OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
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Function Manual, 05/2021, A5E03735815-AJ
Node classes
OPC UA servers provide information in the form of nodes. A node can be, for example, an
object, a tag, a method or a property.
The example below shows the address space of the OPC UA server of an S7-1500 CPU (extract
from the OPC UA client "UaExpert" from Unified Automation).
Figure 9-7
Example of the address space of the OPC UA server of an S7-1500 CPU
In the figure above, the "MyValue" tag is selected (highlighted in gray).
This tag is located below the "Memory" node, which has the node class "Object".
"Memory" is below the "PLC_1" node (also an Object).
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