IS220PHRAH1B | IS230SNHRH2A | GE Mark VIe Analog I/O Pack

Product Overview

The IS220PHRAH1B (often cross-referenced with the IS230SNHRH2A assembly) is a high-resolution Analog I/O pack engineered for the GE Mark VIe control platform. This module serves as a critical bridge between smart field instrumentation and the IONet digital network. By integrating Highway Addressable Remote Transducer (HART) technology, the IS220PHRAH1B allows for the simultaneous transmission of standard 4–20 mA analog control signals and digital diagnostic data. This dual-layer communication enables turbine operators to monitor device health, perform remote calibrations, and access secondary process variables without additional field wiring.

Technical Specifications

• Manufacturer: GE Fanuc / General Electric

• Series: Mark VIe Control System

• Model Number: IS220PHRAH1B

• Alternate Part Number: IS230SNHRH2A

• Module Type: HART-Enabled Analog Input/Output Pack

• Communication Interface: Dual 100 Mbps Ethernet ports (Redundant IONet)

• Signal Support: 4–20 mA DC current loops

• HART Functionality: Full digital pass-through for FSK (Frequency Shift Keying) data

• Compatible Terminal Boards: IS200SHRAH1A, IS200SHRAH2A, and related SHRA series

• Analog Inputs: High-resolution acquisition with noise filtering (typically 10+ channels depending on TB pairing)

• Analog Outputs: Precision loop control for actuators and positioners

• A/D Conversion: 16-bit resolution for superior signal accuracy

• Power Input: 28 VDC nominal (supplied via terminal board connection)

• Thermal Management: Convection cooled; rated for 0°C to +60°C operating ambient

• Safety & Compliance: Designed for high-availability turbine protection and balance-of-plant automation