52 HEIDENHAIN Technical Manual iTNC 530 HSCI
If Enable Concurrency VNC Focus is selected, the dialog window shown below
appears. This dialog makes it possible to refuse that the focus be given to the
requesting client. If this is not done, the focus will be given to the requesting
client after the specified time period has elapsed.
The PLC Modules 9286, 9287 and 9288 enable you to use the PLC program to
control the focus assignment.
For multiple clients or operating units, the focus assignment procedure
depends on the design and the operating situation of the machine. The task of
realization of and the responsibility for the focus assignment therefore lies
with the machine tool builder.
All external VNC clients (non-HEIDENHAIN devices) have read-only rights to
display the screen contents, and not write rights.