Switchover Of Connection To Another Ncu - Siemens SINUMERIK 840D sl Function Manual

*) If bus = mpi, the following applies: Since the associated NCU always occupies the next-
higher address than the PLC, the PLC address must not be 31. Address 31 can, for
example, be assigned to a PCU.
Vocabulary words:
param: Introduces parameter for NCU component
name: User-defined name for the NCU to be described
type: NCU type
nck_address: Bus address of NCU
plc_address: Bus address of PLC
Note
If the bus node addresses on the MPI bus are configured in conformance with SIMATIC, the
configuring engineer can read out the assigned addresses using a SIMATIC programming
device and use them to create the NETNAMES.INI file.
Defaults
The following defaults are applied if no NETNAMES.INI configuration file has been copied
into the HMI Embedded/OP030 or if the file cannot be interpreted:
● The bus type used is detected automatically.
● PCU has address 1.
● OP030 has address 10.
● NCU and PLC both have address 13 for an OPI bus.
● NCU has address 3 and PLC address 2 for an MPI bus.
If the network configuration actually corresponds to these default settings, then it is not
necessary to explicitly generate and load the NETNAMES.INI file. If a special file is created,
however, it must correspond exactly to the network configuration.
2.3.2

Switchover of connection to another NCU

Note
The channel menu function is an option and must be configured in the NETNAMES.INI file.
You can change to the channel menu in all operating areas by activating the channel
switchover key. The only change is to the horizontal and vertical softkeys.
Use the horizontal softkeys to select a channel group (max. 24), 8 links to channels on
different NCUs can be set up in each channel group.
The "Channel menu" display shows all the current communication connections and the
associated symbol names.
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Several Operator Panels on Several NCUs, Distributed Systems (B3)
2.3 Several operator panel fronts and NCUs, standard functionality
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