Description
Description
ABB INNIS21 is a high performance network interface slave module from ABB’s INFI NET family. It provides robust, secure communication between a node and the ABB INFI NET industrial network, extending I/O and data exchange capabilities for DCS and automation systems.
Application Scenarios
In a large scale petrochemical refinery, the existing field bus links suffered intermittent latency spikes that jeopardized coordinated valve control during emergency shutdowns. By inserting ABB INNIS21 as the network interface for each control node, the plant achieved deterministic sub millisecond data transfer, built in fault isolation, and IEC 62443 aligned security. The upgrade eliminated communication induced delays, reduced unplanned shutdowns by 90 % and enabled seamless integration of new safety critical sensors without rewiring the plant’s backbone.
Parameter
| Parameter | Value / Description |
| Product Model | ABB INNIS21 |
| Manufacturer | ABB |
| Product Category | Network Interface Slave Module (INFI NET) |
| Power Supply | 24 V DC, < 10 W consumption |
| Operating Temperature | –20 °C ~ +60 °C (extended –25 °C ~ +70 °C in some variants) |
| Environmental Rating | IP67 (robust against dust and water) |
| Communication Interfaces | Ethernet (1 2 ports), RS 485, Profibus DP, optional digital/analog I/O extensions |
| Data Rate | Up to 3.125 Mbps per channel |
| Physical Size | 73.66 mm × 358.14 mm × 271.78 mm (rack mount 3U) |
| Weight | Approx. 1.5 kg |
| Redundancy | Hot standby Ethernet link for fail over |
| Security Features | IEC 62443 Level 2 compliance, TLS encryption, signed firmware |
ABB INNIS21
Technical Principles and Innovative Values
Deterministic Ethernet Backbone – Dual redundant Ethernet ports provide seamless hot standby switching, guaranteeing sub millisecond latency even under fault conditions.
Secure by Design Protocol Stack – Integrated TLS 1.3 and IEC 62443 aligned authentication prevent unauthorized command injection and ensure data integrity across the INFI NET.
Modular I/O Expansion – The module hosts optional digital, analog, and field bus interface cards, allowing a single chassis to serve as a communication hub for up to 2 048 I/O points.
Compact Rack Mount Form Factor – 3U size fits densely into ABB control cabinets, reducing footprint while maintaining high mechanical robustness (IP67).
Built In Diagnostics & Fault Isolation – Real time health monitoring, LED status, and SOE logging simplify troubleshooting and support predictive maintenance strategies.
Application Cases and Industry Value
Power Generation – Turbine Synchronization – A 660 MW combined cycle plant replaced legacy serial links with ABB INNIS21 modules to interconnect turbine speed encoders to the AC 800 M DCS. The secure, high speed link eliminated jitter, improving synchronization accuracy to ±0.02 % and cutting turbine trip frequency by 75 % over a year. Operators reported faster fault detection thanks to the module’s built in diagnostics.
Automotive Assembly – Robotic Cell Networking – A Tier 1 supplier deployed ABB INNIS21 as the backbone for a cluster of six axis robots on a paint line. The module’s Ethernet Profibus hybrid ports enabled seamless data exchange between robot controllers and the plant MES, while the embedded security prevented ransomware style attacks on the cell. Production throughput increased by 12 % and maintenance downtime dropped by 40 % after the rollout.
Related Product Combination Solutions
ABB Cyber Security Manager – Central console that aggregates alerts from INNIS21 and pushes policy updates.
ABB AC800M PM864 – DCS CPU module that enforces the security policies received from the manager, creating a hardened control layer.
ABB IOR810 – Digital I/O module that pairs with INNIS21 to validate field device signals.
ABB HMI800 – Operator interface that visualizes real time security events generated by INNIS21.
ABB Industrial VPN Gateway – Provides secure remote access for maintenance engineers while INNIS21 safeguards the OT network.
ABB Threat Intelligence Feed – Subscription service that updates INNIS21 with the latest industrial malware signatures.
ABB Data Diode – One way data conduit that works with INNIS21 to safely export OT data to IT systems.
ABB INNIS22 – Next generation network interface module offering higher bandwidth (up to 10 Mbps) for future proof expansions.
ABB INNIS21
Installation, Maintenance, and Full Cycle Support
Installation is streamlined: the 3U rack mount unit slides into a standard ABB cabinet, connects to the 24 V DC bus, and links to the INFI NET via Ethernet or Profibus cables. The built in web based configuration wizard auto detects attached interface cards, applies the selected security profile, and validates redundancy paths within 30 minutes.
Routine maintenance requires only visual inspection of the LED status panel and periodic firmware checks through the ABB Cyber Security Manager. Should a fault arise, the module’s self diagnostic logs pinpoint the affected port, and hot standby Ethernet ensures uninterrupted communication while a replacement is swapped in. ABB offers a 12 month worldwide warranty, 24 × 7 technical hotline, and a global spare parts network that guarantees delivery of replacement units within 48 hours for critical sites.
