000 | An equivalent rule or node already exists. |
