Features:
- Analog signal interface connecting field sensors and actuators to the S800 I/O rack backplane
- High-precision A/D and D/A conversion capability with multi-channel configuration support
- Designed for seamless integration with the S800 I/O series and various industrial automation platforms
The ABB NBIO-21CU operates as the Analog I/O Unit in the S800 I/O system, providing reliable analog signal processing for all modules within the control rack. It continuously converts incoming analog signals from field sensors and transmitters (including 4-20 mA current loops and standard voltage ranges) into digital data for controller processing, and generates analog output signals distributed through the rack backplane to drive actuators and field devices.
The NBIO-21CU provides essential analog I/O functions common to the entire control system, and is a critical component of the signal path, directly affecting the proper, normal operation of the overall automation system. One or multiple NBIO-21CU analog I/O units are required per rack depending on the desired channel count and signal type requirements.
For expanded analog I/O capacity applications, the S800 I/O system supports additional NBIO-21CU modules installed in supplementary rack positions. In addition to standard single module operation, the expanded configuration enables increased channel density for complex process control requirements. The S800 I/O multi-module configuration executes channel allocation using the internal addressing specified in the I/O module configuration.
The NBIO-21CU ABB Analog I/O Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB NBIO-21CU Analog I/O Unit Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
ABB NBIO-21CU Analog I/O Unit Specs
General
- Manufacturer ABB
- Model NBIO-21CU
- Condition New Original ready stock
- Product Family NAMC-11C,NAMC-51C
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Process Automation: Integrates with major distributed control systems like ABB Symphony Plus, Advant OCS, and Freelance 800F.
- Drive Signal Expansion: Functions alongside industrial variable speed motor drives (such as legacy ACS 600 series) to extend control loops.
- Field Device Regulation: Manages sensory equipment including mass flow controllers, temperature transducers, and pressure transmitters.
- Factory Retrofitting: Acts as a reliable hot-swappable drop-in replacement part to modernize aging manufacturing assembly lines.
- Industrial System Backplanes: Couples via fieldbus interface modules like the ABB CI854A or CI867 for system integration.
- Noise-Immune Optical Links: Features high-speed fiber-optic data ports to exchange data cleanly without electromagnetic interference.
- Multi-Signal Hardware Interfaces: Configured with independent channels accepting various signals (4–20 mA, 0–20 mA, and ± 10 V DC).
- Pluggable Wiring Blocks: Implements quick-connect terminal options (such as Phoenix Contact blocks) for flexible cabling.
- High-Precision Resolution: Offers standard 12-bit to 16-bit analog conversions to ensure sensitive tracking of process telemetry.
- Galvanic Electrical Isolation: Incorporates robust 1.5 kV AC circuit separation to safeguard fragile control logic from harsh electrical field-side surges.
- Low-Power Demands: Draws a lean 160 mA at 24 V DC, reducing overall cabinet thermal loading and energy footprints.
- Rapid Signal Filtering: Implements localized hardware filtering with a response timing window of roughly 2 ms for real-time tracking.