The following Objects are defined to extend the DeviceType.

When the IOImageIsSupported Variable is true, the controls' hardware component supports requests of the IO Image, i.e. a synchronous snapshot of all the inputs and outputs of the controls element at the time the method is invoked.

When the LiveStreamIsSupported Variable is true, the controls' hardware component supports live stream, i.e. remotely connecting to the local HMI and streaming the live view of the HMI application back to the client.

When the RemoteConnectionIsSupported Variable is true, the controls' hardware component supports remote connection, i.e. remotely connecting to the local HMI, including streaming and remote control.

When the ScreenshotIsSupported Variable is true, the controls' hardware component supports taking a screenshot of the HMI screen at the time of the method invocation.

When the SystemDumpIsSupported Variable is true, the controls' hardware component supports saving complete system dumps.

The Variable IOImage contains the current snapshot of the inputs and outputs of the ControlsHW Object.

The Variable IOImage is a list of items of type IOPointType. The Type IOPointType is defined in Table 39.

Table 39 – IOPointType Definition

Name	Type	Description
IOPointType	Structure	Single IO Point
IOPointMeta	IOMetaType	The meta-data describing the IO point.
IOPointValue	IOValueType	The value of the IO point.

The Variable IOValueType is defined in Table 40.

Table 40 – IOValueType Definition

Name	Type	Description
IOValueType	Structure	The value of a single IO point.
TimeStamp	UtcTime	The time the value of the IO point was read in the underlying system.
RawValue	BaseDataType	The raw value of the IO point read at time TimeStamp.
EngValue	BaseDataType	The engineering value of the IO point read at time TimeStamp.

The Variable IOMetaType is defined in Table 41.

Table 41 – IOMetaType Definition

Name	Type	Description
IOMetaType	Structure	Meta-data describing a single IO point.
Description	String	The description of the IO point.
Address	String	The address of the IO point, e.g. PEW1.
IOType	IOTypeEnumeration	The data type of the IO point in the underlying system.

The Data Type IOTypeEnumeration is defined in accordance with IEC 6-1131 Part 3 in Table 42.

Table 42 – IOTypeEnumeration Definition

Enumstring	Value	Description
BYTE	0	Byte
WORD	1	Word
DWORD	2	Double Word
LWORD	3	Long Word
SINT	4	Signed Integer
INT	5	Integer
DINT	6	Double Integer
LINT	7	Long Integer
USINT	8	Unsigned Short Integer
UINT	9	Unsigned Integer
UDINT	10	Unsigned Double Integer
ULINT	11	Unsigned Long Integer
REAL	12	Real
LREAL	13	Long Real
TIME	14	Time
LTIME	15	Long Time
DATE	16	Date
LDATE	17	Long Date
TIME_OF_DAY	18	Clock Time
LTIME_OF_DAY	19	Long Clock Time
DATE_AND_TIME	20	Date and Time
LDATE_AND_TIME	21	Long Date and Time
CHAR	22	Character
WCHAR	23
STRING	24
WSTRING	25

The Method GetIOImage returns a file that represents the IO image of the controls’ hardware component. The format of the file may vary according to the proprietary nature of the controls’ hardware component.

Signature

GetIOImage (

[out]IOPointType[] IOImage

[out]MethodExecutionFeedbackType ExecutionFeedback

);

Argument	Description
IOImage	IO image as a file.
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

The Method GetLiveStream returns the URL that the client connects to to get the video stream.

Signature

GetLiveStream (

[out]String ScreenStreamURL

[out]MethodExecutionFeedbackType ExecutionFeedback

);

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound

Argument	Description
ScreenStreamURL	The url of the video stream.
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

The Method GetRemoteConnection establishes a remote connection between an OPC UA Client and an object of type ControlHWType.

Signature

GetRemoteConnection (

[out]MethodExecutionFeedbackType ExecutionFeedback

);

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound

Argument	Description
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

The Method GetScreenshot returns a screenshot of the controls’ hardware HMI at the time the method is invoked.

Signature

GetScreenshot (

[out]Image CurrentScreenshot

[out]MethodExecutionFeedbackType ExecutionFeedback

);

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound

Argument	Description
CurrentScreenshot	The screenshot in jpg, gif, bmp or png format.
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

The Method GetSupportedFeatures returns the list of features that the controls’ hardware component supports.

Signature

GetSupportedFeatures (

[out]ControlsHWFeatureEnumeration[]SupportedFeatures

[out]MethodExecutionFeedbackType ExecutionFeedback

);

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound

Argument	Description
SupportedFeatures	The list of supported features.
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

The Enumeration ControlsHWFeaturesEnumeration is defined in Table 43.

Table 43 – ControlsHWFeaturesEnumeration Definition

Enumstring	Value	Description
Other	0	None of the below.
IOImage	1	The controls’ hardware components supports IO image retrieval.
LiveStream	2	The controls’ hardware components supports live stream.
RemoteConnection	3	The controls’ hardware components supports remote connection.
ScreenshotCurrentPage	4	The controls’ hardware components supports screenshot retrieval.
SystemDump	5	The controls’ hardware components supports system dump.

Method Result Codes

The Method GetSystemDump returns a file containing the system dump. The system dump file format may be proprietary.

Signature

GetSystemDump (

[out]ByteString SystemDump

[out]MethodExecutionFeedbackType ExecutionFeedback

);

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound

Argument	Description
SystemDump	The system dump file.
ExecutionFeedback	The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

ResultCode	Description
BadNodeIdUnknown	See table 173 in OPC 10000-4 for the description of these result codes.
BadTypeMismatch
BadOutOfRange
BadNotWritable
BadNotFound