Description

Product Description

The ABB INNIS21R / INNIS21 is a high-performance communication interface module engineered for use within ABB Bailey Infi-90, Net-90, and Symphony Plus distributed control systems. It operates as a slave interface that connects a local control node to the Infi-Net (Cnet) backbone, enabling deterministic, high-speed data transfer across the control network.

This module is designed for mission-critical industrial environments where stable communication, system scalability, and diagnostic transparency are essential. By acting as a bridge between node-level controllers and the network infrastructure, it ensures synchronized operation and efficient data exchange across large automation architectures.

Key Functions and Features

• Node-to-network communication via ABB Infi-Net (Cnet)

• Supports deterministic data transmission for real-time control systems

• Integrated diagnostics for communication status and fault detection

• Redundant communication capability for increased system reliability

• Scalable architecture suitable for large distributed systems

• Compatible with legacy and modern ABB Symphony control platforms

Technical Specifications

General Information

• Model: INNIS21R / INNIS21

• Product ID: INNIS21R

• Manufacturer: ABB

• Description: Loop Interface Slave Module

Communication Characteristics

• Network Type: Infi-Net (Cnet)

• Communication Role: Slave interface to control node

• Protocol: ABB proprietary high-speed communication protocol

• Transmission Speeds:

• 10 Mbaud

• 2 Mbaud

• 0.5 Mbaud

System Capacity

• Maximum nodes per system: up to 62,000+

• Maximum nodes per network segment: up to 250

• Maximum Cnet-to-Cnet interfaces: up to 250

Electrical Requirements

• Operating Voltage: +5 VDC

• Current Consumption:

• Typical: 825 mA

• Maximum: 1.1 A

• Power Consumption: approx. 4.1 W to 5.5 W

Physical Specifications

• Dimensions: 17.8 cm × 5.1 cm × 33.0 cm

• Weight: 0.2 kg

• Mounting: Standard ABB rack/module slot

Compliance and Identification

• Customs Tariff Code: 8517620090

Applications

• Power generation control systems (turbines, boilers)

• Oil & gas production and refining automation

• Chemical and petrochemical processing plants

• Pulp & paper manufacturing systems

• Large-scale distributed control system (DCS) networks

FAQ

What is the main role of the INNIS21 module?
It provides communication between a controller node and the Infi-Net network, enabling real-time data exchange and system coordination.

Is the INNIS21R backward compatible with older systems?
Yes, it is designed to work with legacy Bailey Infi-90 and Net-90 systems as well as newer Symphony Plus platforms.

Does this module support redundant communication?
Yes, it can be configured in redundant network architectures to improve system availability and fault tolerance.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems