1.4.1.3
Thin Client Unit (TCU)
TCU overview
The Thin Client Unit (TCU) for the distributed configuration permits spatial separation of the
SINUMERIK operator panel front (OP/TP) and the SINUMERIK PCU or NCU. On the
SINUMERIK solution line, the TCU is used to display the user interface of the PCU 50 or the
NCU.
It is possible to connect one TCU to several PCUs/NCUs. All TCUs and PCUs/NCUs that are
connected to one another via a switch form the "system network". The user interface of a PCU/
NCU is copied to several OPs with one TCU each. In other words, all of the TCUs display the
same screen. Operator actions can only be performed on one TCU at a time. This TCU then
has user authorization. The PCU can also have its own OP connected directly to it.
The following diagram shows a configuration example for a distributed topology:
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3&8
7&8
+7
7&8
7&8
0&3
The mobile SINUMERIK HT 8 handheld terminal works on the thin client principle and
combines the functions of an operator panel with a machine control panel.
The configuration and cabling of the whole plant system based on a permissible configuration
is described in the chapter 'Network configurations".
Supplementary conditions
For operation of a TCU:
● In the system network, the number of active TCUs is limited:
– a maximum of 2 TCUs: NCU 710.3 PN
– a maximum of 4 TCUs: NCU 720.3 PN or NCU 730.3 PN
– a maximum of 4 TCUs: PCU
Any number of TCUs can be operated in the system network.
● CompactFlash Cards cannot be used on the TCU.
● A 16 bit or 32 bit depth of color setting may be selected.
● If a PC keyboard is connected to the TCU, it is not possible to ensure that all special keys,
e.g., multi-media keys, will be transferred to the software of the NCU / PCU.
General information and networking
1.4 Networking
Operator panel front: OP 010
Manual, 07/2018, A5E36371538B
39
