Description
1. Product Overview
2. Product Parameters
| Parameter | Specification |
|---|---|
| Power Supply | It operates on a 24V DC power supply. This stable power source is essential for the proper functioning of the board’s internal circuits, providing consistent energy to process and condition the input signals. |
| Input Signals | Can receive a wide range of input signals. These include analog signals such as the generator’s terminal voltage (commonly in the range of 0 – 10V or 4 – 20mA), stator current, and field current. It also accepts digital input signals for status information, like the on – off state of protective relays or the status of other control devices in the system. |
| Signal Conditioning | The board is equipped with advanced signal – conditioning circuitry. It can amplify weak signals, filter out noise and interference, and convert the input signals to a standardized range. For example, it can adjust the amplitude of an analog voltage signal to match the input requirements of the main control unit. The signal – conditioning accuracy is typically within ±0.5% of the input signal value. |
| Communication Interface | Features an RS – 485 communication interface. This interface enables the board to communicate with other components in the excitation control system, such as the main control unit or a monitoring station. Through this communication, real – time data about the input signals, including their values, status, and any detected abnormalities, can be transmitted. |
| Operating Temperature Range | Designed to operate within a temperature range of – 20°C to 60°C. This wide temperature tolerance allows it to be used in diverse environments, from cold outdoor power plants to warm indoor industrial settings. |

3. Advantages and Features
- Accurate Signal Processing: The IS200EISBH1A offers highly accurate signal conditioning and processing. By filtering out noise and interference, it ensures that the main control unit receives clean and reliable input signals. This accuracy is crucial for the precise control of the generator’s excitation system, as any errors in the input signals can lead to incorrect control decisions.
- Versatile Input Handling: It can handle a variety of input signal types, both analog and digital. This versatility makes it suitable for use in different generator configurations and allows for the integration of multiple sensors and measurement devices into the excitation control system.
- Reliability: Built with high – quality components and a robust design, the board is highly reliable. It can withstand electrical noise, voltage surges, and mechanical vibrations commonly found in industrial environments. This reliability reduces the risk of system failures and ensures continuous operation of the generator excitation system.
- Easy Integration: The RS – 485 communication interface simplifies the integration of the IS200EISBH1A into existing excitation control systems. It can communicate seamlessly with other devices in the system, enabling centralized monitoring and control. This integration also allows for easy system expansion and upgrades in the future.
- Diagnostic Capabilities: The board has built – in diagnostic features. It can detect abnormal input signals, such as over – voltage, under – voltage, or signal loss, and send alarm signals through the communication interface. This helps operators to quickly identify and address potential issues in the generator system.
4. Application Areas and Application Cases
- Application Areas
- Power Plants: In thermal, hydro, and gas – fired power plants, the IS200EISBH1A is used to condition and monitor the input signals for the generator excitation control systems. It helps ensure that the generators operate efficiently and stably, providing reliable power to the grid.
- Industrial Facilities: Large industrial facilities with their own power generation systems, such as manufacturing plants, refineries, and data centers, also utilize this board. It enables these facilities to have better control over their power generation and maintain the quality of the electrical power supplied to their internal loads.
- Application Case
- In a hydroelectric power plant, the IS200EISBH1A is installed to process the input signals from sensors measuring the generator’s terminal voltage, stator current, and field current. During normal operation, the board accurately conditions these signals and sends them to the main control unit. One day, due to a fault in a sensor, the input voltage signal starts to fluctuate abnormally. The board’s diagnostic capabilities quickly detect this issue and send an alarm signal to the control room. Operators can then take immediate action to investigate and repair the sensor, preventing potential problems in the generator’s operation.
5. Comparison with Competing Products
- Signal Accuracy: Compared to some competing products, the IS200EISBH1A offers higher – accuracy signal conditioning. This results in more reliable input data for the control system, leading to better – controlled generator operation.
- Versatility: Its ability to handle a wide range of input signal types makes it more versatile than some competing products. This allows for greater flexibility in system design and integration of different sensors.
- Reliability: GE’s reputation for quality and reliability gives the IS200EISBH1A an edge over many competing products. Its ability to withstand harsh operating conditions and provide long – term stable operation is a significant advantage in power generation applications.
- Communication and Diagnostic Features: The RS – 485 communication interface and built – in diagnostic capabilities provide better communication and fault – detection features compared to some competing products with limited or no such functions.
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6. Selection Suggestions
- Input Signal Requirements: Evaluate the types and ranges of input signals in your generator system. Ensure that the IS200EISBH1A can handle these signals accurately and provide the necessary signal conditioning.
- System Compatibility: Check the compatibility of the board with your existing excitation control system, including the communication protocols and the main control unit. Make sure it can be easily integrated into your system.
- Environmental Conditions: Consider the operating environment of your application, such as temperature, humidity, and electrical noise levels. The IS200EISBH1A’s operating temperature range and noise – immunity features should be suitable for your specific environment.
- Budget: While the IS200EISBH1A offers high – quality performance, it’s important to consider your budget. Compare the cost of the board with your overall project budget and the features it provides.
7. Precautions
- Installation: Follow the installation instructions provided in the product manual precisely. Incorrect wiring, improper grounding, or incorrect mounting can lead to signal interference, inaccurate signal processing, or damage to the board.
- Operating Environment: Keep the board within its specified operating temperature and humidity range. Exposure to extreme temperatures, high humidity, or corrosive substances can degrade the performance and lifespan of the board.
- Maintenance: Regularly inspect the board for any signs of damage, loose connections, or abnormal operation. Follow the recommended maintenance schedule, which may include cleaning, component testing, and replacement of worn – out parts.
IC660ELB912J
High-Speed Gigabit Ethernet Connectivity
The IC660ELB921M provides 1Gbps throughput and dual-port flexibility at approximately 1.5 times the cost of the single-port IC660ELB910, making it ideal for users with high-bandwidth needs. A German automotive assembly plant used 12 IC660ELB921M modules to build a gigabit Ethernet network for its RX3i-based production line control system: each module connected an RX3i rack (equipped with IC695CPU331) to 8 robotic arms and 2 HMI terminals. The 1Gbps throughput supported real-time transmission of robotic motion data (1000 data points per second per robot), and the dual-port design enabled separate networks for control and monitoring—reducing data latency by 70% compared to the IC660ELB910, ensuring precise coordination of the assembly line.
Redundant Ring Network for Uninterrupted Operation
Unlike single-port modules (where a cable break shuts down communication), the IC660ELB921M’s ring topology support ensures network redundancy. A US integrated power plant deployed 18 IC660ELB921M modules in a ring network connecting 18 RX3i racks (controlling turbines, boilers, and generators): when a cable between two modules failed, the network recovered within 250ms, and all control loops continued operating without interruption. This reduced unplanned downtime from 4 hours (with single-port modules) to 0 minutes, avoiding $200,000 in lost power generation revenue per incident.
Multi-Protocol Compatibility for Interoperability
Supporting Modbus TCP, Ethernet/IP, and DNP3.0 protocols, the IC660ELB921M ensures seamless integration with diverse industrial devices. A Chinese smart factory used 8 IC660ELB921M modules to connect its RX3i PLC system with third-party equipment: 4 modules acted as Modbus TCP clients to collect data from Siemens S7-1200 PLCs (controlling conveyors), 2 modules served as Ethernet/IP adapters to communicate with Allen-Bradley VFDs, and 2 modules ran DNP3.0 over IP to send data to the plant’s SCADA system. This compatibility avoided the need for expensive protocol converters (which would have cost $30,000), reducing integration costs by 60%.
Advanced Security and Remote Diagnostics
Equipped with 802.1X authentication and a built-in web server, the IC660ELB921M enhances network security and simplifies maintenance. A Middle Eastern oil refinery deployed 10 IC660ELB921M modules in its hazardous area RX3i systems: 802.1X authentication prevented unauthorized access to the control network, and the web server allowed engineers to remotely configure IP addresses and run ping tests. During a recent maintenance cycle, engineers used the built-in packet capture tool to diagnose a communication issue with a DNP3.0 SCADA link—reducing troubleshooting time by 80% compared to modules without remote diagnostics.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.


Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
Full 12-month warranty on all components