Siemens SIMATIC S7-1200 Reference Manual page 71

Basic instructions
OPC UA: CP 443-1 OPC UA
✔
Establish connection for a session with an OPC UA server
✔
Fetching namespace index of a namespace URL
Registering node IDs on the connected server and fetching
✔
node handles in the form of a list
Reading out the data from nodes of the connected server
✔
using the list of node handles
Writing the data in nodes of the connected server using the
✔
list of node handles
✔
On the server, enable the node handles of the list used
Terminate connection of a current session with an OPC UA
✔
server
A5E33284667-AA
Extended instructions
Description
Technology
LAD/FBD
UA_Connect
UA_NamespaceGetIndex
UA_NodeGetHandleList
UA_ReadList
UA_WriteList
UA_NodeReleaseHandleList
UA_Disconnect
Communication
STL
SCL
(not S7-1200)
Page 70