Product Details
Description
The ABB INNIS21 is a high-performance network interface component specifically engineered for the INFI 90 and Symphony Plus distributed control systems. Functioning as a specialized communications processor, this module serves as the essential bridge between the high-speed Infi-Net (Cnet) plant loop and the local controller backplane. Its primary objective is to manage the complex protocols of the network layer, ensuring that process data, control commands, and system messages are synchronized across different nodes without burdening the main control processor. The INNIS21 provides the deterministic, real-time data throughput required for large-scale industrial automation environments where network reliability is paramount.
Specifications
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Brand: ABB Bailey
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Model Number: INNIS21
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Product Series: INFI 90 / Symphony Plus
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Component Type: Network Interface Slave (NIS)
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Connectivity Interface: Infi-Net (Cnet) to Harmony Control Bus
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Data Transfer Protocol: Proprietary Synchronous Network Protocol
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Power Requirements: +5 VDC (sourced via system backplane)
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Slot Consumption: Single slot in standard Module Mounting Unit (MMU)
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Operating Temperature Range: 0 to 70 degrees Celsius
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Diagnostic Indicators: Front-panel LED array for network status monitoring
Features
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Advanced Network Routing: Efficiently directs traffic between the plant-wide loop and local rack controllers to ensure low-latency data availability.
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Redundant Loop Capability: Built to support dual-path communication architectures, providing automatic failover to maintain system uptime during network cable damage.
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Dedicated Protocol Handling: Offloads all network management tasks from the processing module, optimizing the CPU cycles available for control logic execution.
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Autonomous Error Correction: Implements hardware-based checksums and parity checks to guarantee the integrity of data packets transmitted across the industrial network.
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Hardware Compatibility: Designed for seamless integration into both legacy Bailey INFI 90 racks and modern Symphony Plus hardware cabinets.
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On-Board Diagnostics: Continually performs internal health checks and monitors network signal quality, providing immediate notification of potential communication bottlenecks.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.