YOKOGAWA Duplexed Network Program for FCN/FCJ OPC Server 2.1

YOKOGAWA Duplexed Network Program for FCN/FCJ OPC Server is a utility designed to provide resilient, dual-network communications between FCN/FCJ controllers and an OPC-compliant server. It enables high availability by monitoring two independent Ethernet paths and automatically switching to the healthy line when a fault is detected, helping keep real-time data and alarms flowing to SCADA, HMI, and historian systems during network disruptions.

Key capabilities:

• Dual-LAN redundancy with automatic and manual switchover
• Continuous monitoring of link health and communication quality
• Clear status indication and event logging to aid diagnostics
• Flexible settings for switchover behavior and alarm notifications
• Seamless operation alongside the FCN/FCJ OPC server without changing client applications

This program is suited for process and factory automation environments where uptime is critical and redundant control networks are standard practice. By maintaining a consistent data path to the OPC server, it helps reduce downtime, simplify maintenance, and improve the robustness of plant-wide data integration. Note: This utility complements the FCN/FCJ OPC server; it is not an OPC server by itself and should be configured according to your site’s network and redundancy policies.

YOKOGAWA Duplexed Network Program for FCN/FCJ OPC Server is developed by Yokogawa Electric Corporation. The most popular version of this product among our users is 2.1.