Creating A Server Interface For Reference Namespace - Siemens SIMATIC ET 200AL System Manual

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Integrity of the OPC UA XML files
OPC UA XML files represent the server address space. These files are, for example, imported
by you in the context of OPC UA Companion specifications as a server interface after
adaptation to the application, loaded with the hardware configuration into the S7-1500 CPU
and tested.
No checking of imported OPC UA XML files
Protect these OPC UA XML files against unauthorized manipulation since STEP 7 does not
check the integrity of these files.
Recommendation
To minimize risks in the case of an extension or adaptation of the server address space, follow
these steps:
1. Protect the project (project navigation: Security settings > Settings).
2. Export the corresponding server interface before the extension or adaptation.
3. Revise this OPC UA XML file.
4. Import the file again as a server interface.
9.3.4.7

Creating a server interface for reference namespace

Companion specifications and referenced namespaces
A series of OPC UA object types (as well as additional definitions) are defined in a companion
specification. These object types are each defined in namespaces so that the names of the
object types (type definitions) are unique.
To use a companion specification in your project, create instances of object types of this
companion specification.
To do this the object definitions must be available in your STEP 7 project. If this is not the
case, you must import the object definitions. To import all definitions of a namespace, create
a server interface of type "Reference namespace" for each namespace in STEP 7.
Note
EUROMAP and the OPC Foundation have established the Joint Working Group "OPC UA
Plastics and Rubber Machinery".
The existing EUROMAP recommendations EUROMAP 77 (data exchange between injection
moulding machines and MES), 82.1 (temperature control devices) und 83 (general
definitions) were published under the neutral umbrella of the OPC Foundation as OPC 40077,
40082-1 and 40083. However, the examples listed below use the previously valid
designations and references.
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Function Manual, 05/2021, A5E03735815-AJ
Communication