Description
The GE IS220PDIAH1B is a Discrete Input I/O Pack (PDIA) belonging to the Mark VIe control system family. It is a high-performance, compact module that interfaces between the control network (IONet) and the terminal boards to process digital input signals from field devices.
Product Parameters (Datasheet)
- Model Number: IS220PDIAH1B
- Series: Mark VIe Speedtronic
- Module Type: Discrete Input (DI) Pack
- Input Channels: 24 channels (Contact inputs)
- Input Type: Dry contact or 24/125 V DC voltage-sensing (depending on terminal board)
- Communication: Dual 100 Mbps Ethernet ports (IONet)
- Scanning Rate: Up to 1 ms (Sequence of Events/SOE capable)
- Processor: High-speed 32-bit RISC processor
- Isolation: Optical isolation between field signals and internal logic
- Operating Temperature: -30°C to +65°C (-22°F to +149°F)
GE IS220PDIAH1B
GE IS220PDIAH1B
GE IS220PDIAH1B
Country of Origin
This I/O pack is designed and manufactured by General Electric (GE) in the USA. It represents the modern “Distributed I/O” architecture of the Mark VIe platform.
Application Fields
The IS220PDIAH1B is used in sophisticated turbine and plant-wide control systems:
- Gas & Steam Turbines: Monitoring discrete states such as limit switches, oil levels, and pressure switches.
- Emergency Shutdown (ESD): Capturing high-speed safety trip signals with 1ms resolution for root-cause analysis.
- Generator Control: Monitoring circuit breaker statuses and protection relay contacts.
- BOP (Balance of Plant): Managing auxiliary equipment status for pumps, fans, and compressors.
- Process Automation: General-purpose digital input sensing in rugged industrial environments.
Product Usage Instructions
- Mounting: The PDIA pack is designed to be plugged directly into the D-type connectors of a compatible Mark VIe terminal board (e.g., TBCI, TDBT, or STCI).
- Networking: Connect the dual RJ45 ports to the IONet switches. The dual ports allow for redundant network paths to the controller.
- Configuration: Use ToolboxST software to configure the input point attributes (e.g., inversion, SOE latching, and diagnostic thresholds).
- Addressing: The module is automatically addressed through the network based on its electronic ID and the hardware configuration in the software.
- Grounding: Ensure the terminal board to which the pack is attached is properly grounded to the cabinet frame to ensure transient protection.
Product Technical Description
The IS220PDIAH1B represents a significant shift from the legacy Mark VI rack-based cards. It is a “smart” module that performs all signal conditioning and digitization locally at the terminal board. Technically, the module contains its own power supply, processor, and Ethernet controller. When a contact closes in the field, the PDIA pack timestamps the event at a 1ms resolution, a feature known as Sequence of Events (SOE). This data is then transmitted over the redundant IONet to the controllers. The “H1B” revision features a ruggedized casing and enhanced environmental protection, including a conformal coating to withstand corrosive gases and moisture.
Q&A (Common Questions)
- Q: Can I use this pack in a TMR (Triple Modular Redundant) configuration?
- A: Yes. In a TMR setup, three PDIA packs are attached to a TMR terminal board (like the TBCI), and the signals are voted on by the controllers.
- Q: What do the LEDs on the front of the pack indicate?
- A: The Power LED indicates DC health, the Online LED shows communication status with the controller, and the Fault LED alerts to hardware or configuration issues.
- Q: Does this pack support 125 V DC inputs?
- A: The pack itself handles the logic; the voltage level (24V or 125V) is determined by the specific terminal board and field power supply being used.
- Q: Is it hot-swappable?
- A: Yes, Mark VIe I/O packs are designed for hot-swapping. When a new pack is plugged in, the controller automatically downloads the correct configuration and firmware to it.
Similar Model Recommendations
- GE IS220PDOAH1B: Discrete Output (DO) I/O Pack.
- GE IS220PAICH1B: Analog Input (AI) I/O Pack.
- GE IS220PTCCH1B: Thermocouple (TC) I/O Pack.
- GE IS200TBCIH1B: Compatible Discrete Input Terminal Board (TMR).
- GE IS220PPDAH1B: Power Distribution I/O Pack.
For more information or to request a quote for the GE IS220PDIAH1B, please contact our technical sales team.
