Siemens SINUMERIK 840D sl Function Manual page 95

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
Features
The operating characteristics are as follows when several NCUs are linked to one operator
panel:
● NCU operation:
● HMI Embedded:
● HMI Advanced:
OEM solution
As an OEM solution, a PCU with HMI Advanced can be connected via an OPI to up to three
NCUs as a program and alarm server (m=1, n=3).
A PG with a commissioning tool can also be connected.
Figure 2-6
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
The user must select the NCU to be operated by means of a softkey.
The operator display in the "Connection" operating area displays the name of the
connection and of the NCU to which the operator panel is currently linked.
– No application should be active on the connection which is interrupted by the
changeover to another NCU (Example: data backup via V24). System message "V24
active" is output if an attempt is made to switch over the link when an application is
active.
– The HMI is in the default Start operating area for the new connection (as after HMI
restart).
When a link to another NCU is set up, the last operating area selected on the previous
NCU is immediately available for the new NCU.
Example configuration for OEM solution
2.1 Brief description
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