0ba0 24RL fast input

Hello

I Have an old LOGO! 6ed1 053-1hb00-0ba0 24RL.

I cannot find the exact datasheet for this model. Can somebody tell me if this model even supports fast inputs?

I'm trying to make an application to synchronize two motors by counting pulses from each motor.

Pulses are from an inductive sensor, about 20 per second.

I've tested the program and can see that not all pulses are counted.