Description
🔹 Product Description
The GE General Electric IS220PDIAH1A REV. B is a Discrete Input I/O Pack designed for GE Mark VIe distributed control systems. The PDIA pack provides the electrical interface between one or two I/O Ethernet networks and a compatible discrete input terminal board. It combines a common Mark VIe I/O processor board with a discrete-input acquisition board and can accept up to 24 contact inputs. The module communicates through dual Ethernet connections and interfaces with the terminal board through a DC-37 connector. Compatible terminal boards include IS200STCIH1A, IS200STCIH2A, IS200STCIH8A, IS200TBCIH2C, and IS200TBCIH4C.
🔹 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | GE General Electric |
| Model | IS220PDIAH1A REV. B |
| Series | Mark VIe |
| Product Name | Discrete Input I/O Pack |
| Functional Type | 24-Channel Discrete Input Module |
| Product Status | New / New Surplus |
| Dimensions | Approx. 18 × 18 × 6 cm; verify actual unit |
| Weight | Approx. 0.8 kg |
| Origin | USA |
| Power | 28 VDC nominal |
| Discontinued | Legacy product; verify system compatibility |
🔹 Common Questions & Answers
Q: What is the IS220PDIAH1A used for?
A: It is used to acquire discrete contact signals and transfer the collected input data to the Mark VIe control system through the I/O Ethernet network.
Q: How many input channels does it support?
A: The PDIA I/O Pack supports up to 24 discrete contact inputs.
Q: Which terminal boards are compatible with the IS220PDIAH1A?
A: GE documentation identifies IS200STCIH1A, IS200STCIH2A, IS200STCIH8A, IS200TBCIH2C, and IS200TBCIH4C as compatible terminal boards for the IS220PDIAH1A.
Q: How does the I/O Pack communicate with the control system?
A: It uses one or two I/O Ethernet network connections through dual RJ45 Ethernet interfaces.
Q: What connector connects the I/O Pack to the terminal board?
A: Discrete field signals are connected through a DC-37 interface between the I/O Pack and its associated terminal board.
Q: What power supply does the module use?
A: Mark VIe I/O packs use a nominal 28 VDC supply; the referenced GE documentation specifies approximately 27.4 to 28.6 VDC for the applicable I/O-pack power supply.
Q: Can this module be used with different input voltage levels?
A: The supported input voltage depends on the selected terminal-board configuration. Mark VIe documentation lists different PDIA terminal-board configurations for applications including 24 VDC, 48 VDC, 125 VDC, and other specified input arrangements.
Q: Is REV. B interchangeable with REV. A?
A: Do not assume automatic interchangeability. Verify the complete catalog number, hardware revision, terminal board, system configuration, and application requirements before replacement.
Q: What should be checked if a discrete input is not detected?
A: Check the field contact, input voltage, terminal-board wiring, DC-37 connection, I/O Pack power, Ethernet link status, diagnostic LEDs, and controller configuration.
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- IS200STCIH1A — Discrete Input Terminal Board
- IS200STCIH2A — Discrete Input Terminal Board
- IS200STCIH8A — Discrete Input Terminal Board
- IS200TBCIH2C — Discrete Input Terminal Board
- IS200TBCIH4C — Discrete Input Terminal Board
