System Time Advanced alarm

[Squire66]

Background:
I am running Lookout 6.02, which is connected to a Modicon 984 plc. They are linked by a modbus connection.

Problem:
Randomly, I receive an error in Lookout " System time advanced 03:34:43.532 from 5/10/07 15:42:57 to 05/10/07 07:05:06." During this time Lookout is not recording any information (trend screens are blank). At the same time there is a "No communication response from Modbus secondary" alarm. Does anyone know what is causing the problem?

[Ryan.S]

Do you programmatically change the Lookout system time in your process?

Do you set any Time Servers for your process?

Perhaps it's also because of the Daylight Saving Time.

[Squire66]

See my answers below.

Do you programmatically change the Lookout system time in your process? (No)

Do you set any Time Servers for your process? (No)

Perhaps it's also because of the Daylight Saving Time. (It is on but the clock does not automatically update. Plus this should only cause a problem twice a year, not 5 times a week).