Lenze PC-based automation - Manual (Page 47)

DMS 1.3 EN - 02/2011
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47
Control technology| System manual
Remote maintenance and diagnostics
7 Remote maintenance and diagnostics
In the PC technology, there are various standard mechanisms for remote connections bet-
ween the nodes.
 The standard mechanisms
– are based on the Ethernet bus system or the protocols used for Ethernet.
– can be used between Engineering/remote maintenance PC and IPC.
It is irrelevant whether a local connection or a remote connection exists between Enginee-
ring/remote maintenance PC and IPC.
 All access mechanisms described in the following can be used
– with direct coupling between the PCs within a local network,
– with a remote connection.
To establish a remote connection, a router is required. A router can be a separate device or
the IPC itself. A router establishes a remote connection between two network segments.
Typically, routers are used for the following connection types:
 Analog phone (modem),
 ISDN,
 DSL.
The client/server connection between the Engineering PC and Industrial PC is characteris-
tical for a remote maintenance.
A server runs on the device to be accessed from afar. The server waits for a client to give a
signal from afar and want to access the PC. Depending on the action you want to carry out
from afar, different server types are available.
When a remote connection has been established once, you can work with the same pro-
grams that are used for the local connection via Ethernet, as for example L-force »Engi-
neer« or web server. Moreover, programs exist which are especially suitable for accessing
parts of the IPC. You can even redirect the complete screen content of the IPC so that you
can remote control it. The different programs available are described briefly in the follo-
wing.