Remote desktop technology enables a remote client to logon the operation console through a network. Thus a user can monitor and operate the console (desktop) on his PC in the distant place.

In order to check the operation situation of a plant in an office, the operation screen of HIS in the control room can be displayed on a personal computer in the office. Moreover, operation can also be performed on the PC. On the contrary, the management data in the office PC can also be accessed from the HIS in the control room.

In addition to access the remote desktop via the company internal LAN (Intranet), Internet can also be routed for the access. For example, when a trouble occurs in a plant of a remote business area, the situation of a plant can be checked through the remote desktop in the head office and the counter solution can be made immediately. Moreover, a small-scale reengineering can be preformed remotely through the network without sending an engineer to the spot. Furthermore, with the remote desktop capability, the operation and monitoring from a hand terminal though wireless LAN becomes possible.