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OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

3.2.2 GSDML

GSDML The G eneral S tation D escription M arkup L anguage is an XML-based description language for PROFINET Devices (see [ GSDML
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

3.1 Overview

Generic Information Model. This functional Information Model is created using information found in GSDML Device description files, comprising elements of already existing IO Data and Parameter descriptions as well
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

3.2.1 General Station Description (GSD)

Data , IO Channels , Parameters and Alarms . The format defined for the GSD is the GSDML
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

3.2.11 Device

Parameters, the Alarms, and the Data Objects of a Device are described in the GSDML file
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

4.1 Introduction to PROFINET GSD Generic Model

standardized way to describe a PROFINET Device in machine-readable format is the GSDML file (see [ GSDML ]). GSDML files are provided by the vendors of PROFINET Devices, and the primary ... systems (TIA Portal and the like). This primary purpose was extended by enhancing the GSDML with additional information used for Device certification, and for the purpose of this specification elements
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.1 Information Model Creation

from the Device. With Vendor-ID and Device-ID the Server finds the matching GSDML file. The GSDML file must have made accessible for the Server beforehand, see 4.1 also ... Data by reading the corresponding "(Virtual)SubmoduleItem/IOData" elements in the GSDML file and creates the GsdGenIoDataType Objects and their components representing the IO Data of the Submodule
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.2 Application Object

Device . The GsdGenSubmoduleApplicationType Object aggregates the representation of the elements found in the GSDML file. As specified in [ OPC RIO ], the Information Model is divided into a PROFINET aspect ... Data" sub-aspect contains the generic IO Data mapping derived from the GSDML "(Virtual)SubmoduleItem/IOData" element. The "Parameters" sub-aspect contains the generic Parameter record
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.3 IO Data

RepresentsSameEntityAs ReferenceType . Figure 8 - XML Schema of Input and Output elements in GSDML The IO Data is described using "DataItem" elements. In particular, the "DataItem" elements ... together determine the size and layout of the memory allocated for IO Data (see [ GSDML ], 8.12 for a thorough description). Figure 9 shows the XML schema of the "DataItem
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.4 IO Channel

item ("Data Item 1"). Figure 12 - XML Schema of Channel elements in GSDML Each channel specified has a unique channel number defined by the "Number" attribute ... point into a data item also (see channel "Data" element specification in [ GSDML ], 8 ff.). The mandatory "BitLength" attribute specifies the length of the channel data
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.6 Parameters

part of a parameter record described by the "ParameterRecordDataItem" element in the GSDML . Each GsdGenParameterVariableType Variable shall be part of the "Configuration" folder. The optional Index ... Parameters without dissecting the Parameter record structure. Figure 15 shows the schema of the GSDML "ParameterRecordDataItem" elements describing Parameter records. The Server shall use the "Index
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.7 Data Objects

contains additional data values modelled as Variables or Properties for one Submodule if the GSDML contains a "(Virtual)SubmoduleItem/AvailableRecordDataList". Figure 19 - AvailableRecordDataList child element schema Figure 19 shows ... schema of the "AvailableRecordDataList" XML elements in the GSDML . The "AvailableRecordDataList" element contains "RecordDataRef" elements referencing "ParameterRecordDataItem" elements in the "ApplicationProcess/RecordDataList
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

6.10 Alarms

evaluating the corresponding XML element. The Server shall evaluate the "ChannelProcessAlarmList" GSDML element and its "ChannelProcessAlarmItem", "SystemDefinedChannelProcessAlarmItem" and "ProfileChannelProcessAlarmItem" child elements. Figure ... shows the GSDML structure of the "ChannelProcessAlarmList" child element of the "ApplicationProcess" element (see [ GSDML ], 8.9.7 ChannelProcessAlarmList
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

7.1.1 SetApplicationTag Method

Data Objects which shall be represented as Variables . The BrowseName is either the GSDML Name (see Table 64 ) or the BMP Name (see Table 65 ) for BMPs . Data Objects with ... Variables ( <UnitVariable> and <UnitRangeVariable> placeholders). The BrowseName is either the GSDML Name (see Table 64 ) or the BMP Name (see Table 65 ) for BMPs . The EngineeringUnit
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

7.2 GsdGenIoDataType

Consistency" attribute of the "Input" ("Output") GSDML element. The <DataItemx> 0:HasComponent Reference points to a GsdGenIoDataItemVariableType Variable representing the Input Data (Output ... child elements of the "Input" ("Output") element in the GSDML (see Figure 10 also). To ensure unique BrowseNames , the Server shall substitute
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

7.3 GsdGenIoChannelType

shall be equal to the content of the "Number" attribute of the GSDML "Channel" element. The Data Object represents the content of the "Data ... child element of the GSDML "Channel" element. The Quality Object represents the content of the "Quality" child element of the GSDML "Channel" element
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

7.4 GsdGenIoChannelDataType

shall be equal to the content of the "BitOffset" attribute of the GSDML "Data" child element of the "Channel" element. It contains the offset ... shall be equal to the content of the "BitLength" attribute of the GSDML "Data" child element of the "Channel" element. It contains the length
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

7.5 GsdGenIoChannelQualityType

shall be equal to the content of the "BitOffset" attribute of the GSDML "Quality" child element of the "Channel" element. It contains the offset ... shall be equal to the content of the "Format" attribute of the GSDML "Quality" child element of the "Channel" element. It specifies the size
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

8.1 GsdGenAlarmEventType

Message variable of the Event and the HelpText variable are retrieved from the GSDML file. If the message includes a dynamic format string, this is replaced by the ExtChannelAddValue
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

9.1 GsdGenIoDataItemVariableType

GsdGenIoDataItemVariableType The GsdGenIoDataItemVariableType is a subtype of the 0:BaseDataVariableType and represents the GSDML "DataItem" element. It is formally defined in Table 27 . Table 27 - GsdGenIoDataItemVariableType definition Attribute ... this type shall be provided. The <BitDataItem> GsdGenIoBitDataItemVariableType Variable represents one GSDML "BitDataItem" child element of the "DataItem" element. There shall be as many
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

9.2 GsdGenIoBitDataItemVariableType

GsdGenIoBitDataItemVariableType The GsdGenIoBitDataItemVariableType is a subtype of the 0:BaseDataVariableType and represents the GSDML "BitDataItem" element. It is formally defined in Table 28 . Table 28 - GsdGenIoBitDataItemVariableType definition Attribute ... GsdGenIoBitDataItemVariableType Variable equal to the content of the "BitOffset" attribute of the GSDML "BitDataItem" element the Variable represents
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

9.3 GsdGenParameterVariableType

GsdGenParameterVariableType The GsdGenParameterVariableType is a subtype of the 0:BaseDataVariableType and represents the GSDML "Ref" element (see 6.5 .). It is formally defined in Table 29 . Table 29 - GsdGenParameterVariableType ... detailed description of the "Ref" element and it attributes see [ GSDML
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

C.2 RecordMeta child elements

sequence of "RefMeta" elements (see Table 63 ), as shown in the GSDML sample in E.1 . The "Length" attribute of the "ParameterRecordDataItem" element is mandatory ... protocol as defined in [ PDP ], chapter 6.2.3 "Base Mode Parameter Access" (see GSDML sample in E.1 also). Table 63 shows the required content of the "RefMeta
OPC-30144 – OPC UA for PROFINET GSD Generic Model - Part 30144: PROFINET GSD Generic Model

E.1 GSDML sample for Data Object specification

GSDML sample for Data Object specification The following GSDML snippet contains a sample "RecordDataList" defining Data Objects . <RecordDataList> <ParameterRecordDataItem ID="Readable_Record