Softing Industrial Launches usbLink CN Gateway to Support Legacy Infrastructure
Maintaining legacy operational technology remains a critical priority for engineering and manufacturing plants worldwide, particularly where highly stable deterministic networks are deeply embedded in production lifecycles. To address a vital gap left by sunsetted component lines, industrial communication expert Softing Industrial has unveiled the usbLink CN. This dedicated interface gateway bridges modern computing environments with established network protocols, offering field technicians and systems engineers a reliable tool for local network configuration, diagnostics, and monitoring on the factory floor.
Before contemporary ethernet standards achieved dominance on the plant floor, high-speed scheduled communications relied heavily on specialized network architectures designed to move time-critical inputs and outputs with strict determinism. Many long-standing production systems utilize these topologies for linking programmable logic controllers to distributed I/O chassis, remote drives, and human-machine interfaces. Connecting modern maintenance laptops to these older systems has become increasingly difficult as laptop manufacturing trends shifted away from PCMCIA slots and early serial connections, leaving plant personnel dependent on specialized serial conversion hardware.
The urgency for a reliable alternative grew after original equipment manufacturers began phasing out legacy peripheral communication cards and corresponding proprietary USB adapters, such as the widely deployed 1784-U2CN hardware interface. Softing developed the usbLink CN to act as a drop-in replacement, engineered specifically to replicate the precise communication properties required by field devices without modifying existing firmware or logic programs. Built within the framework of official industrial technology partnerships, the interface translates standard USB 2.0 signaling from a commercial PC into standard network packets via an integrated RJ45 connection port, matching the electrical and timing requirements of legacy topologies.
Operational convenience guided the physical layout of the adapter, incorporating onboard hardware components to accelerate field setup and simplify loop verification. The device integrates manual rotary switches directly on its casing, allowing technicians to rapidly assign unique decimal node addresses without needing to pre-configure the device through software utilities. Diagnostic light-emitting diodes provide immediate visual verification of both USB connection status and network link integrity, drastically shortening the time required to isolate physical layer wiring faults from application errors. On the software side, the gateway integrates seamlessly with standard device management suites, network configuration utilities, and driver layers such as RSLinx and RSNetWorx, ensuring existing documentation and asset tracking remain entirely uninterrupted.
While Greenfield automated facilities enjoy the simplicity of standardized network architecture, Brownfield expansion projects frequently encounter diverse, multi-generation communication platforms. Device lifecycles for heavy machinery often span decades, outliving multiple iterations of programming terminals and programming interfaces. Specialized communication tools ensure that older, highly functional automated lines can be kept running efficiently, postponing costly complete control refits while ensuring engineering teams can instantly view real-time process states during unplanned downtime events.
Written by Harrison Finch, a veteran control systems specialist with more than 15 years of industry tenure focused on retrofitting network communication pipelines and managing legacy lifecycle migrations across discrete manufacturing facilities.