Description
IS420UCSBH4A – UCSB Controller Module is available in stock which ships the same day.
IS420UCSBH4A – UCSB Controller Module comes in UNUSED as well as REBUILT condition.
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IS420UCSBH4A Other names:
Switch IS420UCSBH4A
Control system module IS420UCSBH4A
Editable controller IS420UCSBH4A
Product Description
Controller IS420UCSBH4A is another UCSB controller produced by General Electric for the Mark VIe series. According to the description, the controller can operate on the EX2100e, LS2100e, and Mark VIe series running on the 1066 MHz EP80579 Intel processor. The EP80579 processor is used to assist applications that require high reliability and speed. This model is similar to previous UCSB controllers, except for the processors mentioned above, which all use the same processor type but run on different MHz.
The IS420UCSBH4A controller is similar to the UCSC controllers in the Mark VIe series. The difference between these controllers lies in their hardware, but they do have some similarities in terms of controller advantages. Some advantages of the controller are that it is a single module and has flash memory, which can be easily updated according to the needs of users. The location and certification required to operate this controller are the same as the previous model. The controller can be used in hazardous and non hazardous areas and has UL E207685 and UL DEMKO 12 ATEX 1114875X certifications. All information about the location and required authentication can be obtained from the GEH-6725 Mark VIe/VIeS Control Equipment HazLoc Instruction Guide on page 112.
The UCSB Controllers offer the Following Advantages:
Single module
Built-in power supply
No jumper settings required
No battery
No fan (UCSBSIA, UCSBHIA, UCSBH4A)
Dual-redundant fans with IS420UCSBH3A
Smaller panel footprint
Flash memory can be conveniently updated
UCSB INSTALLATION:
A single module that installs directly to the sheet metal of the panel contains the controller. The dimensions for the module envelope and mounting are shown in the diagrams below. Every measurement is in inches. The UCSB must be attached to the panel as depicted, with the vertical airflow through the fins remaining unhindered.
UCSB SOFTWARE AND COMMUNICATION:
Software customized for the controller’s use is installed. Rungs or blocks can be run by it. Without needing to restart, small changes to the control software can be done online. The clocks of the 1/O packs and controllers are synchronized to within 100 microseconds using the IEEE 1588 protocol via the R, S, and T IONets. Through the R, S, and T IONets, external data is sent to and received from the control system database in the controller. This comprises the 1/0 modules’ process inputs and outputs.
Additionally, in a dual system, these are:
1. Data on initialization and internal state variables from the selected controller
2. Information on the synchronization and status of both controllers
This also covers the following in a triple modular redundant (TMR) system:
Information on synchronization from all three controllers, internal state values for voting, and status
Initialization data from the chosen controller
UCSB BOOT LED:
In the absence of a mistake, the boot LED remains on throughout the boot process. The LED will blink once per second (Hz) if an error is found. The LED blinks for 500 milliseconds, then goes off. The LED stays off for three seconds after the flashing phase. Flash count reveals failed condition.
The boot LED flashes continuously at a Hz rate if the flash image is genuine but the runtime firmware has not yet been loaded. The firmware loads and the boot LED goes off. Use the ToolboxST app to find out why the controller is blocked if it won’t connect online. After receiving an IP address, ToolboxSTplication configures itself over Ethernet.
FREQUENTLY ASKED QUESTIONS:
What is IS420UCSBH4A?
It’s a high-performance UCSB Controller Module with a 1066 MHz Intel EP80579 microprocessor.
What is a UCSB Controller?
The UCSB controller is a single-board, stand-alone processor with scalable processing power. There are no batteries or jumper settings required because it has a built-in power supply.
What is the application of the module?
The module allows interoperable redundant configurations that incorporate many platform types into a single redundant set.
What is the operating temperature of the component?
The operating temperature ranges from 22 to 149 degrees Fahrenheit.
Reviews For IS420UCSBH4A
The IS420UCSBH4A controller can be used in this Mark VIe control system as well as EX2100e and LS2100e system applications. This controller can also be used in high-speed applications.
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admin –
Controller IS420UCSBH4A is another UCSB controller produced by General Electric for the Mark VIe series. According to the description, the controller can operate on the EX2100e, LS2100e, and Mark VIe series running on the 1066 MHz EP80579 Intel processor. The EP80579 processor is used to assist applications that require high reliability and speed. This model is similar to previous UCSB controllers, except for the processors mentioned above, which all use the same processor type but run on different MHz.
admin –
Model: IS420UCSBH4A Full Name: UCSB Universal Control System Blade Platform: Mark VIe / Mark VIeS Brand: GE Vernova (formerly GE Power) Positioning: Core computing controller (CPU blade) for turbine control systems, main control unit for gas turbines/steam turbines, capable of forming a TMR triple-redundant control architecture, and working collaboratively with the IS220PPRAS1B (ETS overspeed protection I/O) you previously inquired about via IONet networking.
I. Core Hardware Specifications
Processor: Intel EP80579, 1066MHz
Memory: 256MB DDR2 ECC error-correcting memory
Local Storage: Onboard NAND Flash, no built-in battery design
Operating System: QNX Neutrino hard real-time RTOS
Power Supply: Nominal DC24V; Peak power consumption 28.7W, typical 17.3W
Cooling: Passive fanless heatsink
Operating Temperature: -30℃ ～ +65℃
Certifications: UL Class I Div 2, CE, suitable for hazardous areas in power plants
II. Panel Interfaces (Standard 5-channel RJ45)
IONet A / IONet B (dual redundant I/O bus) connects to all Mark VIe I/O Packs: IS220 series (PPRAS1B, PPROS, AI/DI/DO cards), proprietary real-time industrial Ethernet, IEEE1588 clock synchronization
ECN A/ECN B (External Control Network) connects to HMI, Engineer Station ToolboxST, DCS, and Historical Server.
SERV: Local debugging port (engineers connect directly to download programs and perform diagnostics).
Architectural Features: Distributed I/O, independent of backplane bus; controllers and I/O modules are networked remotely via network cables.
III. Main Functions
Control Logic Operation Core: Executes gas turbine/steam turbine speed regulation, load control, start-up sequence, fuel control, and excitation coordination (with EX2100e); handles OPC and interruption interlocking logic.
TMR Triple Redundancy Control: Three IS420UCSBH4A modules are installed in the cabinet for parallel operation and two-out-of-three voting; seamless switching in case of single controller failure avoids erroneous operation/failure to operate.
IONet Network Management: Polls and collects data from all I/O modules, issues output commands, and continuously diagnoses I/O card disconnections and hardware faults (such as IS220PPRAS1B speed channel fault reporting).
SOE event sequence recording, trend acquisition, and alarm management.
System hardware self-diagnosis: Monitoring the health status of CPU, memory, network links, and I/O communication; uploading fault codes to the HMI.
Cross-system communication: Supports Modbus TCP and GE SRTP protocols for data exchange with the plant-level DCS.
IV. Typical Application Scenarios
Heavy-duty gas turbines (9E/9F/9HA), steam turbines, and combined cycle units main control
EX2100e excitation control system main controller
Matching IS220PPRAS1B overspeed protection I/O, forming a complete steam turbine/gas turbine protection chain
Mark VIeS safety-related controls (SIL2/SIL3 system-level applications)
V. Version Differentiation and Spare Parts Interchange (Maintenance Focus)
Sequential Versions within the Same Series
IS420UCSBH1A / H3A: Earlier versions (600MHz) with lower computing power
IS420UCSBH4A: 1066MHz version with enhanced computing power, used for complex large-scale units and multi-point I/O projects
Interchange Notes
H4A is backward compatible, but the ToolboxST firmware version must match; direct connection is highly likely to result in a Hardware Mismatch report.
IS420UCSBH4A ≠ UCSE series (IS420UCSExxxx) hardware slots are not interchangeable and cannot be mixed.
Suffixes 4A, 4B, and 4C indicate minor hardware iterations and are generally interchangeable within the same project (preferably with the same suffix).
VI. System Hierarchy with IS220PPRAS1B (previously listed)
Three IS420UCSBH4A units (main controller TMR)
↕ IONet Dual Network
Three IS220PPRAS1B units (triple redundancy overspeed protection I/O, MPU speed acquisition, hardware interruption output). The UCSB is responsible for the entire unit’s regulation logic; the PPRA I/O is responsible for independent hardware-level overspeed backup protection, forming a dual-layer protection system of regulation system + independent safety protection. VII. Common Fault Phenomena: SERV/IONet light flashing abnormally: Network cable or switch IS420ESWBHxx fault. Controller Fault light constantly on: Firmware incompatibility, ECC memory error, Flash corruption. I/O Comm Loss: Communication interruption with IS220PPRAS1B; check IONet link and TREA terminal block.
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