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OPC Toolbox Functions - By Category
Alphabetical List
By Category
Server Connection and Browsing
opcregister | Install and register OPC Foundation Core Components |
opcserverinfo | Version, server, and status information |
opchdaserverinfo | Query host for installed HDA servers |
opcuaserverinfo (opcua) | Query host for installed OPC UA servers |
opc.hdaSupport | OPC Toolbox HDA troubleshooting utility |
opc.daSupport | OPC Toolbox data access troubleshooting utility |
opcsupport | OPC Toolbox troubleshooting utility |
opcDataAccessExplorer | Open OPC Data Access Explorer app |
openosf | Open OPC Data Access Explorer session file |
opcfind | Find OPC Toolbox objects with specific properties |
opcda | Construct OPC data access object |
opchda | Create OPC historical data access client |
opcua (opcua) | Construct OPC UA client object |
opcuanode (opcua) | Construct OPC UA node objects |
connect | Connect OPC Toolbox client to server |
isConnected | True if HDA Client is connected to server |
disconnect | Disconnect OPC Toolbox client from server |
propinfo | Property information for OPC Toolbox objects |
obj2mfile | Convert OPC Toolbox object to MATLAB code |
opcreset | Disconnect and delete all OPC Toolbox objects |
opc.hda.reset | Disconnect and delete all OPC HDA client objects |
getnamespace (opcda) | OPC data access server name space |
getNameSpace (opchda) | OPC historical data access server name space |
getNamespace (opcua) | Namespace of server associated with client |
browsenamespace (opcda) | Graphically browse OPC DA server name space |
browseNameSpace
(opchda) | Graphically browse OPC HDA server name space |
browseNamespace
(opcua) | Graphically browse name space and select nodes from server |
flatnamespace | Flatten hierarchical OPC name space |
serveritems | Query server or name space for fully qualified item IDs |
opcserverinfo | Version, server, and status information |
opchdaserverinfo | Query host for installed HDA servers |
opcuaserverinfo
(opcua) | Query host for installed OPC UA servers |
findDescription | Locate OPC HDA servers with particular description |
readItemAttributes | Read item attribute values from OPC HDA server |
serveritemprops | Property information for items in OPC server name space |
getDescription | Get description of OPC HDA aggregate type or item attribute |
getIDFromName | Translate OPC HDA aggregate type or item attribute name to numeric identifier |
getIDList | Get all aggregate type or item attribute IDs |
getNameList | Get all aggregate type or item attribute names |
copyobj | Make copy of OPC data access object |
delete | Remove OPC Toolbox objects from memory |
isvalid | True for undeleted OPC Toolbox objects |
save | Save OPC Toolbox objects to MAT-file |
load | Load OPC Toolbox objects from MAT-file |
disp | Summary of information for OPC Toolbox objects |
get | OPC Toolbox object properties |
set | Configure or display OPC Toolbox object properties |
opchelp | Help for OPC Toolbox data access function or property |
Data Access
Item and Group Management
addgroup | Add data access group to opcda object |
additem | Add data access items to dagroup object |
clonegroup | Clone group into new private group on same client |
makepublic | Convert private group into public group |
removepublicgroup | Remove public group from server |
Data Reading and Writing
read | Read data synchronously from OPC DA groups or items |
readasync | Read data asynchronously from group or items |
write | Write values to group or items |
writeasync | Asynchronously write values to group or items |
cancelasync | Cancel asynchronous read and write operations |
Data Visualization
Data Logs and Buffers
refresh | Read all active items in group |
start | Start a logging task |
stop | Stop a logging task |
wait | Suspend MATLAB execution until object stops logging |
flushdata | Remove all logged data records associated with dagroup object |
getdata | Retrieve logged records from OPC Toolbox engine to MATLAB workspace |
peekdata | Preview most recently acquired data |
opcread | Read logged records from disk to MATLAB workspace |
opcstruct2array | Convert OPC data from structure to array format |
opcstruct2timeseries | Convert OPC data from structure to time series format |
Events and Callbacks
opccallback | Event information for OPC Toolbox callbacks |
cleareventlog | Clear event log, discarding all events |
showopcevents | Event log summary for OPC Toolbox events |
Data Access with Simulink
genslread | Generate Simulink OPC Read block from MATLAB group object |
genslwrite | Generate Simulink OPC Write block from MATLAB group object |
Historical Data Access
Raw Data
readRaw | Read raw data of specified time range from HDA server |
readModified | Read modified data from an OPC HDA server |
Processed Data
readAtTime | Read data from an OPC HDA server at specified times |
readProcessed | Read server-aggregated data from an OPC HDA server |
getDescription | Get description of OPC HDA aggregate type or item attribute |
getIDFromName | Translate OPC HDA aggregate type or item attribute name to numeric identifier |
getIDList | Get all aggregate type or item attribute IDs |
getNameList | Get all aggregate type or item attribute names |
Data Manipulation and Display
single | Convert OPC HDA data object array to single matrix |
double | Convert OPC HDA data object array to double matrix |
int8 | Convert OPC HDA data object array to int8 matrix |
int16 | Convert OPC HDA data object array to int16 matrix |
int32 | Convert OPC HDA data object array to int32 matrix |
int64 | Convert OPC HDA data object array to int64 matrix |
uint8 | Convert OPC HDA data object array to uint8 matrix |
uint16 | Convert OPC HDA data object array to uint16 matrix |
uint32 | Convert OPC HDA data object array to uint32 matrix |
uint64 | Convert OPC HDA data object array to uint64 matrix |
logical | Convert OPC HDA data object array to logical matrix |
tsintersect | Intersection of time stamp in OPC HDA data object |
tsunion | Union of time stamps in an OPC HDA data object |
arrayHasSameTimeStamp | True if all elements of OPC HDA data object have same time stamp vector |
getIndexFromID | Indices matching OPC HDA data item IDs |
resample | Resample OPC HDA data object to have defined time stamps |
opc.setDateDisplayFormat | Set format for date display of OPC objects |
opc.getDateDisplayFormat | Format for date display of OPC objects |
showValues | Display table of values for OPC HDA data object |
stairs | Plot OPC HDA data object as stairstep graph |
plot | Plot OPC HDA data object as lines |
opc.daQualityString | OPC data access part of quality ID |
opc.hdaQualityString | OPC historical data access part of quality ID |
Unified Architecture
opcuaserverinfo
(opcua) | Query host for installed OPC UA servers |
opcua (opcua) | Construct OPC UA client object |
connect (opcua) | Connect OPC UA client to server |
disconnect (opcua) | Disconnect OPC UA client from its server |
isConnected (opcua) | Determine if OPC UA client object is connected to server |
getServerStatus
(opcua) | Status of OPC UA server |
findDescription
(opcua) | Find OPC UA servers containing specified description |
opcuanode (opcua) | Construct OPC UA node objects |
getNamespace (opcua) | Namespace of server associated with client |
browseNamespace
(opcua) | Graphically browse name space and select nodes from server |
readValue (opcua) | Read values from nodes on OPC UA server |
writeValue (opcua) | Write values to nodes on OPC UA server |
readHistory (opcua) | Read historical data from nodes on OPC UA server |
readAtTime (opcua) | Read historical data from nodes of an OPC UA server at specific times |
readProcessed
(opcua) | Read aggregate data from nodes of an OPC UA server |
findNodeByName
(opcua) | Find nodes by name |
findNodeById (opcua) | Find nodes by namespace index and identifier |
isEmptyNode (opcua) | True for empty nodes of OPC UA node array |
isVariableType
(opcua) | True for variable nodes of OPC UA server |
isObjectType (opcua) | True for object nodes of OPC UA server |
getNodeAttributes
(opcua) | Read server node attributes |
getAllChildren
(opcua) | Recursively retrieve all children of node |
opc.ua.ServerInfo | OPC UA server information object |
opc.ua.Client | OPC UA client object |
opc.ua.Node | OPC UA node object |
opc.ua.AggregateFnId | OPC UA node aggregate function ID enumeration |
