Description
ABB DI651 S600 32-Channel Digital Input Module 3BHT300026R1
Product Overview
DI651 with part number 3BHT300026R1 belongs to ABB S600 I/O series for Advant DCS platforms. This digital input module collects 48V DC discrete signals from field switches and contact devices. It carries 32 input channels split into four optically isolated groups. The unit supports pulse capture and sequence-of-event recording, which helps operators track fast state changes in process loops. It works reliably in power, pulp and petrochemical sites and serves as a key spare for legacy ABB Advant control systems.

Key Features
- Brand: ABB
- Model: DI651, Part No: 3BHT300026R1
- Series: S600 I/O, for Advant Master Process Control System
- Type: Digital Input Module
- Channel count: 32 channels, 48V DC
- Isolation: Opto-isolated in four independent groups
- Special function: Pulse catching and sequence-of-event (SOE) recording
- Built-in LED indicators for each channel status
- Rack slot mounting design
- Strong EMC anti-interference capability for industrial sites
- Net weight: 1.23kg
Application Fields
- ABB Advant DCS distributed control system
- Power plant and substation process monitoring
- Pulp, paper and petrochemical automation control
- Fast signal sequence recording and pulse signal acquisition
- Legacy ABB S600 I/O rack system maintenance and spare replacement



