Siemens SINUMERIK 840D sl Function Manual page 76

B3: Distributed systems - 840D sl only
3.1 Brief description
Figure 3-1 Example of a T:1:N network
Quantity structure
The following quantity structure must be observed for an operator control and monitoring
system T:1:N:
T: Thin Client Unit (TCU) or HT8 handheld unit
The graphic information of the PCU 50.x user interface is transferred via the TCU to the
operator panel front (OP) and displayed there. TCU and operator panel front together form an
operator station.
● Maximum number
In principle, any number of operator stations, only limited by the amount of available address
space, can be operated in the system network.
● Online
A maximum of four operator stations per PCU can be online simultaneously.
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IE switch
"SCALANCE xxx "
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions