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access data on opc ua servers

industrial communication toolbox™ provides an opc ua client to connect to opc ua servers. using the client, you connect to the server, query server status, browse the server namespace, read and write current values, and read historical values from nodes on the server. historical data is retrieved as opc data objects, which allow you to process historical data in preparation for common analysis tasks.

functions

query host for installed opc ua servers
create opc ua client object
set security configuration parameters for opc ua client
connect opc ua client to server
disconnect opc ua client from server
determine if opc ua client object is connected to server
status of opc ua server
find opc ua servers containing specified description
copy opc ua client application certificates to file
create opc ua node objects
namespace of opc ua server associated with client
graphically browse name space and select nodes from opc ua server
read values from nodes on opc ua server
write values to nodes on opc ua server
read historical data from nodes on opc ua server
read historical data from nodes of opc ua server at specific times
read aggregate data from nodes of an opc ua server
find opc ua server nodes by name
find opc ua server nodes by namespace index and identifier
true for empty nodes of opc ua node array
true for variable nodes of opc ua server
true for object nodes of opc ua server
read opc ua server node attributes
recursively retrieve all children of opc ua server node

topics


  • learn about the opc ua standard platform.


  • learn about opc ua components and their interactions.


  • establish secure, authenticated connections between opc ua servers and clients.


  • manage keys for secure connections between opc ua servers and clients.


  • learn about types of opc ua data values.


  • retrieve opc ua historical data as an aggregate of a function.


  • create an opc ua application by retrieving current and historical data.

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