IS220PDIAH1A-2 IS220PDIAH1A-1 IS220PDIAH1A-3 IS220PDIAH1A-4

The GE IS220PDIAH1A is a versatile discrete input/output (I/O) module engineered for the Mark VIe control platform, delivering reliable digital signal acquisition and control in demanding industrial environments. Designed as a compact I/O pack, it integrates both input monitoring and output control within a single module—helping reduce cabinet space while improving system efficiency.

With dual Ethernet connectivity, high-speed signal processing, and robust isolation, this module ensures stable communication between field devices and the control system. It is widely deployed in turbine control systems, process automation, and mission-critical operations where precision and reliability are non-negotiable.

Technical Specifications

Parameter	Specification
Model	IS220PDIAH1A
Module Type	Discrete Input/Output Module
System Compatibility	Mark VIe Control System
Digital Inputs	16 channels (24 V DC)
Digital Outputs	8 channels (relay type)
Output Rating	Up to 2 A @ 250 VAC / 3 A @ 30 VDC
Input Response Time	< 1 ms
Output Switching Time	< 10 ms
Power Supply	24 V DC
Power Consumption	< 5–8 W
Communication Interface	Dual Ethernet ports
Contact Wetting Voltage	32 V DC
Minimum Operating Voltage	27.4 V DC
Isolation	Channel-to-channel galvanic isolation
Operating Temperature	-30°C to +65°C
Humidity	5%–95% RH (non-condensing)
Dimensions (L×W×H)	121 × 82.6 × 41.9 mm
Weight	0.60 kg

Recommended Companion Modules

IS220PAOCH1A – Analog Output Module
IS220PAICH1A – Analog Input Module
IS220PTCCH1A – Thermocouple Input Module
IS220PRTDH1A – RTD Input Module
IS220PSFDH1A – Power Supply Module

Frequently Selected GE Modules

IS220PDIAH1B
IS220PDOAH1A
IS220YDIAS1A
IS220YDOAS1A
IS220UCSAH1A
IS220PPROH1A

Application Scenarios

The IS220PDIAH1A is designed for applications requiring fast and reliable discrete signal handling:

Gas and steam turbine control systems
Power generation and energy management systems
Oil & gas processing facilities
Industrial production lines and automation systems
Safety interlock and alarm systems

Its ability to simultaneously monitor inputs and drive outputs makes it especially valuable in coordinated control environments where timing and accuracy are critical.

Key Advantages

Integrated I/O Design – Combines input and output functions, reducing hardware footprint
High-Speed Performance – Fast response ensures real-time system feedback
Reliable Signal Integrity – Built-in isolation protects against electrical noise and faults
Dual Ethernet Connectivity – Enhances redundancy and communication stability
Industrial Durability – Operates reliably across wide temperature ranges
Flexible Integration – Compatible with various GE terminal boards and system architectures

Technical FAQs

1. What is the primary function of IS220PDIAH1A?
It handles discrete (digital) input monitoring and output control within a Mark VIe system.

2. How many input and output channels does it provide?
Typically 16 digital inputs and 8 relay outputs.

3. What voltage level do the inputs support?
Standard 24 V DC industrial signals.

4. Does the module support redundant communication?
Yes, it includes dual Ethernet ports for redundancy.

5. What is contact wetting voltage?
It provides 32 V DC to maintain reliable contact signals and prevent oxidation.

6. Is the module suitable for harsh environments?
Yes, it operates between -30°C and +65°C.

7. Can it be used in turbine control systems?
Yes, it is widely used in GE Speedtronic turbine control applications.

8. What type of outputs are used?
Relay-based outputs suitable for industrial loads.

9. Does it provide electrical isolation?
Yes, each channel includes galvanic isolation for system protection.

10. What makes this module a strong choice for engineers?
Its combination of integrated I/O, fast response, robust design, and seamless Mark VIe integration ensures dependable long-term performance.

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