New Release R2.20

The cost of sending maintenance engineers to the widely distributed sites to inspect the production equipment poses a heavy financial burden. Yokogawa has enhanced the FCN-RTU low power autonomous controller by adding support for the FOUNDATION fieldbus and HART digital communication protocols, thereby giving it the capability to centrally manage the field devices.With it’s capability, maintenance can be achieved on right time, then maintenance cost is dramatically reduced.

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• Reduced wiring cost

FCN-RTU with FOUNDATION fieldbus receives multi-variable data (temperature, pressure, etc.) from a multi-sensing transmitter over a single cable, and also allows multi-drop connections with field devices. This reduces wiring installation and maintenance costs, and the simplified wiring is easier to maintain.

• High Accuracy

Communication between FCN-RTU and transmitter via FOUNDATION fieldbus lessens the need for digital-to-analog and analog-to-digital data conversion, and then improves the data accuracy.

By using this FCN-RTU together with Plant Resource Manager (PRM™), Yokogawa’s integrated device management software package, field devices information at remote site can be centrally managed. This information can be used to schedule inspections, improving maintenance efficiency. PRM’s diagnostic functions such as differential pressure transmitter impulse line blocking diagnosis allow maintenance engineers to determine when maintenance should be performed. With predictive maintenance, a device is maintained before it fails; this is particularly useful with devices installed in remote locations, where a quick response is difficult.

 Read more about FOUNDATION fieldbus

 Read more about PRM

FCN-RTU is compliant with Explosion proof in North America, FM Non-incendive Class I Division 2.

List of Explosion Proof Approved to FCN-RTU

• FM Non-incendive Class I Division 2
• CENELECATEX Type "n"
• CSA Non-incendive Class I Division 2
• CSA Type "n"

Short base module (Half width of the current base module) is available.

Long Base Module	Short Base Module

Maximum number of devices using Ethernet communication is increased.

Modbus CommunicationPortfolio

32bit data access POUs (EnronModbus, Dnbus) are prepared.

DNP3 Communication Portfolio

Multi-drop connection is supported.

New POUs setting Event Class are prepared.

Inter-character timeout is supported.

Logging Portfolio

Daily report files over a year are stored on a controller.