ABB DP840 3BSE028926R1 Pulse Counter or Frequency Measurement Module. Redundant or single. 1×8 ch, 20 kHz. Rated isol. 50 V. Use Module Termination Unit TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU844, TU845.
ABB S800 I/O is a comprehensive, distributed and modular process I/O system that communicates with parent controllers and PLCs over industry-standard fieldbus technology and therefore can be used with a wide range of process controllers from ABB and other vendors.