Re: MKV Timers and Counters
May 26, 2007 12:39 am, by CTTech
Consult GEH-5980 Mark V Maintenance Manual. The counters, timers, and accumulators are set up in a file named TOTT_Q.SRC. An example follows:
;-----------------------------------------------------------------------------
; Specify 1,2,3, or 4.
; types 1 (=counter)
; 2 (=timer)
; 3 (=analog accumulator)
; 4 (=accumulated logic) ;adds a constant value to an accumulator when
; pickup of a trigger logic is detected.
; Must keep signals in order.
;
; Signal Trigger level for
;Type Name analog type (opt)
;---- ------------ -----------------
;
1 L30CMIS
1 L30CTS
1 L30CFLS
1 L30CFS
1 L30CES
1 LFALSE
1 LFALSE
1 LFALSE
1 LFALSE
1 LFALSE
1 LFALSE
2 L30FT_T
2 L30FT_P
2 L30FT_G
2 L30FT_L
2 L30FT_L2
2 L30FT_G2
2 L30FT_PR
2 L30FT_LL
2 L30FT_S
2 L30FT_PM
2 L30FT_EL
3 DWATT_TOT 384 ;MWATT HOURS
3 FQG 128 ;GAS FUEL FLOW
The values for the timers, etc. are stored in a file on the Mark V named TOTD.
We routinely upload these files from the Mark V and back them up so we can restore the files if neccesary.
To upload the files (I will use T1 as an example) one has to use the eeprom downloader program. EEPROM UP T1 ALL. Notice I used the ALL at the end instead of user.
If you have been backing these files up routinely things get easier. If you have not it is not that much harder. Copy your empty or backup TOTD file to a different location on your hard drive. Perform the EEPROM UP T1 ALL. Now backup the files that were just uploaded from the Mark V. Replace the TOTD file with your empty or backup TOTD file. Now do a EEPROM DOWN T1 ALL. All the timers, etc. will now reflect your empty or backup.
Now for some cleanup or adjustment as neccesary. Refer to the TOTT.SRC file. If you force the counter in the above example L30CMIS; you will increment the manual start timer by one. Force it one hundred times and you will have 100 manual starts. Remember this is an example, your TOTT_Q.SRC file might be different.
Timers are a little different. The only way I know to do it is to force the logic associated with it and let it run until the desired hours has accumulated.
Accumulators can be changed by changing scaling data. For instance, a frame 7EA can only produce about 70 MW. But the analog value is scaled to 512. You can change the scale even higher if you wish. Tell the Mark V you are making 512 MW or more, you accumulator will soon be at the value you wish.
And now for the easy way. Send you TOTD file to GE and for a fee they will set it to anything you ask.
Hope this helps.
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