OPC UA Status Codes

The following table describes the different status codes that a user can set for each connection on a data point:

Name	Hexadecimal value	Decimal value	Description
Good	0	0	No errors occurred.
BadUnexpectedError	0x80010000	2147549184	An unexpected error occurred.
BadInternalError	0x80020000	2147614720	An internal error occurred as a result of a programming or configuration error.
BadOutOfMemory	0x80030000	2147680256	Not enough memory to complete the operation.
BadResourceUnavailable	0x80040000	2147745792	An operating system resource is not available.
BadCommunicationError	0x80050000	2147811328	A low level communication error occurred.
BadEncodingError	0x80060000	2147876864	Encoding halted because of invalid data in the objects being serialized.
BadDecodingError	0x80070000	2147942400	Decoding halted because of invalid data in the stream.
BadEncodingLimitsExceeded	0x80080000	2148007936	The message encoding/decoding limits imposed by the stack have been exceeded.
BadRequestTooLarge	0x80B80000	2159542272	The request message size exceeds limits set by the server.
BadResponseTooLarge	0x80B90000	2159607808	The response message size exceeds limits set by the client.
BadUnknownResponse	0x80090000	2148073472	An unrecognized response was received from the server.
BadTimeout	0x800A0000	2148139008	The operation timed out.
BadServiceUnsupported	0x800B0000	2148204544	The server does not support the requested service.
BadShutdown	0x800C0000	2148270080	The operation was cancelled because the application is shutting down.
BadServerNotConnected	0x800D0000	2148335616	The operation could not complete because the client is not connected to the server.
BadServerHalted	0x800E0000	2148401152	The server has stopped and cannot process any requests.
BadNothingToDo	0x800F0000	2148466688	There was nothing to do because the client passed a list of operations with no elements.
BadTooManyOperations	0x80100000	2148532224	The request could not be processed because it specified too many operations.
BadDataTypeIdUnknown	0x80110000	2148597760	The extension object cannot be (de)serialized because the data type id is not recognized.
BadCertificateInvalid	0x80120000	2148663296	The certificate provided as a parameter is not valid.
BadSecurityChecksFailed	0x80130000	2148728832	An error occurred verifying security.
BadCertificateTimeInvalid	0x80140000	2148794368	The Certificate has expired or is not yet valid.
BadCertificateIssuerTimeInvalid	0x80150000	2148859904	An Issuer Certificate has expired or is not yet valid.
BadCertificateHostNameInvalid	0x80160000	2148925440	The HostName used to connect to a Server does not match a HostName in the Certificate.
BadCertificateUriInvalid	0x80170000	2148990976	The URI specified in the ApplicationDescription does not match the URI in the Certificate.
BadCertificateUseNotAllowed	0x80180000	2149056512	The Certificate may not be used for the requested operation.
BadCertificateIssuerUseNotAllowed	0x80190000	2149122048	The Issuer Certificate may not be used for the requested operation.
BadCertificateUntrusted	0x801A0000	2149187584	The Certificate is not trusted.
BadCertificateRevocationUnknown	0x801B0000	2149253120	It was not possible to determine if the Certificate has been revoked.
BadCertificateIssuerRevocationUnknown	0x801C0000	2149318656	It was not possible to determine if the Issuer Certificate has been revoked.
BadCertificateRevoked	0x801D0000	2149384192	The Certificate has been revoked.
BadCertificateIssuerRevoked	0x801E0000	2149449728	The Issuer Certificate has been revoked.
BadUserAccessDenied	0x801F0000	2149515264	User does not have permission to perform the requested operation.
BadIdentityTokenInvalid	0x80200000	2149580800	The user identity token is not valid.
BadIdentityTokenRejected	0x80210000	2149646336	The user identity token is valid but the server has rejected it.
BadSecureChannelIdInvalid	0x80220000	2149711872	The specified secure channel is not longer valid.
BadInvalidTimestamp	0x80230000	2149777408	The timestamp is outside the range allowed by the server.
BadNonceInvalid	0x80240000	2149842944	The nonce does appear to be not a random value or it is not the correct length.
BadSessionIdInvalid	0x80250000	2149908480	The session id is not valid.
BadSessionClosed	0x80260000	2149974016	The session was closed by the client.
BadSessionNotActivated	0x80270000	2150039552	The session cannot be used because ActivateSession has not been called.
BadSubscriptionIdInvalid	0x80280000	2150105088	The subscription id is not valid.
BadRequestHeaderInvalid	0x802A0000	2150236160	The header for the request is missing or invalid.
BadTimestampsToReturnInvalid	0x802B0000	2150301696	The timestamps to return parameter is invalid.
BadRequestCancelledByClient	0x802C0000	2150367232	The request was cancelled by the client.
GoodSubscriptionTransferred	0x002D0000	2949120	The subscription was transferred to another session.
GoodCompletesAsynchronously	0x002E0000	3014656	The processing will complete asynchronously.
GoodOverload	0x002F0000	3080192	Sampling has slowed down due to resource limitations.
GoodClamped	0x00300000	3145728	The value written was accepted but was clamped.
BadNoCommunication	0x80310000	2150694912	Communication with the data source is defined, but not established, and there is no last known value available.
BadWaitingForInitialData	0x80320000	2150760448	Waiting for the server to obtain values from the underlying data source.
BadNodeIdInvalid	0x80330000	2150825984	The syntax of the node id is not valid.
BadNodeIdUnknown	0x80340000	2150891520	The node id refers to a node that does not exist in the server address space.
BadAttributeIdInvalid	0x80350000	2150957056	The attribute is not supported for the specified Node.
BadIndexRangeInvalid	0x80360000	2151022592	The syntax of the index range parameter is invalid.
BadIndexRangeNoData	0x80370000	2151088128	No data exists within the range of indexes specified.
BadDataEncodingInvalid	0x80380000	2151153664	The data encoding is invalid.
BadDataEncodingUnsupported	0x80390000	2151219200	The server does not support the requested data encoding for the node.
BadNotReadable	0x803A0000	2151284736	The access level does not allow reading or subscribing to the Node.
BadNotWritable	0x803B0000	2151350272	The access level does not allow writing to the Node.
BadOutOfRange	0x803C0000	2151415808	The value was out of range.
BadNotSupported	0x803D0000	2151481344	The requested operation is not supported.
BadNotFound	0x803E0000	2151546880	A requested item was not found or a search operation ended without success.
BadObjectDeleted	0x803F0000	2151612416	The object cannot be used because it has been deleted.
BadNotImplemented	0x80400000	2151677952	Requested operation is not implemented.
BadMonitoringModeInvalid	0x80410000	2151743488	The monitoring mode is invalid.
BadMonitoredItemIdInvalid	0x80420000	2151809024	The monitoring item id does not refer to a valid monitored item.
BadMonitoredItemFilterInvalid	0x80430000	2151874560	The monitored item filter parameter is not valid.
BadMonitoredItemFilterUnsupported	0x80440000	2151940096	The server does not support the requested monitored item filter.
BadFilterNotAllowed	0x80450000	2152005632	A monitoring filter cannot be used in combination with the attribute specified.
BadStructureMissing	0x80460000	2152071168	A mandadatory structured parameter was missing or null.
BadEventFilterInvalid	0x80470000	2152136704	The event filter is not valid.
BadContentFilterInvalid	0x80480000	2152202240	The content filter is not valid.
BadFilterOperatorInvalid	0x80C10000	2160132096	An unregognized operator was provided in a filter.
BadFilterOperatorUnsupported	0x80C20000	2160197632	A valid operator was provided, but the server does not provide support for this filter operator.
BadFilterOperandCountMismatch	0x80C30000	2160263168	The number of operands provided for the filter operator was less then expected for the operand provided.
BadFilterOperandInvalid	0x80490000	2152267776	The operand used in a content filter is not valid.
BadFilterElementInvalid	0x80C40000	2160328704	The referenced element is not a valid element in the content filter.
BadFilterLiteralInvalid	0x80C50000	2160394240	The referenced literal is not a valid value.
BadContinuationPointInvalid	0x804A0000	2152333312	The continuation point provide is longer valid.
BadNoContinuationPoints	0x804B0000	2152398848	The operation could not be processed because all continuation points have been allocated.
BadReferenceTypeIdInvalid	0x804C0000	2152464384	The operation could not be processed because all continuation points have been allocated.
BadBrowseDirectionInvalid	0x804D0000	2152529920	The browse direction is not valid.
BadNodeNotInView	0x804E0000	2152595456	The node is not part of the view.
BadServerUriInvalid	0x804F0000	2152660992	The ServerUri is not a valid URI.
BadServerNameMissing	0x80500000	2152726528	No ServerName was specified.
BadDiscoveryUrlMissing	0x80510000	2152792064	No DiscoveryUrl was specified.
BadSempahoreFileMissing	0x80520000	2152857600	The semaphore file specified by the client is not valid.
BadRequestTypeInvalid	0x80530000	2152923136	The security token request type is not valid.
BadSecurityModeRejected	0x80540000	2152988672	The security mode does not meet the requirements set by the Server.
BadSecurityPolicyRejected	0x80550000	2153054208	The security policy does not meet the requirements set by the Server.
BadTooManySessions	0x80560000	2153119744	The server has reached its maximum number of sessions.
BadUserSignatureInvalid	0x80570000	2153185280	The user token signature is missing or invalid.
BadApplicationSignatureInvalid	0x80580000	2153250816	The signature generated with the client certificate is missing or invalid.
BadNoValidCertificates	0x80590000	2153316352	The client did not provide at least one software certificate that is valid and meets the profile requirements for the server.
BadIdentityChangeNotSupported	0x80C60000	2160459776	The Server does not support changing the user identity assigned to the session.
BadRequestCancelledByRequest	0x805A0000	2153381888	The request was cancelled by the client with the Cancel service.
BadParentNodeIdInvalid	0x805B0000	2153447424	The parent node id does not to refer to a valid node.
BadReferenceNotAllowed	0x805C0000	2153512960	The reference could not be created because it violates constraints imposed by the data model.
BadNodeIdRejected	0x805D0000	2153578496	The requested node id was reject because it was either invalid or server does not allow node ids to be specified by the client.
BadNodeIdExists	0x805E0000	2153644032	The requested node id is already used by another node.
BadNodeClassInvalid	0x805F0000	2153709568	The node class is not valid.
BadBrowseNameInvalid	0x80600000	2153775104	The browse name is invalid.
BadBrowseNameDuplicated	0x80610000	2153840640	The browse name is not unique among nodes that share the same relationship with the parent.
BadNodeAttributesInvalid	0x80620000	2153906176	The node attributes are not valid for the node class.
BadTypeDefinitionInvalid	0x80630000	2153971712	The type definition node id does not reference an appropriate type node.
BadSourceNodeIdInvalid	0x80640000	2154037248	The source node id does reference a valid node.
BadTargetNodeIdInvalid	0x80650000	2154102784	The target node id does reference a valid node.
BadDuplicateReferenceNotAllowed	0x80660000	2154168320	The reference type between the nodes is already defined.
BadInvalidSelfReference	0x80670000	2154233856	The server does not allow this type of self reference on this node.
BadReferenceLocalOnly	0x80680000	2154299392	The reference type is not valid for a reference to a remote server.
BadNoDeleteRights	0x80690000	2154364928	The server will not allow the node to be deleted.
UncertainReferenceNotDeleted	0x40BC0000	1086062592	The server was not able to delete all target references.
BadServerIndexInvalid	0x806A0000	2154430464	The server index is not valid.
BadViewIdUnknown	0x806B0000	2154496000	The view id does not refer to a valid view node.
BadViewTimestampInvalid	0x80C90000	2160656384	The view timestamp is not available or not supported.
BadViewParameterMismatch	0x80CA0000	2160721920	The view parameters are not consistent withe each other.
BadViewVersionInvalid	0x80CB0000	2160787456	The view version is not available or not supported.
UncertainNotAllNodesAvailable	0x40C00000	1086324736	The list of references may not be complete because the underlying system is not available.
GoodResultsMayBeIncomplete	0x00BA0000	12189696	The server should have followed a reference to a node in a remote server but did not. The result set may be incomplete.
BadNotTypeDefinition	0x80C80000	2160590848	The provided Nodeid was not a type definition nodeid.
UncertainReferenceOutOfServer	0x406C0000	1080819712	One of the references to follow in the relative path references to a node in the address space in another server.
BadTooManyMatches	0x806D0000	2154627072	The requested operation has too many matches to return.
BadQueryTooComplex	0x806E0000	2154692608	The requested operation requires too many resources in the server.
BadNoMatch	0x806F0000	2154758144	The requested operation has no match to return.
BadMaxAgeInvalid	0x80700000	2154823680	The max age parameter is invalid.
BadHistoryOperationInvalid	0x80710000	2154889216	The history details parameter is not valid.
BadHistoryOperationUnsupported	0x80720000	2154954752	The server does not support the requested operation.
BadInvalidTimestampArgument	0x80BD0000	2159869952	The defined timestamp to return was invalid.
BadWriteNotSupported	0x80730000	2155020288	The server does support writing the combination of value, status and timestamps provided.
BadTypeMismatch	0x80740000	2155085824	The value supplied for the attribute is not of the same type as the attribute's value.
BadMethodInvalid	0x80750000	2155151360	The method id does not refer to a method for the specified object.
BadArgumentsMissing	0x80760000	2155216896	The client did not specify all of the input arguments for the method.
BadTooManySubscriptions	0x80770000	2155282432	The server has reached its maximum number of subscriptions.
BadTooManyPublishRequests	0x80780000	2155347968	The server has reached the maximum number of queued publish requests.
BadNoSubscription	0x80790000	2155413504	There is no subscription available for this session.
BadSequenceNumberUnknown	0x807A0000	2155479040	The sequence number is unknown to the server.
BadMessageNotAvailable	0x807B0000	2155544576	The requested notification message is no longer available.
BadInsufficientClientProfile	0x807C0000	2155610112	The Client of the current Session does not support one or more Profiles that are necessary for the Subscription.
BadStateNotActive	0x80BF0000	2160001024	The sub-state machine is not currently active.
BadTcpServerTooBusy	0x807D0000	2155675648	The server cannot process the request because it is too busy.
BadTcpMessageTypeInvalid	0x807E0000	2155741184	The type of the message specified in the header invalid.
BadTcpSecureChannelUnknown	0x807F0000	2155806720	The SecureChannelId and/or TokenId are not currently in use.
BadTcpMessageTooLarge	0x80800000	2155872256	The size of the message specified in the header is too large.
BadTcpNotEnoughResources	0x80810000	2155937792	There are not enough resources to process the request.
BadTcpInternalError	0x80820000	2156003328	An internal error occurred.
BadTcpEndpointUrlInvalid	0x80830000	2156068864	he Server does not recognize the QueryString specified.
BadRequestInterrupted	0x80840000	2156134400	The request could not be sent because of a network interruption.
BadRequestTimeout	0x80850000	2156199936	Timeout occurred while processing the request.
BadSecureChannelClosed	0x80860000	2156265472	The secure channel has been closed.
BadSecureChannelTokenUnknown	0x80870000	2156331008	The token has expired or is not recognized.
BadSequenceNumberInvalid	0x80880000	2156396544	The sequence number is not valid.
BadProtocolVersionUnsupported	0x80BE0000	2159935488	The applications do not have compatible protocol versions.
BadConfigurationError	0x80890000	2156462080	There is a problem with the configuration that affects the usefulness of the value.
BadNotConnected	0x808A0000	2156527616	The variable should receive its value from another variable, but has never been configured to do so.
BadDeviceFailure	0x808B0000	2156593152	There has been a failure in the device/data source that generates the value that has affected the value.
BadSensorFailure	0x808C0000	2156658688	There has been a failure in the sensor from which the value is derived by the device/data source.
BadOutOfService	0x808D0000	2156724224	The source of the data is not operational.
BadDeadbandFilterInvalid	0x808E0000	2156789760	The deadband filter is not valid.
UncertainNoCommunicationLastUsableValue	0x408F0000	1083113472	Communication to the data source has failed. The variable value is the last value that had a good quality.
UncertainLastUsableValue	0x40900000	1083179008	Whatever was updating this value has stopped doing so.
UncertainSubstituteValue	0x40910000	1083244544	The value is an operational value that was manually overwritten.
UncertainInitialValue	0x40920000	1083310080	The value is an initial value for a variable that normally receives its value from another variable.
UncertainSensorNotAccurate	0x40930000	1083375616	The value is at one of the sensor limits.
UncertainEngineeringUnitsExceeded	0x40940000	1083441152	The value is outside of the range of values defined for this parameter.
UncertainSubNormal	0x40950000	1083506688	The value is derived from multiple sources and has less than the required number of Good sources.
GoodLocalOverride	0x00960000	9830400	The value has been overridden.
BadRefreshInProgress	0x80970000	2157379584	This Condition refresh failed, a Condition refresh operation is already in progress.
BadConditionAlreadyDisabled	0x80980000	2157445120	This condition has already been disabled.
BadConditionAlreadyEnabled	0x80CC0000	2160852992	This condition has already been enabled.
BadConditionDisabled	0x80990000	2157510656	Property not available, this condition is disabled.
BadEventIdUnknown	0x809A0000	2157576192	The specified event id if not recognized.
BadEventNotAcknowledgeable	0x80BB0000	2159738880	The event cannot be acknowledged.
BadDialogNotActive	0x80CD0000	2160918528	The dialog condition is not active.
BadDialogResponseInvalid	0x80CE0000	2160984064	The response is not valid for the dialog.
BadConditionBranchAlreadyAcked	0x80CF0000	2161049600	The condition branch has already been acknowledged.
BadConditionBranchAlreadyConfirmed	0x80D00000	2161115136	The condition branch has already been confirmed.
BadConditionAlreadyShelved	0x80D10000	2161180672	The condition has already been shelved.
BadConditionNotShelved	0x80D20000	2161246208	The condition is not currently shelved.
BadShelvingTimeOutOfRange	0x80D30000	2161311744	The shelving time not within an acceptable range.
BadNoData	0x809B0000	2157641728	No data exists for the requested time range or event filter.
BadNoBound	0x809C0000	2157707264	No data found to provide upper or lower bound value.
BadDataLost	0x809D0000	2157772800	Data is missing due to collection started/stopped/lost.
BadDataUnavailable	0x809E0000	2157838336	Expected data is unavailable for the requested time range due to an un-mounted volume, an off-line archive or tape, or similar reason for temporary unavailability.
BadEntryExists	0x809F0000	2157903872	The data or event was not successfully inserted because a matching entry exists.
BadNoEntryExists	0x80A00000	2157969408	The data or event was not successfully updated because no matching entry exists.
BadTimestampNotSupported	0x80A10000	2158034944	The client requested history using a timestamp format the server does not support (i.e requested ServerTimestamp when server only supports SourceTimestamp).
GoodEntryInserted	0x00A20000	10616832	The data or event was successfully inserted into the historical database.
GoodEntryReplaced	0x00A30000	10682368	The data or event field was successfully replaced in the historical database.
UncertainDataSubNormal	0x40A40000	1084489728	The value is derived from multiple values and has less than the required number of Good values.
GoodNoData	0x00A50000	10813440	No data exists for the requested time range or event filter.
GoodMoreData	0x00A60000	10878976	The data or event field was successfully replaced in the historical database.
GoodCommunicationEvent	0x00A70000	10944512	The communication layer has raised an event.
GoodShutdownEvent	0x00A80000	11010048	The system is shutting down.
GoodCallAgain	0x00A90000	11075584	The operation is not finished and needs to be called again.
GoodNonCriticalTimeout	0x00AA0000	11141120	A non-critical timeout occurred.
BadInvalidArgument	0x80AB0000	2158690304	One or more arguments are invalid.
BadConnectionRejected	0x80AC0000	2158755840	Could not establish a network connection to remote server.
BadDisconnect	0x80AD0000	2158821376	The server has disconnected from the client.
BadConnectionClosed	0x80AE0000	2158886912	The network connection has been closed.
BadInvalidState	0x80AF0000	2158952448	The operation cannot be completed because the object is closed, uninitialized or in some other invalid state.
BadEndOfStream	0x80B00000	2159017984	Cannot move beyond end of the stream.
BadNoDataAvailable	0x80B10000	2159083520	No data is currently available for reading from a non-blocking stream.
BadWaitingForResponse	0x80B20000	2159149056	The asynchronous operation is waiting for a response.
BadOperationAbandoned	0x80B30000	2159214592	The asynchronous operation was abandoned by the caller.
BadExpectedStreamToBlock	0x80B40000	2159280128	The stream did not return all data requested (possibly because it is a non-blocking stream).
BadWouldBlock	0x80B50000	2159345664	Non blocking behaviour is required and the operation would block.
BadSyntaxError	0x80B60000	2159411200	A value had an invalid syntax.
BadMaxConnectionsReached	0x80B70000	2159476736	The operation could not be finished because all available connections are in use.