Description
| Product models | IS200VPROH2B, IS200VPROH1BEF, IS200VPWRH1AHD |
| Manufacturer | General Electric (GE) Automation & Controls |
| System platform | GE Mark VIe Turbine Control System |
| Module type | VPRO Processor Module (IS200VPROH2B / IS200VPROH1BEF), Power Supply Module (IS200VPWRH1AHD) |
| Primary function | Turbine Control, Sequence Logic, I/O Processing, Redundant Operation |
| Processor | Intel Atom or equivalent (High-performance embedded CPU) |
| Memory | 512 MB – 1 GB RAM, Flash Storage (for OS, application, and configuration) |
| Operating system | Windows Embedded Standard or VxWorks (GE-customized) |
| Control platform | Mark VIe Speedtronic™ – Integrated control for gas, steam, and wind turbines |
| Redundancy support | Dual redundant processors (Primary/Secondary), Hot-swappable, Bumpless transfer |
| Power supply (IS200VPWRH1AHD) | Input: 90–264 VAC or 100–300 VDC, Output: 24 VDC @ 10A, Redundant design |
| Communication interfaces | Dual 10/100/1000 Mbps Ethernet (Redundant), RS-232, USB, ARCNET (optional) |
| I/O connectivity | Interfaces with Mark VIe TBQB, TCQA, RTD, etc. via backplane |
| Control execution speed | 10 ms to 100 ms loop update (configurable) |
| Environmental rating | Operating temp: 0°C to 55°C, Humidity: 5% to 95% RH, non-condensing |
| Certifications | CE, UL, CSA, ATEX/IECEx (system-level) |
| Application | Gas turbines, Steam turbines, Combined cycle plants, Industrial power generation |
GE IS200VPROH2B IS200VPROH1BEF IS200VPWRH1AHD
Product Introduction
The GE IS200VPROH2B, IS200VPROH1BEF, and IS200VPWRH1AHD are critical components of the GE Mark VIe Speedtronic™ Turbine Control System, a state-of-the-art distributed control system (DCS) designed for gas, steam, and combined-cycle power plants. These modules form the core control and power infrastructure of the Mark VIe rack, ensuring reliable, real-time turbine management, protection, and automation.
The IS200VPROH2B and IS200VPROH1BEF are VPRO (Versatile Processor) modules that serve as the primary and secondary (redundant) controllers in the Mark VIe chassis. They execute turbine startup sequences, speed control, temperature regulation, load sharing, and protective shutdown logic. The IS200VPROH1BEF is often used in dual-processor configurations to provide hot standby redundancy, ensuring zero downtime during controller failures or firmware updates.
The IS200VPWRH1AHD is the high-efficiency power supply unit that delivers 24 VDC to the VPRO processors and other modules in the control cabinet. It supports universal AC/DC input and is designed for redundant operation, allowing uninterrupted power even if one supply fails.
Together, these modules form a robust, fault-tolerant control system that is essential for safe and efficient turbine operation in power generation, oil & gas, and industrial facilities. The Mark VIe platform integrates control, protection, and monitoring into a single system, reducing complexity and improving operational visibility.
Core Advantages and Technical Highlights
Dual-redundant processor architecture for high availability
The IS200VPROH2B and IS200VPROH1BEF operate in a primary/secondary (active/standby) configuration, with continuous synchronization. In the event of a fault, the secondary processor takes over within milliseconds, ensuring bumpless transfer and no process interruption—critical for turbine safety and grid stability.
High-performance embedded computing platform
Powered by an Intel Atom or equivalent processor, the VPRO module runs real-time control algorithms with minimal latency. It supports complex logic, sequence control, and data logging, enabling advanced diagnostics and predictive maintenance.
Integrated cybersecurity and system integrity
The Mark VIe system includes role-based access control, secure boot, audit trails, and encrypted communication to protect against cyber threats. Firmware updates are verified and digitally signed.
Redundant and resilient power supply (IS200VPWRH1AHD)
The IS200VPWRH1AHD power supply ensures stable 24 VDC output even under fluctuating input conditions. Its wide input voltage range (90–264 VAC / 100–300 VDC) makes it suitable for global installations. Multiple units can be paralleled for N+1 redundancy.
Seamless integration with Mark VIe ecosystem
The VPRO modules communicate with I/O cards (e.g., TCQA, TBQB), operator workstations, and historian systems via Ethernet and ARCNET. They are configured using GE’s ToolboxST software, which provides a graphical interface for logic programming, diagnostics, and tuning.
Scalable and future-ready design
The Mark VIe platform supports modular expansion, allowing integration with third-party systems, OPC UA servers, and enterprise asset management (EAM) platforms. It is compatible with predix, GE’s industrial IoT platform, for advanced analytics and digital twin applications.
Typical Application Scenarios
The IS200VPROH2B and IS200VPROH1BEF are deployed in combined-cycle power plants to control GE 7FA, 9FA, and 6FA gas turbines. In simple-cycle peaking plants, they manage fast-start sequences and grid synchronization.
In oil & gas facilities, these controllers manage mechanical drives, compressors, and offshore power generation units. They are also used in industrial co-generation plants, desalination facilities, and district heating systems.
The IS200VPWRH1AHD is essential in harsh environments (e.g., deserts, offshore platforms) where power stability and reliability are paramount.
GE IS200VPROH2B IS200VPROH1BEF IS200VPWRH1AHD
Related Model Recommendations
IS200TBDH – Terminal Board for I/O modules
IS200TCQAH – Analog I/O module (Voltage, Current, RTD)
IS200TREGH – Ethernet Switch module for Mark VIe
IS200DSPCH – Digital Signal Processing module
ToolboxST – GE’s engineering and configuration software
Mark VIe Operator Interface (OI) – Workstation for monitoring and control
IS200VCRxH – Communication Router modules
Installation, commissioning and maintenance instructions
Installation preparation: Power off the Mark VIe rack. Install the IS200VPROH2B and IS200VPROH1BEF in designated slots (Chassis 1 & 2). Insert IS200VPWRH1AHD into power supply bays. Ensure proper grounding and 24 VDC wiring. Connect Ethernet cables to redundant networks.
Commissioning steps: Power on the system. Use ToolboxST to connect to the VPRO modules. Download the control configuration and logic. Synchronize the secondary processor. Verify redundancy status, I/O communication, and turbine protection functions. Perform loop checks and sequence testing.
Maintenance suggestions: Monitor processor health, temperature, and network status via ToolboxST. Perform regular backups of configuration files. Check power supply output voltage and fan operation. Replace modules only with OEM-certified replacements to ensure compatibility.
