What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Integrating process input/output subsystems with high-level control networks, the Honeywell 51303979-400 serves as a reliable I/O Link Interface designed for industrial Distributed Control Systems (DCS). This module functions as an I/O link extender, facilitating deterministic, real-time communication between the process controller and remote I/O chassis.
Engineered to withstand demanding industrial environments, the module coordinates data transmission over extended physical distances while ensuring high signal integrity and low latency. It mounts directly into compatible Honeywell system enclosures, providing seamless physical and electrical integration with standard system backplanes.
| Manufacturer | Honeywell |
| Part Number / Model | 51303979-400 |
| Module Type | I/O Link Interface / Extender |
| Weight | 2.0 kg |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|