PLCforum.uz.ua

Hi dear friends.
since more than 1 month ago a serious problem occured in our Pcs7 system.
we have PCS7 v6.0 with one ES two redandunt servers and six clients.

when we want to download CFC charts to PLcs( from ES) an error message appeares on screen as follow:

error message wrote:Download(1739:321)
Error during S7 access:
Internal error: Unexpected result in a STEP 7 function {DB1000 0[6]}
Invalid definition for service ID 'TBI' - Error
description for 65535 not found.

I did every things same as: installing new PCS7 program and retriving fresh archieves. but problem didnt solve.
this is a serious problem in our systems. please help me. thank you for your favour.

YOU HAVE VIRUS.

I know, this is virus.but any antiviruses cant find it.
what i must do to solve this problem?

Hi
No antivirus can find this virus.First disconet ES and other computers from your network and then format C drive and instal windows and pcs7 or if you have image restore it.do this steps for other computers.finally conect all of computers to network and remember that you must retrive a old good backup on ES.

I solved this problem. thank you all.