Procedure
Proceed as follows to show accessible nodes:
1. Select "MENU SELECT" to open the menu.
2. In the horizontal softkey menu, choose "Diagnostics > Bus TCP/IP."
3. In the vertical softkey menu, choose "TCP/IP > Diagnostics Network > Accessible nodes."
The "Accessible nodes" screen opens showing all nodes that use the SNMP or DCP
protocol.
Further information
You will find Information about showing accessible nodes in SINUMERIK Operate in the
SINUMERIK 840D sl SINUMERIK Operate (IM9)
Commissioning Manual, Section
Service and
diagnostics
.
7.6.4 Remote access to the PCU for operation and maintenance
You can connect via remote access to devices which have an active VNC server, e.g. PCU 50.5
or NCU.
● The remote access to the Siemens PC system from a PG/PC in the system network
(Page 141) is activated via the factory setting. You can optionally define a password for
this:
If you want to access the PC system via the company network instead or in addition, you
must adapt the firewall settings (Page 73) and define a password.
Note
Access to the PC system in the company network requires a secure password
A password is required to access the PC system via remote access in the company network.
The password is not yet defined in the factory settings. If the NCU is to be accessed in the
company network, you must specify a password:
● With the factory settings, a system (e.g. PCU 50.5) can only be monitored via an external
VNC Viewer.
To operate the system from another station, the system in question must grant permission.
You make the necessary settings in the tcu.ini in section [VNCViewer].
Defining the password
To define passwords for remote access on the PC system, call the prompt and enter the
"sc_vncpwd" command.
Com‐
mand
Parameter Value
sc_vncp
wd
set companynetwork|systemnetwork [password]
reset companynetwork|systemnetwork
Authorization level: None
Service and diagnostics
7.6 Remote access
PCU Base Software (IM10)
166 Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
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