THERE IS A GAP OF 5 HRS 30 MIN BETWEEN CONTROLLER TIME AND UTC TIME WHEN VIEW/SET COMMAND IS GIVEN FROM MARK-VI TOOLBOX.

THE LOCAL TIME SET IN THE HMI IS GMT +5.30.

IS THERE ANY PROCEDURE TO CORRECT IT?

 

When did this problem start?

It's impossible to say what the problem may be or how to fix it without more information.

Does the site use NTP (Network Time Protocol) to match HMI and Mark VI time? (There may or may not be a Master Time Signal generator, such as a signal from a satellite through a device that sends out a signal, usually via a coaxial cable, to a time synch card in one or more HMIs. Note that NTP can be used without such a signal, using the BIOS clock of an HMI to send a time signal to the Mark VI.)

There's simply not enough information, and it would seem you are assuming that every Mark VI is "synchronized" to an HMI--which just ain't so. It all depends on how the network was configured during the installation/commissioning.

 

Dear CSA

Thanks for the response. The problem was there right from the day software was downloaded to the panel. The site does not have a Master clock facility so the HMI clock has to be used as the Master to send time to Mark-VI.

The m6b file NTP tab shows Unicast being selected.
What is the correct configuration to be used?
Thanks a lot

 

If I recall correctly, the method for "setting" the Mark VI time from the HMI (usually via Toolbox) varied depending on the version of Toolbox.

What version of Toolbox is being used?

If NTP isn't configured on the HMI, then any setting in Toolbox isn't going to matter. Again, it seems you are assuming that every Mark VI/HMI installation is configured to use time synchronization, and that's just not true.

NTP is the method by which time signals are "broadcast" to the various controllers and HMIs on UDH/PDH networks. You need to look at the relevant GE documentation and understand how NTP and time synchronization works, and is to be configured.

It's also a purchased option, and not included with every installation/control system.