Siemens SINUMERIK 840D sl Function Manual page 220

Several Operator Panels on Several NCUs, Distributed Systems (B3)
2.15 Examples
Step 1a):
NETNAMES.INI configuration files
In this example, separate entries are input for the operator panels in NETNAMES.INI files.
Operator panel 1
Entries for HMI Advanced/PCU50:
[own]
owner = MMC_1
; Connection entry
[conn MMC_1]
conn_1 = NCU_1
conn_2 = NCU_2
EXTCALL_conns = conn_1, conn_2
; Network parameters
[param network]
bus= opi
; HMI descriptions
[param MMC_1]
mmc_type = 0x40
mmc_bustyp = OPI
mmc_address = 1
mstt_address = 6
name = MMC_Serv
start_mode = ONLINE
; NCU components descriptive entry
[param NCU_1]
type = NCU_573
nck_address = 22
plc_address = 22
name = NCU1
[param NCU_2]
type = NCU_573
nck_address = 23
plc_address = 23
name = NCU2
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Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions