{"product_id":"mark-vie-discrete-output-i-o-pack-is220pdoah1a-ge","title":"Mark VIe Discrete Output I\/O Pack IS220PDOAH1A GE","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGE IS220PDOAH1A (PDOA)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-density Discrete Output I\/O Pack within the Mark VIe Distributed Control System (DCS). This module provides the essential interface between the turbine controller and field-side end elements, controlling up to 12 or 24 discrete outputs depending on the associated terminal board. It receives digital commands via the dual-redundant IONet and actuates solenoid valves, motor starters, and pilot lights with millisecond precision. We supply this unit as a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecomponent. By integrating advanced voting logic and hardware-level diagnostics, the PDOAH1A ensures that critical control actions occur reliably, preventing false trips and minimizing unplanned downtime in utility-scale power plants.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral Electric (GE)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIS220PDOAH1A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eControl Series\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMark VIe Speedtronic\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDiscrete \/ Relay Driver\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 24 Channels (Board dependent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual 10\/100 Mbps Ethernet (IONet)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProcessor Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRISC Embedded Processor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18 to 32 VDC (Nominal 28 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-30 to 65 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage\/Current Feedback \u0026amp; Fuse Monitoring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New Original\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTMR Control and Voting Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe IS220PDOAH1A supports Triple Modular Redundancy (TMR) architectures. In a TMR configuration, three independent PDOA packs receive data from the R, S, and T controllers and perform hardware-level voting on the terminal board. This \"two-out-of-three\" logic ensures that a single module failure never triggers an accidental turbine shutdown.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Load Integrity Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis pack does not merely \"fire and forget.\" It continuously monitors the health of each output circuit by measuring the voltage and current at the load. It detects open circuits, short circuits, and stuck relay conditions immediately, reporting these faults back to the ToolboxST™ software for predictive maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardware-Synchronized Execution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe PDOA utilizes a high-speed RISC processor to synchronize its output states with the controller heartbeat. This eliminates \"chatter\" and ensures that complex sequencing—such as turbine startup or emergency load shedding—occurs with strict temporal deterministic accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAggressive Environmental Hardening:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGE engineers designed the H1A revision to thrive in the harsh electromagnetic and thermal conditions of a turbine enclosure. The module features integrated transient voltage suppression (TVS) and operates within a broad temperature range of -30 to 65 Celsius without requiring external cooling fans.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal boards are compatible with the IS220PDOAH1A?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PDOA pack typically mates with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTDOA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Discrete Output) and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTRLY\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Relay Output) terminal boards. The specific board selection determines whether the pack drives external 24 VDC loads directly or interfaces with dry-contact relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do the diagnostic LEDs indicate status?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe front panel includes a multi-color LED array. A flashing green light indicates a synchronized IONet connection. A solid amber or red light signifies a \"Fault\" or \"Status\" error, such as a blown fuse on the terminal board or an internal hardware mismatch.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module a direct replacement for earlier PDOA revisions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The IS220PDOAH1A is backward compatible with systems using older Mark VIe hardware. However, always verify that your system’s firmware and ToolboxST™ version support the H1A revision to ensure all diagnostic features function correctly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require field calibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. As a discrete (on\/off) device, the IS220PDOAH1A does not require analog calibration. It performs self-diagnostics upon power-up to verify internal logic integrity and relay driver health.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":53469649141944,"sku":"IS220PDOAH1A","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/IS220PDOAH1AGE_1.jpg?v=1778836801","url":"https:\/\/www.globalpetroparts.com\/products\/mark-vie-discrete-output-i-o-pack-is220pdoah1a-ge","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}