Technical FAQs

1. What is the purpose of the DP820 module?
   It counts and measures pulse and frequency signals from incremental transmitters for process or motion control.

2. How many channels does it support?
   Two independent pulse input channels.

3. What signal types can be connected?
   Interfaces include RS422 and standard industrial levels (+5 V, +12 V, +24 V).

4. What range of pulse frequencies can it handle?
   It supports frequencies from low speeds up to 1.5 MHz.

5. Is isolation provided?
   Yes — channels are individually isolated for reliable operation.

6. What type of counter resolution is used?
   Bidirectional 29-bit counters track count and directional measurement.

7. What is the nominal supply specification?
   Designed for 24 V DC operation within a 12 – 32 V range.

8. Can it measure frequency as well as count pulses?
   Yes — simultaneous pulse count and frequency measurement are supported.

9. How long can field cables be?
   Up to approximately 200 meters with proper shielding.

10. Is this suitable for high-noise environments?
    Yes — individual isolation and industrial design make it suitable for noisy control panels.