The ABB DI821 is a digital input module designed for the S800 I/O series. It provides 8 input channels suitable for 230V AC or DC voltage levels, allowing for integration of high-voltage field signals into the Advant OCS or other compatible control systems. This module is engineered for industrial environments requiring robust signal processing and reliable I/O density.
Features
8-channel digital input configuration.
Supports both 230V AC and 230V DC input signals.
Compatible with the ABB S800 I/O distributed architecture.
Compact design for efficient rack space utilization.
Optical isolation between field signals and the system bus for enhanced protection.
Technical Specifications
Product Model
DI821
Order Code
3BSE008550R1
Manufacturer
ABB
Input Voltage
230V AC/DC
Number of Channels
8
Weight
0.18 kg
Installation Guidelines
Ensure the control system is powered down before inserting or removing the module from the I/O rack.
The DI821 module should be mounted in a clean, dry environment within the specified operating temperature range.
Use appropriate shielded cabling for field inputs to minimize electromagnetic interference (EMI).
Verify that the field voltage matches the module rating (230V AC/DC) before making connections to avoid equipment damage.
Ensure proper grounding of the S800 I/O station to maintain signal integrity and safety compliance.
FAQ
What is the primary function of the ABB DI821? The DI821 is a digital input module used to interface 230V AC or DC field signals with an ABB automation system.
Is this module compatible with other S800 I/O components? Yes, the DI821 is designed specifically for the S800 I/O series and is compatible with standard S800 mounting bases and communication interfaces.
