From Rockwell to Siemens Rung HELP
- Thread starter marvis
- Start date
GaryS
Member
it looks like a flasher to ,5 sec off and1 sec on
Hello Marvis, it is not difficult actually.
TON = S_EVERZ, write S5T#500MS in PRESET TIMER INPUT, this auto recognize the basetime.
ONS = |P| Edge P (Rising edge)
Press F1 on timer and you see a good explanation about terminal Q and "Timer Name" Mark.
Good Luck.
TON = S_EVERZ, write S5T#500MS in PRESET TIMER INPUT, this auto recognize the basetime.
ONS = |P| Edge P (Rising edge)
Press F1 on timer and you see a good explanation about terminal Q and "Timer Name" Mark.
Good Luck.
The TOF timer DN bit Goes high when the logic to start the timer goes high and turns off when the timer equals the pre-set
The top rung: If A is true and B is false it starts the TON timer, the EN bit is OR(ed) around A so if A goes false the timer is Latched in or the timer will reset.
The TOF timer is initiated by the TON timer , The TOF.DN bit goes high for the time in the accumulator, the NOT TOF.DN in top rung just releases the latch (TOF timer is initiated by a pulse so the DN bit is set high until the timer.ACC value = the pre set).
(assuming A is already off).
The top rung: If A is true and B is false it starts the TON timer, the EN bit is OR(ed) around A so if A goes false the timer is Latched in or the timer will reset.
The TOF timer is initiated by the TON timer , The TOF.DN bit goes high for the time in the accumulator, the NOT TOF.DN in top rung just releases the latch (TOF timer is initiated by a pulse so the DN bit is set high until the timer.ACC value = the pre set).
(assuming A is already off).
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I don't believe the Siemens timer has an EN bit (can't remember) but you could create a latch with a bit it's the same thing.
See pic, I do not have S7 on this pc but this is sort of what it would look like
Note: The latch will not drop out unless A goes false so the pulse of 0.5 sec will only trigger once until A goes false again.
Forgot to add, the contact with the up arrow is the equivalent of the Siemens one shot or pulse instruction so similar to RW.
See pic, I do not have S7 on this pc but this is sort of what it would look like
Note: The latch will not drop out unless A goes false so the pulse of 0.5 sec will only trigger once until A goes false again.
Forgot to add, the contact with the up arrow is the equivalent of the Siemens one shot or pulse instruction so similar to RW.
Last edited:
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