GE Mark VIe IS220PAICH2A Analog I/O Pack PAIC Module
The GE IS220PAICH2A (Part Number: IS220PAICH2A) is a high-performance Analog Input/Output (PAIC) pack designed for the Mark VIe Speedtronic turbine control system. This intelligent I/O module serves as a localized digitization hub, mounting directly onto specific terminal boards to interface with process sensors and actuators. The IS220PAICH2A is engineered to handle 10 differential analog inputs and 2 analog outputs, providing the high-speed data acquisition necessary for the real-time control of gas and steam turbines.
Equipped with dual redundant Ethernet ports, the IS220PAICH2A ensures ultra-reliable communication with the Mark VIe controllers. It utilizes a 16-bit A/D converter to deliver precise measurements of current (4–20 mA) and voltage signals, with an accuracy rating of ±0.1% across the full-scale range. The module’s robust industrial design includes comprehensive internal diagnostics, hardware self-tests, and channel-to-backplane isolation, making it a critical component for maintaining system uptime in mission-critical power generation and oil & gas facilities.
Detailed hardware parameters and operational limits for the IS220PAICH2A:
| Parameter | Specification Details |
| Model Number | IS220PAICH2A |
| Manufacturer | General Electric (GE) |
| System Compatibility | Mark VIe Control System |
| I/O Configuration | 10 Analog Inputs / 2 Analog Outputs |
| Input Signals | 4–20 mA current, ±5 V, ±10 V voltage |
| Output Signals | 4–20 mA current |
| Resolution | 16-bit Analog-to-Digital conversion |
| Accuracy | ±0.1% of full-scale range |
| Communication | Dual redundant 100 Mbps Ethernet (IONet) |
| Isolation | 1500 Vrms galvanic isolation |
| Power Input | 28 VDC nominal (range 18–30 VDC) |
| Operating Temp | -30 °C to +65 °C (-22 °F to 149 °F) |
| Dimensions | 10.16 cm x 3.81 cm x 15.24 cm |
| Weight | 0.3 kg |
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