Description
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric |
| Model | IS200ERIOH1ACB |
| Digital Inputs | 16–32 isolated inputs (relay status, trip signals) |
| Digital Outputs | 16–32 isolated outputs (trip commands, control signals) |
| Analog Inputs | 8–16 analog inputs (relay analog values) |
| Highway Interface | 2× data highway ports (GE proprietary) |
| Supported Protocols | GE data highway, Modbus RTU |
| I/O Update Rate | 5–20 ms (configurable) |
| Power | +5V DC / 2.5A, ±15V DC / 0.5A |
| Temp Range | -30°C to +65°C |
| MTBF | > 100,000 hours |
| Suffix Meaning | “ACB” = specific relay I/O/highway configuration |
Advantages and Key Features
Dedicated Relay I/O and Highway Interface: The IS200ERIOH1ACB provides both direct relay signal processing and highway communication in a single board.
High-Speed I/O Processing: Handles digital and analog signals from protective relays with 5–20 ms update rates.
Trip Signal Integration: Direct inputs for trip circuit status and outputs for trip commands.
Pre-Configured Firmware: “ACB” firmware reduces commissioning time.
Application Fields and Case Studies
Used in generator protection systems for trip circuit monitoring and relay signal processing. In a 600 MW plant, the IS200ERIOH1ACB processed trip circuit status and relay analog signals, enabling fast protection response.
Comparison with Competing Products
| Dimension | IS200ERIOH1ACB | IS200ERBPG1ACA | IS200ERDDH1ABB |
|---|---|---|---|
| Primary Function | Relay I/O + highway | Relay/breaker control | Relay data highway |
| Digital I/O | Yes | Limited | No |
| Highway Interface | Built-in | No | Yes |
| VME Integration | Direct | Direct | Direct |
Selection Recommendations
Choose IS200ERIOH1ACB when direct relay I/O processing with highway communication is required. Verify “ACB” firmware matches your relay equipment. Deploy redundant boards for critical protection I/O paths.
Precautions and Important Notes
Use ESD-safe handling. Verify field wiring and I/O connections. Confirm “ACB” firmware supports your relays and highway nodes. Never interrupt firmware updates. Board draws 2.5A – verify rack power capacity. Document all configurations. Store spares in anti-static packaging. Do not mix variants in redundant pairs. Allow 30 seconds boot time. Test all I/O and highway functions during commissioning.
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