YOKOGAWA STARDOM FCN-RTU Controller

Software Wiring and Logic Analyzer: During the debugging phase, the software wiring function can simulate the input signals of on-site sensors and test logic circuits without the need to connect to an actual signal generator. The Logic Analyzer function can continuously record variable change curves and export them in text format, greatly facilitating the troubleshooting of complex temporal logic.

Web maintenance: Through a web browser, maintenance personnel can remotely view the running status, system logs, firmware versions, and other information of CPU and I/O modules without installing any client software.

Modular expansion and detailed selection

The FCN-RTU system is based on modular design and mainly includes the following components:

1. Basic components

CPU module (NFC050): Core processing unit with built-in I/O.

Base Module: Provides physical connections and backplane bus. There are long (NFBU200, supporting power redundancy) and short (NFBU050) options available, supporting 19 inch rack mounting and DIN rail mounting respectively.

Power Supply Module: Supports NFPW426 (non redundant) with 10-30VDC input and NFPW444/NFPW446 (redundant) with 24VDC input.

2. Key selection points for key I/O modules

Analog input: For applications that require inter channel isolation and HART communication, choose NFAI135 (8 channels) or NFAI143 (16 channels). For non isolated, high-density applications, choose NFAI141.

Temperature input: Select NFAT141 for thermocouple/mV signal, with an accuracy of ± 0.03% of full scale; The RTD (thermistor) signal selection NFAR181 also has excellent accuracy. Both support Burnout Detection.

Digital quantity and relay output: NFDV151 (32 channel DI) and NFDV551 (32 channel DO) are used for high-speed switching quantity. NFDR541 (16 channel relay output) is used to directly drive AC or DC loads, with contact capacity supporting 24-110VDC or 100-240VAC.

Communication module: Supports mainstream fieldbuses such as FOUNDATION Fieldbus (NFLF111, 4-port, H1), PROFIBUS-DP (NFLP121), and CANopen (NFLC121), facilitating the integration of third-party instruments and actuators.