Faceplate Element List of Devices and Phases PG2 not working
We have a system using PC Device Library where a problem has occured with the "Faceplate Element List of Devices and Phases PG2" aspect. The system has been in operation for over 12 months, the problem occured for the first time yesterday.
· The problem affects the "Faceplate Element List of Equipments PG2" Aspect which is part of the PC Device Library
· The problem is that the list of Equipment Modules is blank. The list of Phases appears correctly.
· The list of equipment modules can be made to appear by changing anything that affects the configuration of the aspect, for example – adjusting the PC Device Lib Config settings, changing User Security privileges, Logging Over. This is a temporary fix. Whenever a new aspect is viewed, the problem occurs again. Closing and opening any display containing this element causes the problem to re occur. The same is true for any faceplate containing this element.
· If we adjust the PC Device Lib Config settings, Every workstation that is showing any Device List aspect at that time is immediately refreshed and the list of devices appears.
· Every workstation and server is affected
· The “Faceplate Element List of Devices PG2” , “Faceplate Element List of Prompts PG2” and “Faceplate Element List of Timers PG2” aspect are not affected and are working correctly.
· The “ListConf” Aspect which hold the configuration data for these aspects is working correctly and contains the object ID’s for the Equipment Modules. It updates whenever a user selects one of these aspects.
We cannot find any diagnostic error messages.
We finally received an answer from L4 support ....
The element depends on the "Common Alarm List Configuration" (Library Structure -> Alarm & Event List Configurations -> Common Alarm & Event List Configurations -> Common Alarm List Configuration )
If this aspect is changed in any way, the PCDL aspects can (and did) break.
(To find that elements are programmed with this kind of undocumented dependancy is extremely disappointing. This is an absolutely awfull design error. I'm shocked and disappointed)