ABB SPNIS21 Network Interface Slave Module Symphony Plus/Harmony

Manufacturer: ABB
Product No.: SPNIS21
Condition：in Stock
Product Type: SPNIS21
Product Origin: Switzerland
Payment:T/T, Western Union
Weight: 800g
Shipping port: Shanghai/Yiwu/Shenzhen
Warranty: 12 months

Quantity

Product Description

Overview

The ABB SPNIS21 is a dedicated Network Interface Slave (NIS) Module designed for ABB Symphony Plus and Harmony (INFI 90) distributed control systems. It provides a reliable communication gateway between a system node, such as a controller, and the plant-wide Cnet network. This module enables efficient, high-speed data transfer while maintaining signal integrity and operational continuity.

Technical Specifications

Feature	Specification
Model / Order Number	SPNIS21
Module Type	Network Interface Slave (NIS)
Communication Protocol	Cnet (Control Network)
Data Rates Supported	2 Mbaud, 10 Mbaud
Node Capacity	Up to 250 nodes per loop; 62,500 nodes per system
Address Range	1 – 250, configurable via software
Microprocessor	High-speed RISC-based processor
Isolation	Galvanic isolation for robust EMI immunity
Power Consumption	Approx. 5 W
Operating Temperature	0°C – 70°C
Physical Dimensions	Height: 358.14 mm, Width: 271.78 mm, Depth: 73.66 mm
Status Indicators	16-segment LED display for real-time diagnostics and error codes
Weight	0 kg

Functional Highlights

Cnet Connectivity: Provides seamless communication between Harmony/Symphony nodes, supporting both centralized and distributed network topologies.
Advanced Diagnostics: Front-panel LEDs display error codes and operational status, allowing quick identification of network or hardware issues.
Redundancy Support: Can be configured in redundant setups to ensure uninterrupted network communication.
Data Integrity: Hardware-level CRC ensures error-free data transmission across extended network cabling.
Hot-Swap Capability: Modules can be replaced while powered, supporting continuous plant operation.

Applications

Connecting controllers to plant-wide Cnet networks
Data exchange between central and satellite Harmony/Symphony nodes
Redundant communication pathways for critical process control
Upgrading legacy INNIS modules without redesigning system infrastructure

Technical Note

The SPNIS21 must be installed alongside a Network Processing Module (NPM). Firmware versions should match the system software (Composer or S+ Engineering), and node addressing must be configured correctly via dip switches.

FAQ

Q: Is the SPNIS21 compatible with older INNIS modules?
A: Yes, it is a direct replacement for INNIS21 and INNIS01/11, ensuring backward compatibility.

Q: Can it handle network redundancy?
A: Yes, redundant configurations allow automatic failover without interrupting data flow.

Q: How are diagnostics provided?
A: A 16-segment LED display reports real-time status, including error codes for rapid troubleshooting.

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