DO890 3BSC690074R1 Digital Output Module

The core value of the DO890 3BSC690074R1 lies in its integrated analogue output and HART protocol communication capabilities. It can not only convert the controller's digital commands into standard 4-20mA analogue signals to control field devices (such as control valves and frequency converters), but also send and receive HART digital signals through the same pair of lines. This makes it an ideal choice for equipment configuration, calibration, diagnostics, and condition monitoring.

 

The module includes Intrinsic Safety protection components on each channel for connection to process equipment in hazardous areas without the need for additional external devices.

 

Each channel can drive a nominal current of 40 mA into a 300-ohm field load such as an Ex-certified solenoid valve, alarm sounder unit, or indicator lamp. Open and short circuit detection can be configured for each channel. All four channels are galvanically isolated between channels and from the ModuleBus and power supply. Power to the output stages is converted from the 24 V on the power supply connections.

 

TU890 and TU891 Compact MTU can be used with this module, and it enables two-wire connections to the process devices without additional terminals. TU890 for Ex applications and TU891 for non-Ex applications.

 

Project Description
Product Model: DO890 3BSC690074R1
Product Name: I/O Module with Safety Interface
Series: ABB S800 I/O System
Main Functions: Control and monitoring of digital output signals
System Integration: Communicates with the parent controller via industry-standard fieldbus and can be used with various controllers from ABB and other suppliers.
Functions and Applications：
Core Functions: The DO890 module is primarily used for the control and monitoring of digital output signals. It provides multiple digital output channels and can be integrated with PLCs (Programmable Logic Controllers), DCSs (Distributed Control Systems), or other control systems to control field devices such as valves, relays, and indicator lights.

Application Scenarios: This module is designed for industrial environments and is widely used in water treatment, petrochemicals, manufacturing, and other fields.

System Characteristics：
Modular Design: As part of the ABB S800 I/O system, the DO890 is a comprehensive, distributed, and modular process I/O module. This design allows for online reconfiguration and redundancy options, helping to extend uptime.

Compatibility and connectivity: Thanks to its diverse interfaces, it can work with a variety of process controllers from ABB and other suppliers. The compact design of the S800 I/O system (for example, the S800L module is only 59mm deep) also facilitates installation in control cabinets.