Learn more about OPC Toolbox

Function Reference

Alphabetical List

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Object Creation and Configuration Create and configure the objects that provide access to OPC servers Server Exploration Explore server name space, tag properties, and server configuration information Data Access Read data from OPC server synchronously or asynchronously, or through server-initiated events; write data to OPC server synchronously or asynchronously OPC Data Visualization Visualize live OPC data Logging and Buffering Log data provided by OPC data access servers to disk and/or memory; and read logs Simulink Support Create Simulink blocks from MATLAB group objects Utilities Manage OPC Toolbox objects and connections to OPC servers; get help on using OPC Toolbox software

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Object Creation and Configuration

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
connect	Connect opcda object to server
copyobj	Make copy of OPC Toolbox object
delete	Remove OPC Toolbox objects from memory
disconnect	Disconnect opcda object from server
disp	Summary of information for OPC Toolbox objects
get	OPC Toolbox object properties
isvalid	True for undeleted OPC Toolbox objects
makepublic	Convert private group into public group
opcda	Construct OPC data access object
removepublicgroup	Remove public group from server
set	Configure or display OPC Toolbox object properties

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Server Exploration

flatnamespace	Flatten hierarchical OPC name space
getnamespace	OPC server name space
opcserverinfo	Version, server, and status information
serveritemprops	Property information for items in OPC server name space
serveritems	Query server or name space for fully qualified item IDs

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Data Access

cancelasync	Cancel asynchronous read and write operations
read	Read data synchronously from OPC groups or items
readasync	Read data asynchronously from group or items
refresh	Read all active items in group
write	Write values to group or items
writeasync	Asynchronously write values to group or items

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OPC Data Visualization

trend

Display graphical trend of OPC data for group

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Logging and Buffering

flushdata	Remove all logged data records associated with dagroup object
getdata	Logged records from OPC Toolbox software engine to MATLAB workspace
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
peekdata	Preview most recently acquired data
start	Start a logging task
stop	Stop a logging task
wait	Suspend MATLAB execution until object stops logging

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Simulink Support

genslread	Generate Simulink OPC Read block from MATLAB group object
genslwrite	Generate Simulink OPC Write block from MATLAB group object

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Utilities

cleareventlog	Clear event log, discarding all events
load	Load OPC Toolbox objects from MAT-file
obj2mfile	Convert OPC Toolbox object to MATLAB code
opccallback	Event information for OPC Toolbox callbacks
opcfind	Find OPC Toolbox objects with specific properties
opchelp	Help for OPC Toolbox software function or property
opcqid	Construct quality ID from item's quality string
opcqparts	Extract quality parts from OPC quality ID
opcqstr	Convert OPC quality ID into readable string
opcregister	Install and register OPC Foundation Core Components
opcreset	Disconnect and delete all OPC Toolbox objects
opcsupport	Run OPC Toolbox software troubleshooting utility
opctool	Open OPC Tool GUI
openosf	Open OPC Tool GUI session file
propinfo	Property information for OPC Toolbox objects
save	Save OPC Toolbox objects to MAT-file
showopcevents	Event log summary for OPC Toolbox software events

Using the OPC Client Manager

Functions — Alphabetical List

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