Notes On Configuration Limits When Using Server Interfaces - Siemens SIMATIC S7-1500 Function Manual

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
9.3.4.8

Notes on configuration limits when using server interfaces

When you use OPC UA server interfaces, you must comply with limits for the following
objects in line with the S7-1500 CPU performance class:
● Number of server interfaces
● Number of OPC UA nodes
● Load object data volume
● If you have implemented methods: Number of server methods or server method
instances
Configuration limits for OPC UA server interfaces and methods
The table below sets out the configuration limits for S7-1500 CPUs; these must also be
taken into account when you compile and load a configuration (up-to-date technical
specifications of the CPUs can be found on the Internet
(https://support.industry.siemens.com/cs/ww/en/ps/td)).
A violation of configuration limits results in an error message.
Table 9- 4 Configuration limits for OPC UA server interfaces
Technical specification value
Use of imported companion specifications (information models)
Maximum number of OPC UA server
interfaces:
"Companion specification" type
•
"Reference namespace" type
•
"Server interface" type
•
Maximum number of OPC UA
•
nodes in user-defined server in-
terfaces
Maximum size of loadable OPC
•
UA server interfaces
Provision of methods
Maximum number of usable server
methods or max. number of server
method instances (instructions
OPC_UA_ServerMethodPre,
OPC_UA_ServerMethodPost)
226
CPU 1510SP (F) CPU 1505 (S/SP/SP F/SP T/SP TF)
CPU 1511 (C/F/T/TF) CPU 1515 (F/T/TF)
CPU 1512C CPU 1515 SP PC (F/T/TF)
CPU 1512SP (F) CPU 1516 (F/T/TF)
CPU 1513 (F)
10 10
20 20
10 10
1000 5000
1024 KB 5120 KB
20 50
CPU 1507S (F)
CPU 1517 (F/T/TF)
CPU 1518 (F)
10
20
10
30000
15360 KB
100
Function Manual, 11/2019, A5E03735815-AH
Communication