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IS420UCSBH1A GE Module Parts Mark VIe UCSB Controller Module
The GE IS420UCSBH1A is a Universal Control System (UCSB) controller module designed for the GE Mark VIe distributed control system. It is also used in compatible EX2100e excitation control and LS2100e load commutated inverter control applications.
The module is based on a 600 MHz Intel EP80579 processor and runs the QNX Neutrino real-time operating system. It executes control logic, manages communication with distributed I/O modules, and coordinates industrial control operations.
The IS420UCSBH1A uses Ethernet-based IONet communication to connect with Mark VIe I/O modules. Its compact design, multiple network interfaces, and support for redundant control architectures make it suitable for critical power generation and industrial automation applications.
It is commonly used in gas turbine control, steam turbine control, generator excitation, and other industrial process control systems.
| Parameter | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS420UCSBH1A |
| Product Type | UCSB Controller Module |
| Product Series | Mark VIe |
| Compatible Systems | Mark VIe, EX2100e, LS2100e |
| Functional Acronym | UCSB |
| Processor | Intel EP80579 |
| Processor Frequency | 600 MHz |
| System Memory | 256 MB DDR2 SDRAM with ECC |
| Flash Storage | 2 GB NAND Flash |
| Operating System | QNX Neutrino RTOS |
| Primary Ethernet | 10/100Base-TX |
| Secondary Ethernet | 10/100Base-TX |
| IONet Interfaces | 3 × 10/100Base-TX RJ45 |
| Serial Interface | RS-232 |
| Control Power | 18–32 VDC |
| Nominal Power Supply | 24–28 VDC |
| Maximum Current | 1.1 A at 28 VDC, per GE instruction guide |
| Power Consumption | Approximately 15.6 W nominal |
| Cooling | Convection cooling, fanless |
| Battery | No battery required |
| Redundancy | Simplex, Dual, or TMR system configurations |
| Operating Temperature | -30°C to +65°C |
| Humidity | 5–95%, non-condensing |
| Mounting | Panel-mounted controller |
| Communication | Ethernet / IONet |
Executes industrial control applications and processes real-time operating data for turbine and power generation systems.
Provides three dedicated Ethernet IONet interfaces for communication with distributed Mark VIe I/O modules.
Receives input data from connected I/O modules and distributes control commands to output devices.
Supports Simplex, Dual, and Triple Modular Redundant (TMR) control architectures, depending on system configuration.
Provides Ethernet connectivity for communication with HMIs, engineering workstations, other controllers, and supervisory systems.
Uses front-panel LED indicators to monitor power, boot status, communication, online operation, and diagnostic conditions.
The GE IS420UCSBH1A is a UCSB controller module designed for the Mark VIe industrial control system.
It uses a 600 MHz Intel EP80579 embedded processor.
It features 256 MB DDR2 SDRAM with ECC and 2 GB NAND flash storage.
The controller uses the QNX Neutrino real-time operating system.
It provides five Ethernet interfaces: two control network ports and three dedicated IONet ports.
GE Module Parts UCSB Controller
,Mark VIe UCSB Controller Module
,IS420UCSBH1A GE Controller Module
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