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Yokogawa Electric Corporation



All-in-one Controller with Network Redundancy Reduces Your TCO

The field control junction (FCJ) autonomous controller is compact and has FOUNDATION™ fieldbus and other I/O ports, making it ideal for applications where space is at a premium.

  • 24 V DC power supply
  • 6 AI, 2 AO, 16 DI, 16 DO
  • 2 Ethernet ports, 2 RS-232-C ports
  • FOUNDATION fieldbus H1 (optional)

Network Redundancy

Although some all-in-one controllers (remote terminal units - RTUs) may have multiple Ethernet ports, they do not support network redundancy. The FCJ, on the other hand, is designed for use as a hybrid controller in small, critical applications: two fully separate or redundant networks can be connected via its two Ethernet ports.