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ABB DP840 3BSE028926R1 Pulse Counter or Frequency Measurement Module

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ABB DP840 3BSE028926R1 Pulse Counter or Frequency Measurement Module

ABB DP840 (3BSE028926R1) is an 8-channel S800 I/O pulse counter & frequency module. Supports NAMUR/12V/24V, 0.5Hz–20kHz, 16-bit counting, redundancy & diagnostics. Ideal for speed/flow monitoring in AC 800M/800xA DCS.

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Model:
DP840 3BSE028926R1
Brand:
ABB

DP840 3BSE028926R1 ABB DP840 3BSE028926R1 DP840 3BSE028926R1 Pulse Counter or Frequency Measurement Module ABB DCS DP840 3BSE028926R1 DCS DP840 3BSE028926R1 PDF

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DP840 3BSE028926R1 Overview

The ABB DP840 (3BSE028926R1) — a pulse input module purpose-built for ABB S800 I/O systems — delivers reliable high-speed pulse signal acquisition and counting for process automation, power generation, oil & gas, and heavy industrial environments. Designed for ABB 800xA, AC800M, and Freelance control platforms, DP840 integrates high-frequency counting, galvanic isolation, and real-time signal diagnostics to ensure stable, interference-free measurement under harsh industrial conditions. DP840 supports DIN rail mounting, hot-swap capability, and native integration with S800 I/O racks and termination units, making DP840 ideal for 24/7 continuous-duty process monitoring and control applications.

DP840 3BSE028926R1 Technical Specifications

Part Number	DP840 3BSE028926R1
Manufacturer	ABB
System Compatibility	S800 I/O, 800xA, AC800M, Freelance
Country of Origin	Switzerland
Product Condition	100% New & Original
Operating Temperature Range	-20°C to +60°C
Lead Time	2-3 business days after payment confirmation
Warranty	1 year
Shipping Carriers	DHL, FedEx, UPS, TNT, EMS
Contact:Cheryl Qi	+86 18150137565

DP840 3BSE028926R1 Advantages

The ABB DP840 (3BSE028926R1) provides accurate and stable pulse signal acquisition for industrial applications.

High-speed pulse counting. DP840 supports input frequencies up to 50 kHz for precise measurement of flow, speed, and position signals.

8-channel isolated design. DP840 ensures independent signal monitoring and strong anti-interference performance in complex industrial environments.

Full galvanic isolation. DP840 eliminates ground loops and electrical interference, protecting the control system and field devices.

Clear LED status indication. DP840 provides real-time channel and module status for fast commissioning and on-site troubleshooting.

Hot-swap capability. DP840 supports live replacement without rack shutdown, maximizing system availability.

Perfect S800 I/O compatibility. DP840 plugs directly into S800 I/O racks and works with standard termination units for plug-and-play installation.

Get the ABB DP840 3BSE028926R1 with fast worldwide delivery — in‑stock units ship within 2‑3 business days of payment confirmation.

• Email: chen@htechplc.com

• WhatsApp / Phone: +86-181-5013-7565

• Shipping carriers: DHL, FedEx, UPS, TNT

Why buy from us:

• 100% new and original ABB parts

• Every product tested before shipment

• Professional anti-static packaging

• One‑year warranty on all units

• Free online quotes and 24/7 technical support

• Competitive pricing with fast global delivery

FAQs

Which systems is ABB DP840 (3BSE028926R1) designed for?

DP840 is a dedicated pulse input module for ABB S800 I/O systems, fully compatible with 800xA, AC800M, and Freelance controllers.
What is the maximum input frequency of DP840?

DP840 supports pulse input frequencies up to 50 kHz for high-speed measurement applications.
Does DP840 provide galvanic isolation?

Yes, DP840 features galvanic field-to-logic isolation to avoid electrical interference and ensure system safety.
What termination units are compatible with DP840?

DP840 works with TU840, TU841, TU842, and TU847 termination units for convenient field wiring.

DP840 3BSE028926R1 Applications

Flow measurement systems. DP840 acquires pulse signals from flow meters for accurate flow rate calculation in water, oil & gas facilities.Speed and position monitoring. DP840 measures rotational speed and linear position from encoders in motors, pumps, and conveyors.Process automation systems. DP840 provides pulse counting for batch control, metering, and production statistics.Power generation plants. DP840 monitors pulse signals from turbine and generator auxiliary systems.Manufacturing and production lines. DP840 supports high-speed counting and monitoring for automated machinery.

DP840 3BSE028926R1 Certifications & Compliance

DP840 (3BSE028926R1) complies with the following international standards:

• CE — EMC and electrical safety compliance

• UL 508 — Industrial control equipment standard

• IEC 61131-2 — Programmable controllers standard

• ABB factory quality certification for S800 I/O systems

All modules supplied are 100% new original ABB parts. Every DP840 is functionally tested before dispatch, packed in professional anti-static packaging, and covered by a one-year warranty from the date of delivery.