Description
- Model & Brand: GE IS220PDOAH1B
- Functional Designation: PDOA
- Product Family: GE Mark VIe Control
- Part Type: Discrete Output I/O Pack
- Primary Function: Drives and monitors up to 12 relay outputs through a compatible Mark VIe relay terminal board.
- Nominal Pack Supply: 28 VDC
- Reported Input Current: Approximately 0.18 A maximum.
- Output Channels: 12 discrete relay-control channels
- Network Interface: 2 × 10/100 Mbps RJ-45 Ethernet ports
- Field Interface: DC-37 connector to the terminal board
- Local Service Interface: Infrared serial interface
- Approx. Dimensions: Approximately 82.6 H × 41.9 W × 121 D mm according to current secondary inventory data.
- Estimated Net Weight: Approximately 0.4–0.5 kg
- Estimated Shipping Weight: Approximately 0.7–1.0 kg with ESD protection, cushioning, and export carton.
- Associated Terminal Boards: IS200TRLYH2E, IS200TRLYH3E, IS200TRLYH1F, IS200TRLYH2F, IS200SRLYH1A, IS200SRLYH2A, and specified later-generation equivalents.
- What’s in the Box: IS220PDOAH1B I/O pack unless the purchase order explicitly includes the relay terminal board, mounting hardware, Ethernet cables, or field connectors.
- Receiving Control: Record the exact IS220PDOAH1B designation, revision, serial/date information, and matched terminal-board type.
GE’s lifecycle documentation identifies IS220PDOAH1B as the replacement for IS220PDOAH1A, while the Mark VIe hazardous-location documentation separately defines the terminal-board combinations approved with the B revision.
Product Introduction
The GE IS220PDOAH1B mounts directly onto the Mark VIe relay terminal board and forms the active electronics interface between IONet and the field-side relay circuitry. Its principal task is discrete output control: the pack can command up to 12 relays, with the associated terminal-board architecture providing the physical field interface. This makes the PDOA a control-output asset rather than a generic digital-output PLC card.
For lifecycle control, the B revision should remain part of the stock identity. GE’s documented product migration lists IS220PDOAH1A → IS220PDOAH1B, and the B revision has a broader approved terminal-board set than the earlier A revision. That distinction is especially important for hazardous-location installations, where the certified combination—not just the module number—determines whether the installation remains within its approval basis.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | General Electric |
| Product Family | Mark VIe |
| Model | |
| Functional Acronym | PDOA |
| Hardware Revision | B |
| Product Type | Discrete Output I/O Pack |
| Output Channels | 12 relay-control channels |
| Output Function | Discrete relay actuation |
| Nominal Pack Supply | 28 VDC |
| Reported Maximum Input Current | Approx. 0.18 A |
| Ethernet Ports | 2 × 10/100 Mbps RJ-45 |
| Field Interface | DC-37 |
| Local Diagnostic Interface | Infrared serial |
| Associated Terminal Boards | TRLYH2E, TRLYH3E, TRLYH1F, TRLYH2F, SRLYH1A, SRLYH2A, plus specified later-generation boards |
| Network Architecture | Simplex, redundant, or TMR Mark VIe arrangements |
| Processor Function | Mark VIe distributed-I/O processing |
| Relay Monitoring | Output/relay status monitoring supported in the PDOA architecture |
| Approx. Dimensions | 82.6 × 41.9 × 121 mm |
| Approx. Net Weight | 0.4–0.5 kg estimated |
| Estimated Shipping Weight | 0.7–1.0 kg |
| Lifecycle Position | Legacy / Availability-Dependent |
GE’s Mark VIe equipment documentation explicitly identifies the as a discrete-output module and specifies the terminal-board combinations for its certified installation.
A caution for warehouse data: some secondary listings describe this product with inconsistent output-current and channel specifications. The 12-relay output function and the GE-approved terminal-board relationships are better-established and should take precedence over unsupported reseller figures.
GE IS220PDOAH1B
Global Compliance & Industry Certifications
The has documented hazardous-location application evidence, but the certification applies to defined I/O-pack/terminal-board combinations.
- CE Mark: Verify the applicable Mark VIe Declaration of Conformity and hardware revision before recording CE status.
- UL/cUL: Do not mark the loose PDOA as UL/cUL Listed without the applicable GE certification record.
- ATEX: GE documentation specifically identifies with approved TRLY/SRLY terminal-board combinations for hazardous-location applications.
- IECEx: The Mark VIe hazardous-location documentation also covers PDOAH1B in the specified certified assembly.
- Hazardous Location: The published certification framework covers defined Zone 2 / Class I, Division 2-type applications, subject to the exact equipment marking, temperature classification, wiring, enclosure, and installation conditions.
- Marine / DNV: No standalone DNV approval was established for the individual .
- Functional Safety: Do not confuse standard PDOAH1B with the Mark VIeS YDOAS safety-output architecture. GE documents these as separate product families.
The terminal-board limitation is not paperwork trivia. For an ATEX installation, using a non-approved board or configuration can invalidate the certification basis and create a plant safety and audit issue.
Verify specific lot certifications with OEM.
Long-Term Storage & Asset Preservation Guide
Keep the PDOAH1B inside its original ESD shielding bag. Protect the DC-37 interface, twin RJ-45 ports, power connector, and mounting studs from impact and conductive contamination.
Maintain warehouse humidity below 60% RH where practical. Although industrial equipment can tolerate higher non-condensing humidity during operation, controlled dry storage provides better protection for connector surfaces during multi-year shelf periods.
Preserve the matched terminal-board record. The B revision has specific approved TRLY/SRLY combinations. Store the terminal-board compatibility with the module’s ERP record (especially for hazardous-area spare inventory).
Do not repeatedly energize shelf stock without a defined test procedure. Routine preservation should be visual, documented, and ESD-controlled. Functional testing belongs in a controlled Mark VIe test setup where output loads and relay interfaces can be verified safely.
Physical Installation Prerequisites
The is an I/O pack that mounts directly onto a compatible discrete-output relay terminal board. It is not a conventional rack-mounted PLC output card.
Terminal-board match: Verify the exact installed board. GE lists TRLYH2E, TRLYH3E, TRLYH1F, TRLYH2F, SRLYH1A, SRLYH2A, and specified later-generation boards for PDOAH1B.
Mechanical interface: Seat the pack squarely on the terminal board and tighten the retaining hardware evenly. Do not use the DC-37 connector to force alignment.
Power: Provide the specified 28 VDC nominal pack supply and verify polarity and protection before energization. A current secondary specification reports approximately 0.18 A maximum input current.
Cooling: Preserve the Mark VIe cabinet airflow around the I/O pack and terminal board. Do not impose an arbitrary 50 mm clearance where the cabinet design specifies another spacing.
Ethernet: Maintain ENET1/ENET2 assignments in accordance with the Mark VIe network architecture. In redundant or TMR systems, accidental network crossover can complicate diagnosis.
Relay wiring: Confirm each terminal-board channel against the approved wiring diagram before re-energizing field outputs. A wrong relay landing can activate the wrong external device.
Grounding: Maintain the Mark VIe protective-earth and signal-shielding arrangement. Do not use relay or field-return conductors as substitute protective-earth paths.
Hazardous-area installations: Retain the exact certified PDOAH1B/terminal-board combination and associated installation restrictions. Certification does not transfer to arbitrary substitutions.
Buyer’s FAQ — Logistics & Compliance Focus
Q: What HS Tariff Code should I use for ?
A: A classification under HS 8538.90 is a reasonable candidate for a specialized output module used with electrical control equipment. The final national tariff code must be validated against the destination country’s tariff schedule and customs interpretation. Describe the item precisely as a GE Mark VIe Discrete Output I/O Pack, PDOA, 12 relay-control channels.
Q: What Country of Origin should appear on the commercial invoice?
A: Use the actual manufacturing origin supported by the physical label or GE traceability documentation. Do not use the seller’s warehouse location. Some secondary inventory records report USA, but lot-specific evidence should control the formal COO declaration.
Q: Should I insure one PDOAH1B for international shipment?
A: Yes for a production-critical turbine-control installation. The module is relatively light, generally around 0.4–0.5 kg before packaging, but failure can disable multiple relay-controlled functions. Use ESD shielding, rigid cushioning around the connectors and mounting points, tracking, and cargo insurance based on the documented replacement value.
Q: Does the include the latest firmware pre-loaded?
A: Do not assume that. The is an intelligent I/O pack, so its behavior depends on the Mark VIe software and I/O configuration environment. The correct acceptance check is hardware revision, I/O application compatibility, terminal-board pairing, and system software support—not merely a supplier statement that it has the “latest firmware.”
Q: Can I substitute IS220PDOAH1A for ?
A: Do not make an uncontrolled substitution. GE’s lifecycle record identifies IS220PDOAH1A as obsolete and as the replacement, while the B revision has a defined terminal-board compatibility set. Verify the complete installed configuration before release.
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