Mynul Boss
Member
I want a such type of TIMER in Gx Developer which remain its running time when power failure occur, when power came the timer start from that stop time.
I don't know which of the FX series PLC's you have but here is a screen shot of the manual for the FX3U and FX3G PLC's.
This is from the programming manual so you will need to use T246-T249 if you want a 1ms timer, and T250-T255 if you want a 100ms timer.
Also, a link to the manual:
http://www.meau.com/functions/dms/getfile.asp?ID=010000000000000001000000211602000
Hope this helps,
Dave
That is not possible with internal PLC timers, unless you also keep your PLC active during a power failure. You can do that by adding a small UPS (uninterruptible power supply with batteries) to power the PLC.That means the timers are ON if there is no power supply.
Retentive Timer T250 would be the best one to use - 100 mSec or 0.1 seconds time base (10 counts/second). But for 3 hours, you would need a count of 10 counts/sec x 60 sec/min x 60 min/hour x 3 hours = 108000.
If the T250 does not have that range, you would need to use two timers in series, or a timer and a counter, or a timer and a memory storage register where you add the timer value to a total each time the timer reaches its setting.
Actually I want To operate 4pumps(Suppose pumps are P1, P2, P3 & P4) one by one continuously each one run for 6 hours. If Switch X001 is push then Pump P1 is running. Let, After 2 hours 20 mins later power is gone. Then when power will come again and X001 will push again the pump P1 runs again for 3 hours and 40 mins, then pump P2 run for 6 hours then P3, P4 and P1, P2... continuously.Maybe I could if you could provide a detailed description of exactly what you want, including Fan Output address.
Step 1:
Step 2:
Step 3:
....
Step X
End
Okay, I will work on it. I only have the free version of GX Developer and it does not have the standard Timers or Counters. I will use instead LogixPro but use your Timer Addresses as descriptions.