Siemens SIMOCODE pro Function Manual page 320

Tables, data records
3.6 EtherNet/IP data tables
Instance 120: Configuration assembly
Configuring of devices using a "Configuration assembly" is not supported by SIMOCODE.
Devices are parameterized by means of the SIMOCODE ES (TIA Portal) parameterization
software.
Integrating a SIMOCODE device as a "Generic Ethernet module" into the Rockwell
Studio 5000 environment:
For this purpose, the "Configuration assembly" with the instance 120 and the length 0 must
be specified as well.
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SIMOCODE pro - Communication
Function Manual, 11/2018, A5E40508495002A/RS-AC/003