Improvement of control systems' connection mode for units No.1 and 2 in Pucheng Power Generation Co Ltd had been carried out

some measures

such as creating specific connection channel

using virtual web and dividing web into sections

isolating real-time system and local netwerk by using fire-proofing wall

setting up monitoring programme of websites on the computer

establishing perfect guarding mechanism against computers' virus

decreasing or eliminating remote operations etc.

having been taken

ensuring to prevent the real-time system of units from attacks by sinister guests. After practical application

the safety of units has been greatly enhanced.