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KB80463
PAC Display Runtime does not run as expected when approaching December 31st
Revision:  2.0
Published:  12/29/2008
Applies To
PAC Display Professional
PAC Display Basic
ioDisplay Professional
ioDisplay Basic
FactoryFloor Software - OptoDisplay
Versions
Problem was discovered in version:  
R8.2e PAC Display
R7.1j ioDisplay
R4.1a OptoDisplay

Problem is fixed in version:  
R8.2f PAC Display
B8.0s PAC Display
B7.1w ioDisplay
B4.1f OptoDisplay

SYMPTOMS

On PAC Display Runtime startup, the Event Viewer appears blank or grayed-out, and Runtime appears to hang.

CAUSE

If the Synchronize Control Engine Clock to PC Clock option is set for Auto Synchronization from Configurator (Configure→Runtime, Control Engine), the control engine continually re-synchronizes the time every 5 seconds once the next synchronization time includes, or extends past December 31.

For example, if the automatic synchronization time is set for every 7 days and synchronization occurs on December 27, continuous synchronization begins because December 31 is within the 7 day time frame of the next synchronization date.

WORKAROUND

There are two ways to workaround this problem. The first is to disable the Enable Auto Synchronization option in PAC Display Configurator (Configure→Runtime, Control Engine) by unchecking the option box. The second workaround is to set the PC clock time to a date so that January 1 is not within the number of days specified by the auto synchronization feature. The default, as shown above, is seven days.

RESOLUTION

Opto 22 has resolved this issue in the current PAC Display release. Contact Opto 22 Product Support if you need the fix for ioDisplay Runtime (using R7.1 or prior firmware in Ultimate I/O controllers), OptoDisplay Runtime, or for PAC Display R8.0 applications that cannot be upgraded to a higher revision (using R7.2 firmware in Ultimate I/O controllers).

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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