No unfortunatley we can't set up the meter to output pulses. This is why we are trying to generate pulses with the PLC (S7-1200). I use the system clock of 10Hz to calculate the avarage value within 1 sec. So that the value is as close as possible. The flow rate is mostly steady and does not change that much.
I was thinking that if I were to use a faster clock, then the error would be less, no?