TOF test
Original "TOF 2.3V.ld"
We can see Yled1 - output of the T2 TOF timer.
Modified 1 "TOF 2.3V modified 1.ld"
We can see Y1 - input of the T2 TOF timer. But it wrong.
Y1 was reset, but TOF can see input low level in next PLC cycle, after 10 ms.
Modified 2 "TOF 2.3V modified 2.ld"
Real Y1 - input of the T2 TOF timer.
So, v2.3 TOF shorter than those specified in the LD file at one PLC cycle time.