Displacement Mechanism For Tcus - Siemens SINUMERIK 840D sl TCU 30.3 Manual

ExternalTcuIP_1=
You can also set the screen resolution that you want in the tcu.ini file:
[VNCServer]
Resolution = ...
5.2.3

Displacement mechanism for TCUs

Supplementary conditions
The following supplementary conditions apply when operating the TCU:
2 active TCU connected in parallel to NCU 710.3 PN
4 active TCU connected in parallel to NCU 720.3 PN, NCU 730.3 PN
4 active TCU connected in parallel to PCU
To operate a machine with more operating stations then the maximum number the
displacement mechanism ensures that only the permitted number of TCUs are active in
shadowing grouping. The remaining TCUs are switched to a passive mode, which means they
no longer represent a load relative to the resources. Thus the number of TCUs that can be
connected to one HMI application is practically no longer limited, the limitation is the number
of concurrently active TCUs.
Displacement rules
You configure the displacement mechanism in SINUMERIK Operate in the "Commissioning"
operating area → menu forward key → "OPs" softkey for the operator panel in question.
The TCU can assume the following states:
● The TCU is active and has user authorization: This can be identified as the TCU shows the
screen of the operating software and the screen is bright.
● The TCU is active, however, in the monitoring mode (i.e. it presently has no user
authorization): This can be identified as the TCU shows the screen of the operating
software, however, it is darkened in comparison to the TCU with user authorization.
● The TCU is passive: The TCU shows the selection menu of the possible connections
instead of a screen of the operating software, and the softkey for selection of the last active
connection of the TCU is shown in color.
When powering up, the TCU always always attempts to establish the first connection. The
TCUs from a shadowing group establish their specified connection one after the other as long
as the maximum number of permissible active operator units is not exceeded.
If a TCU encounters the situation that this number is already reached in its power up, then it
attempts to obtain a connection via the displacement mechanism. If it can displace a formerly
active operator unit then it takes on the active status itself, otherwise it transitions to passive
status immediately after booting.
TCU 30.3
Manual, 09/2017, A5E40874197
Networking
5.2 Commissioning TCU
41