The Helmholz GmbH counter module detects the edges of 24 V signals as pulses and the impulses can be counted or converted into a frequency, rotational speed, or period also the counter module features an additional 24 V input and a 24 V output for a direct response to start pulses and to quick system state changes.

Limits for counter and measured readings
Refresh rate or averaging time for measuring mode
8 bytes of input data