Siemens SINUMERIK 840D sl TCU 30.3 Manual page 64

Networking
5.4 Service and diagnostics
If a static.ini of the TCU to be replaced (as of SW4.5) is found on the server, then the type of
the old TCU is preselected based on the HW ID found there. If this is not the case, the TCU20.2
type is selected.
The following TCU types can be emulated:
● TCU
● TCU 20.2
● TCU 30.2
Note, however, that if an older TCU is to be replaced by a TCU30.3, some interfaces cannot
be used when the HMI version is older than V4.7. The following interfaces are affected:
TCU to be replaced
TCU
TCU20.2
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Interfaces that cannot be used
X211, X212, X213 (because they do not exist in the TCU)
X211, X212 (because they do not exist in the TCU20.2)
TCU 30.3
Manual, 09/2017, A5E40874197