Description
1. Product Description
2. Product Parameters
| Parameter | Specification |
|---|---|
| Power Supply | Typically operates on a 24V DC power supply. This provides a stable and consistent source of energy for the board’s internal components, ensuring reliable operation. |
| Input Channels | It has multiple input channels. These can be configured to accept different types of signals, including analog signals (e.g., 4 – 20mA or 0 – 10V) for measuring continuous parameters like voltage and current, and digital signals for status information such as the on/off state of a switch. |
| Output Channels | Similarly, there are multiple output channels. These can generate both analog and digital output signals. Analog outputs can be used to control devices that require a variable signal, like a proportional valve, while digital outputs are suitable for driving on/off devices such as relays. |
| Communication Interface | Equipped with an RS – 485 communication interface. This allows the board to communicate with other devices in the control network, such as the main control unit, monitoring stations, or other I/O boards. It enables data exchange, configuration, and remote monitoring. |
| Operating Temperature Range | Designed to operate within a temperature range of – 20°C to 60°C. This wide temperature tolerance makes it suitable for use in various environments, from cold outdoor power plants to warmer indoor industrial settings. |
3. Advantages and Features
- High – Density I/O: The IS200EMIOH1A offers a high – density I/O configuration, meaning it can handle a large number of input and output signals in a relatively compact form. This is beneficial in applications where space is limited, as it reduces the need for multiple boards and simplifies the overall system design.
- Signal Conditioning: The board includes built – in signal conditioning capabilities. It can amplify, filter, and convert input signals to a format that is suitable for processing by the main control unit. This helps to improve the accuracy and reliability of the data being transmitted, especially in noisy industrial environments.
- Reliability: Constructed with high – quality components and a robust design, the IS200EMIOH1A is highly reliable. It can withstand electrical noise, voltage fluctuations, and mechanical vibrations commonly found in industrial settings. This reliability is crucial for the continuous and stable operation of the generator excitation system.
- Flexibility: It offers a high degree of flexibility in terms of configuration. Users can easily adjust the input and output settings, such as signal types, ranges, and communication parameters, to meet the specific requirements of different applications. This makes it adaptable to a wide variety of generator types and control scenarios.
4. Application Areas and Application Cases
- Application Areas:
- Power Generation Plants: In thermal, hydro, and gas – fired power plants, the IS200EMIOH1A is used to interface with sensors and actuators in the generator excitation system. It helps in maintaining the proper excitation level of the generator, ensuring stable voltage and frequency output to the grid.
- Industrial Facilities: Large industrial facilities that have their own power generation systems, such as factories and refineries, also utilize this board. It enables precise control of the generators, which is essential for power – intensive industrial processes.
- Application Case: In a hydroelectric power plant, the IS200EMIOH1A is connected to sensors that measure the water flow rate, generator temperature, and stator voltage. Based on the data received from these sensors, the main control unit sends control signals through the board to adjust the excitation current of the generator. For example, if the water flow rate increases, indicating a higher potential for power generation, the board will receive a signal to increase the excitation current, allowing the generator to produce more electricity while maintaining a stable output voltage.
5. Comparison with Competing Products
- I/O Density: Compared to some competing products, the IS200EMIOH1A offers a higher I/O density. This means that it can handle more input and output signals in a smaller physical space, which can be a significant advantage in systems with limited cabinet space.
- Signal Conditioning: The built – in signal conditioning capabilities of the IS200EMIOH1A are often more advanced than those of competing products. This results in more accurate data transmission and better overall system performance, especially in environments with high levels of electrical noise.
- Reliability: GE’s reputation for quality and reliability gives the IS200EMIOH1A an edge over some competing products. Its ability to withstand harsh industrial conditions and provide long – term stable operation is a key selling point.
- Compatibility: The RS – 485 communication interface of the IS200EMIOH1A is a widely used standard, which makes it more compatible with other devices in the control network compared to some products with proprietary communication protocols.
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6. Selection Suggestions
- I/O Requirements: Evaluate your specific input and output requirements, such as the number of signals, signal types (analog or digital), and signal ranges. Make sure the IS200EMIOH1A can meet these requirements.
- System Compatibility: Check the compatibility of the board with your existing control system, including the main control unit and other devices in the network. Ensure that the communication protocols and power supply requirements are compatible.
- Environmental Conditions: Consider the operating environment of your application, such as temperature, humidity, and electrical noise levels. The IS200EMIOH1A’s operating temperature range and noise – immunity features should be suitable for your specific environment.
- Budget: While the IS200EMIOH1A 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 carefully. Incorrect wiring or improper grounding can lead to signal interference, inaccurate data transmission, or even damage to the board.
- Operating Environment: Keep the board within its specified operating temperature and humidity range. Exposure to extreme temperatures or high humidity can affect the performance and lifespan of the board.
- Maintenance: Regularly inspect the board for any signs of damage, loose connections, or component failure. Follow the recommended maintenance schedule, which may include cleaning, testing, and replacing worn – out components.
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