In our plant, trip logs are automatically stored in the shared folder E:\Data_Historian of the HMI.
Mark VI or Mark VIe?
for Mark VI. There are 2 places to archive Trip logs in the Controller. Either using the Dynamic Data Recorder (DDR) or capture buffer blocks.
For the DDR:
- Open up your GT M6b file. Verify there are some DDRs are configured in the controller.
- On the left side, there is a sub menu called "Dynamic Data Recorder". Check to see if it has DDR1, DDR2, DDR3, etc configured within this sub menu. If not, move on to Capture blocks
For the Capture blocks:
- Open up your GT M6B file. This is written in the code. Usually, it is under Functions then a program called "Trip_Log". Within that program, a few 'Capture' blocks should be configured with a bunch of points.
You can then view your DDR or captured blocks using the Trender. Or if you have a historian configured (.thb file), then that will automatically download the trip log files.
For Mark VIe:
- open the GT file in the TCW. Go to the Dynamic Data Recorder tab.
- Make sure DDRs are configured with points
- open up your GT workstation. Go to the 'Recorder' tab. If one is not configured, then this workstation is not configured to automatically DL the DDR.
- Under the recorder tab, it will show you were those files are automatically uploaded from the controller. Usually this is C:\RecorderData.
You can also use TrenderST to view DDR.
>For the MARK VI gas turbine control system how can I get
>the TRIPLOG (TRIP HISTORY) file?
I read that as, "Where do I find the TRIPLOG (TRIP HISTORY) file?" in order to be able to analyze why the turbine tripped?
I believe it requires a properly configured GE Mark VI HMI--one that is configured to automatically store the TripLog file(s) in a defined directory (folder). I believe it's then up to the user to know where that file location is and to use the MS-Windows File Explorer to navigate to that folder (directly) and double-click on the desired file (I think the files are stored with a date/time-specific name) and then Trend Recorder will automatically open the chosen file and display the data and alarm information for analysis.
DDRs are great ways to "augment" the Capture Buffers used for the "standard" TRIPLOG (TripHistory) file. They can also be useful for troubleshooting difficult problems without having to start and leave a Trend Recorder file running for a long period of time, or to configure a Trend to start automatically with a trigger logic signal (which may have to be created in application code sometimes).
There are also usually hourly TRIPLOG LIVE files that are automatically stored in a specified folder (directory) somewhere on a properly configured HMI. They aren't stored indefinitely, though they can be copied to another folder (directory) manually for storage and future review. (I believe TRIPLOG (TripHistory) files are also only stored for a limited time, though they can be saved to another folder (directory) for future reference, also.)
The problem is (as is usual with GE HMIs) the location of these folders (directories) is not always the same. The location seems to change, without any kind of notice or for any particular reason--other than, they (GE) can.
I do recall once seeing a shortcut in the 'Tools & Utilities' Start menu folder for accessing the TRIPLOG file. I don't know it new which one was the newest, or even if it did. All I know was--I was surprised to find it, but couldn't find the time to figure out how it worked. (It's probably some kind of script; GE loves to use scripts and to hide them from normal, prying eyes.)
Anyway, ME42, if you have any insight into how a GE Mark* HMI knows how and where to store TRIPLOG files after a trip it would be a very useful thing to share.