GE IS220PAICH1A Key features
Supports flexible I/O configurations with current or voltage modes
High accuracy ensures reliable analog control and monitoring
Opto-isolation protects against electrical interference
Fast response supports loop control and precise trending
Conformal-coated PCB ensures durability in industrial environments
Performance comparison
Parameter | IS220PAICH1A (standard) | IS220PAICH1B (no coating) | IS220PAIDX (input only) |
Analog Input Channels | 8 (4–20mA / 0–10V) | 8 (4–20mA / 0–10V) | 8 (4–20mA / 0–10V) |
Analog Output Channels | 8 | 8 | 0 |
Accuracy | ±0.1% FS | ±0.1% FS | ±0.1% FS |
PCB Coating | Conformal coated | None | None |
Summary:
Compared with PAICH1B (no coating) and PAIDX (input-only), PAICH1A offers full I/O with high accuracy, isolation, and conformal coating. Input-only variant omits outputs and protection.
Typical cooperation cases
UK – EDF Pembroke CCGT Plant Control Retrofit
GE IS220PDIOH1A modules were installed in the Mark VIe control system upgrade to manage gas turbine valve solenoids, emergency stops, and status lamps across multiple GT units.
Indonesia – Chevron Tuban Refinery Process Safety System
Integrated into PLC panels for controlling discrete I/O in flare systems, emergency shutdown (ESD), and interlock chains during the 2022 refinery automation revamp.
USA – Duke Energy Oconee Nuclear Station Digital Control Upgrade
Used in digital modernization of safety and balance-of-plant systems, enabling real-time relay-based logic and status monitoring via EX2100 control interface.
UAE – DEWA Jebel Ali Station K Gas Turbine Panel Integration
Applied in GT protection panels to handle binary status feedback and relay signaling for critical interlocks in high-temperature, desert operating environments.
