ABB DI840 3BSE020836R1 Digital Input Module in stock

ABB DI840 3BSE020836R1 is a digital input module belonging to ABB S800 I/O series for AC800M DCS system. It is used to receive digital on/off signals from field switches, limit sensors and relay contacts.

This module features high channel density and signal isolation to suppress field interference. Widely used in power, chemical and pulp & paper DCS system maintenance, spare replacement and automation system renovation projects.

Data Parameters

• 1. Brand: ABB.

• 2. Model: DI840, Part No:3BSE020836R1.

• 3. Product Type: Digital Input Module.

• 4. Application: AC800M DCS S800 I/O system.

• 5. Feature: Galvanically isolated digital signal acquisition.

• 6. Characteristic: Anti-interference design for harsh industrial site.

• 7. Signal Type: Digital discrete input signal.

• 8. Package: S800 rack mount module.

• 9. Mounting: Installed inside S800 I/O cabinet.

• 10. Operating Temperature: 0℃ ~ +60℃.

Core Functions

• 1. Collect discrete digital signals from field limit switches, pressure switches and relay status contacts.

• 2. Provide galvanic isolation between field side and control side to block surge and noise interference.

• 3. Transmit digital status data to DCS controller through S800 fieldbus communication.

• 4. Detect channel fault and wire break, send fault diagnostic information to main controller.

• 5. Support hot swap under redundant I/O rack configuration for online maintenance.

Application Scenarios

• 1. Power plant ABB AC800M DCS system spare replacement.

• 2. Petrochemical plant S800 remote I/O cabinet maintenance project.

• 3. Pulp and paper factory automation control system upgrade.

• 4. Heavy industry DCS spare parts inventory backup.

• 5. Old ABB S800 digital input channel renewal and retrofit.

FAQ

• 1. Q: What is ABB DI840 3BSE020836R1?
      A: It is ABB S800 series digital input module, used to collect field on/off discrete signals for AC800M DCS control system.

• 2. Q: What is the main advantage of this module?
      A: It adopts galvanic isolation design, effectively protecting DCS system from field surge and electrical interference.

• 3. Q: Can it be hot swapped?
      A: Hot swap is supported when installed in redundant S800 rack; non-redundant rack needs power off before replacement.