Introduction
The ABB DP840 3BSE028926R1 Pulse Input Module is a high-performance dual-channel module designed for the S800 I/O system, enabling precise pulse counting and frequency measurement in demanding industrial automation environments. Its advanced architecture supports high-speed input signals from sensors and encoders, providing reliable data for process control, motion monitoring, and equipment diagnostics.
Technical Specifications & Physical Details
| Specification | Details |
|---|---|
| Manufacturer | ABB |
| Model Number | DP840 (3BSE028926R1) |
| Module Type | Dual-Channel Pulse Input / Counter |
| I/O System | S800 I/O Series |
| Number of Channels | 2 independent channels |
| Supported Signal Levels | RS422, +5 V, +12 V, +24 V, 13 mA transducers |
| Pulse Frequency Range | 0.25 Hz – 2 MHz |
| Counter Type | Bidirectional 29-bit counters |
| Isolation | Channel-to-channel and to common |
| Signal Specification | 24 V DC nominal (12–32 V DC) |
| Maximum Field Cable Length | ~200 m |
| Power Dissipation | ~3 W |
| Operating Environment | Industrial rated |
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale



