I. Basic Positioning

It belongs to the GE Baker Hughes (formerly GE Power) RXi distributed I/O subsystem. It is a remote substation controller for the Mark VIe heavy-duty gas turbine and steam turbine main control systems. It has independent computing capabilities and shares the scanning load of the main PLC, remotely collecting sensor signals, flame probes, valve positions, temperature and pressure signals from the site.

Core Hardware Configuration

Processor: 16-bit dedicated industrial CPU

Memory: 128KB RAM + 1MB Flash program storage

Bus Compatibility: I/O Bus V16 and above versions, compatible with Compact Logix series upper-level processors (not compatible with MicroLogix1500)

 Communication and IO Capabilities Communication interface

Ethernet: EtherNet/IP and PROFINET dual protocols, used for connecting to the Mark VIe main controller

RS485 serial port: Modbus RTU, for interfacing with third-party instruments and transmitters

Local expansion backplane: Plug-in AI/DI/DO/AO sub-modules

Standard IO capacity (basic complete unit)

4 digital input DI

8 analog input AI (compatible with 4–20mA flame sensors, pressure, temperature)

4 relay output DO (drives solenoid valves, ignition coils, alarm contacts)

Signal adaptation

Perfectly compatible with the 4–20mA signal of the RS-FS-9001 flame probe you previously queried, allowing direct acquisition of flame intensity values and uploading to the engine protection logic.

Electrical and Environmental Specifications Table

Parameter Item  Technical Value

Power Supply Voltage  24VDC Industrial Standard (±10% tolerance variation)

Channel Isolation  Photoelectric Isolation, Each Channel Independently Insulated

Response Speed  DI/DO: 1–5ms, Configurable Filterable by Software

Operating Temperature  -20℃ ~ +60℃ (Inside Control Cabinet)

Storage Temperature  -40℃ ~ +85℃

Protection Grade  IP20 (DIN Rail / Panel Cabinet Installation)

Explosion-proof Grade  Standard Intrinsic Safety Design, Suitable for Explosion-proof Zone Class I Div.2 of Power Station

Four. Application Scenarios

Main Scene: Remote Signal Acquisition Station for Heavy-duty Gas Turbines Mark VIe Systems such as GE 9FA/6FA/7HA, Combined with RS-FS-9001 Flame Sensor for Flame Outage Protection Interlock

Large-scale Waste Heat Boilers, Combined Cycle Power Plants, Petrochemical Heating Furnace Control Systems

Remote IO Expansion for Distributed Factory Production Lines, Pump Stations, Compressor Groups

Renovation of Old Units to ｒｅｐｌａｃｅ Old Models with Remote Controllers (Replacing the Early IS200 Series Substations)

Reuter-Stokes Cross Reference Matrix