REMOTE-CONTROLLING TECHNICAL PLANT
A control system for a technical plant includes control units at the plant to control, maintain and/or monitor the technical plant as well as a management system outside the plant to remote-control, remotely maintain, and/or remotely monitor the technical plant. The control system further includes a data link between the management system and the control units, the control units being controllable and configurable by having the management system remotely access them.
1 - 8 . (canceled)
9 . A control system for a technical plant, comprising:
a management system external to the plant, at least one of remotely controlling, remotely maintaining and remotely monitoring the technical plant;
control units in the technical plant at least one of controlling, maintaining and monitoring the technical plant, the control units being controlled and configured by remote access by the management system; and
a data link connecting the management system and the control units and routed through a first demilitarized zone.
10 . The control system as claimed in claim 9 , wherein at least one second demilitarized zone exists which is redundant relative to the first demilitarized zone and via which the data link can be routed between the management system and the control units.
11 . The control system as claimed in claim 10 , wherein the management system switches at least one of the control units on and off.
12 . The control system as claimed in claim 10 , wherein the management system at least one of installs, un-installs and updates firmware or system software or application software of at least one of the control units.
13 . A technical plant with a control system, comprising:
a management system external to the plant, at least one of remotely controlling, remotely maintaining and remotely monitoring the technical plant;
control units at least one of controlling, maintaining and monitoring the technical plant, the control units being controlled and configured by remote access by the management system;
a data link connecting the management system and the control units and routed through a first demilitarized zone; and
at least one of an actuator actuated by one of the control units and a sensor read by one of the control units.
14 . The technical plant as claimed in claim 13 , wherein the technical plant is a compensation plant reducing electrical reactive power.
15 . The technical plant as claimed in claim 13 , wherein at least one second demilitarized zone exists which is redundant relative to the first demilitarized zone and, via which the data link can be routed between the management system and the control units.
16 . The technical plant as claimed in claim 15 , wherein the management system switches at least one of the control units on and off.
17 . The technical plant as claimed in claim 15 , wherein the management system at least one of installs, un-installs and updates firmware or system software or application software of at least one of the control units.
18 . A method for controlling a technical plant having control units performing at least one of control, maintenance and monitoring, the control units connected to a plant-external management system via a data link, comprising:
at least one of remotely controlling, remotely maintaining and remotely monitoring the technical plant by the management system; and
controlling and configuring the control units remotely by the management system via the data link which is routed via a first demilitarized zone between the management system and the control units.
19 . A method as claimed in claim 18 , further comprising routing the data link via a second demilitarized zone which is redundant relative to the first demilitarized zone, when the first demilitarized zone fails.