Siemens SINUMERIK 840D sl Manual page 66

Networking
5.4 Service and diagnostics
Figure 5-12
With the TCU30.3, after selecting the TCU to be replaced, a further dialog to select the
emulation type can be displayed in compatibility mode:
66
TCU menu: Replacement TCU
Operator panel front: OP 012
Manual, 05/2019, A5E36371591B AB