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Product Introduction
The GE IS220PDIOH1B Discrete Input/Output Module is an advanced I/O pack designed for use with GE’s Mark VIe turbine control systems. This versatile module combines both discrete input and output capabilities in one unit, providing an efficient solution for high-density signal interfacing between field devices and the turbine or industrial automation control system.
The IS220PDIOH1B supports 24 VDC field power operation, offers fast signal processing, and includes comprehensive diagnostic features to monitor both input and output channels in real time. The module is commonly deployed across gas turbines, steam turbines, combined cycle power plants, and industrial applications where reliable and flexible I/O performance is essential.
With its rugged design, easy integration, and built-in protections, the IS220PDIOH1B enhances system uptime, reduces installation effort, and simplifies plant maintenance.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | GE IS220PDIOH1B Discrete Input/Output Module |
| Model Number | IS220PDIOH1B |
| Series | GE Mark VIe / IS220 Series |
| Function | 16-point discrete I/O module |
| Number of Input Channels | 8 discrete inputs |
| Number of Output Channels | 8 discrete outputs |
| Input Voltage Range | 18–32 VDC (nominal 24 VDC) |
| Output Voltage Range | 18–32 VDC (nominal 24 VDC) |
| Input Current | 4–8 mA typical |
| Output Current | 0.5 A per channel (max) |
| Isolation | Channel-to-channel and channel-to-ground |
| Input Debouncing | Configurable |
| Onboard Diagnostics | Yes (open circuit, overload, short, status LEDs) |
| Communication Interface | Ethernet-based IONet (dual redundant) |
| Input Power | Supplied via Ethernet or external 24 VDC |
| Power Consumption | ~7 W typical |
| Operating Temperature Range | -30°C to +65°C |
| Storage Temperature Range | -40°C to +85°C |
| Humidity Range | 5% to 95%, non-condensing |
| Shock / Vibration Compliance | IEC 60068 |
| Mounting Type | Panel or DIN rail |
| Dimensions (H x W x D) | 159 x 178 mm |
| Weight | 0.8 kg |
| Certifications | CE, UL, CSA, ISO9001 |
Product Applications
The GE IS220PDIOH1B Discrete I/O Module is a highly adaptable solution suitable for a wide range of applications across power generation and industrial automation sectors:
-
Gas Turbine Control
Interfaces with proximity switches, valve position indicators, trip signals, and relay outputs. -
Steam Turbine Protection
Processes discrete signals from overspeed protection systems, limit switches, and safety circuits. -
Generator Control Panels
Connects to breaker position contacts, trip coils, interlock relays, and auxiliary status indicators. -
Balance of Plant (BOP)
Supports pump control, compressor packages, motor starters, and HVAC equipment. -
Process Automation
Used in refineries, chemical plants, and manufacturing for machine safety interlocks and process status. -
Retrofit and Upgrades
Provides backward compatibility with older GE Mark VI, Mark V, and Mark IV discrete I/O modules.
Product Advantages
-
Dual Functionality
Combines both input and output capability in one compact module for optimized panel space. -
Robust Performance
Wide voltage range (18–32 VDC) and high immunity to noise ensure reliable operation in harsh environments. -
Diagnostic Intelligence
Integrated diagnostics with LEDs and status reporting simplify troubleshooting and maintenance. -
Fast Response Time
Supports high-speed logic and deterministic control loops required in turbine applications. -
Flexible Deployment
Compatible with both panel and DIN rail mounting for easy installation. -
Backward Compatibility
Supports seamless upgrades and system extensions for legacy GE control platforms. -
Channel Isolation
Full channel-to-channel and channel-to-ground isolation enhances safety and system stability. -
Global Compliance
Certified for use in global markets with CE, UL, CSA, ISO9001 approvals.
Frequently Asked Questions (FAQ)
What is the primary function of the IS220PDIOH1B?
It combines discrete input and output functions, allowing the control system to interface with field devices.
How many I/O channels does the module support?
It supports 8 input channels and 8 output channels.
What is the nominal field voltage for this module?
24 VDC nominal (range: 18–32 VDC).
Does the module provide isolation?
Yes—full channel-to-channel and channel-to-ground isolation is provided.
Is the module compatible with the Mark VIe system?
Yes, it is specifically designed for the GE Mark VIe platform.
Can it be used to replace older Mark VI or Mark V modules?
Yes, it supports backward compatibility for upgrade projects.
Does the module include onboard diagnostics?
Yes, including open circuit, short circuit, overload detection, and LED indicators.
What is the output current capacity?
Each output channel supports up to 0.5 A maximum.
What are typical industries where this module is used?
Power generation, oil & gas, chemicals, manufacturing, and industrial automation.
What is the mounting option for the module?
It can be panel-mounted or DIN rail-mounted.
Recommended Related Models
| Model Number | Description |
|---|---|
| IS220PAICH1B | Analog Input Module |
| IS220PAOCH1B | Analog Output Module |
| IS220PTCCH1A | Thermocouple Input Module |
| IS220PDIAH1A | Discrete Contact Input Terminal Board |
| IS220PPROH1A | Turbine Protection Module |
| IS220VPROH1B | Vibration and Speed Protection Module |
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| Model Number | Description |
|---|---|
| DS200TCQAG1B | Control Sequence Board |
| DS200LDCCH1A | LAN Communication Board |
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| DS200TCPSG1A | Power Supply Board |
| DS200PTBAG1A | Terminal Board |
| DS200TBCAG1A | Analog Input/Output Terminal Board |
