GE IS220PDIAH1B Mark VIe Discrete Input I/O Pack in stock
GE IS220PDIAH1B is a high-density discrete input I/O pack developed for GE Speedtronic Mark VIe turbine control platform. It collects digital contact signals from field devices, converts on/off status into digital data and transmits to the main turbine controller for real-time logic judgment and status monitoring.

This module is equipped with 24 independent discrete input channels with built-in channel diagnosis, supporting 24VDC field contact signals. It has hazardous area certification and compact rack-mounted structure, widely used as replacement spare parts in power plant and oil & gas turbine control systems.
Main Specifications
| Brand & Model | Brand: GE; Model: IS220PDIAH1B; Series: Mark VIe Speedtronic |
| Type | Discrete Input I/O Pack |
| Input Channels | 24 channels discrete contact input |
| Field Signal | Nominal 24VDC, max 32VDC contact input |
| Certification | UL certified for hazardous and non-hazardous locations |
| Operating Temperature | -30℃ ~ +65℃, rack mount installation |
Core Functions
| Digital Signal Acquisition | Capture field contact on/off status and transfer data to Mark VIe controller. |
| Channel Self-Diagnosis | Real-time detection of open circuit and short circuit faults for each input channel. |
| Hazardous Area Adaptation | Designed for use in classified hazardous industrial locations. |
| High-speed Bus Communication | Exchange I/O data with the main controller via Mark VIe high-speed backplane bus. |
| Status Indication | Front LED indicators show channel and module working status for quick troubleshooting. |
| Hot Swap Capability | Support online module replacement without shutting down the whole control rack. |
Application Scenarios
| Mark VIe Turbine Control Rack | Discrete input I/O pack for GE Mark VIe Speedtronic turbine control cabinet. |
| Gas & Steam Turbine Monitoring | Collect limit switch, relay and valve feedback discrete signals for turbines. |
| Combined Cycle Power Plants | Turbine protection and auxiliary equipment status signal collection. |
| Oil & Gas Facilities | Turbine compressor discrete signal monitoring for onshore and offshore sites. |
| System Maintenance | Spare replacement for faulty discrete input modules during cabinet overhaul. |
| Turbine System Retrofit | Upgrade and reconstruction of legacy Mark VIe turbine control systems. |
FAQ
| Question | Answer |
| What is GE IS220PDIAH1B? | It is a 24-channel discrete input I/O pack for GE Mark VIe Speedtronic turbine control system. |
| What signal does it receive? | It receives 24VDC field contact on/off discrete signals from field switches and relays. |
| Does it support hot swap? | Yes, the module supports hot swap for online replacement without system shutdown. |