Product Overview
The GE IS420UCSCH1B is a quad-core controller designed for the Mark VIe Series, serving as a UCSC gateway stand-alone controller. It operates on a 1.2 GHz AMD G-Series processor with four cores, delivering high-speed, reliable performance for industrial automation. This controller is the main controller referenced in the GEH-6855 Volume II manual and supports real-time hypervisor technology with a QNX Neutrino multi-tasking operating system.
With 2 GB DDR3-1066 SDRAM with ECC, the IS420UCSCH1B ensures data integrity in demanding environments. It features six Ethernet ports—five on the front panel and one on the bottom for Predix connectivity—enabling robust network integration. The controller supports simplex and dual redundancy configurations, making it suitable for critical applications where uptime is paramount.
Technical Specifications
| Parameter |
Value |
| Part Number |
IS420UCSCH1B |
| Product Family |
Mark VIeS Functional Safety System |
| Product Name |
UCSC Gateway Stand-Alone Controller |
| Manufacturer |
GE Vernova |
| CPU Frequency |
1.2 GHz |
| CPU Cores |
4 |
| Memory Type |
2 GB DDR3-1066 SDRAM with ECC |
| NVSRAM |
3067 Nonvolatile Program Variables, 64 Totalizers, 338 Forces |
| Ethernet Ports |
6 (5 front, 1 bottom for Predix) |
| Redundancy Configurations |
Simplex, Dual |
| Altitude for Normal Operation |
0-1000 m at 101.3 to 89.9 kPa |
| Storage Temperature |
-40 to 85°C (-40 to 185°F) |
| Dimensions (with Mounting) |
H 8.03 in x D 5.99 in x W 2.17 in |
| HMI |
ControlST V07.00.00C or Later |
| Surge Protection |
Non-replaceable 4 A 125 V dc fuse; Nominal melting 26 A² sec |
| QNX Version |
6.5 or 7.1 |
| Orientation Capability |
Vertical |
| Cooling Type |
Convection |
| Country of Origin |
Assembled in the USA |
Key Features & Benefits
-
High-Performance Processing: 1.2 GHz quad-core CPU with ECC memory ensures fast and reliable control logic execution.
-
Advanced Connectivity: Six Ethernet ports support diverse networking needs, including Predix cloud connectivity.
-
Redundancy Ready: Simplex and dual configurations allow system designers to balance cost and availability.
-
Robust Data Retention: NVSRAM preserves critical variables, totalizers, and forces during power loss.
-
Wide Environmental Tolerance: Operates at altitudes up to 1000 m and stores safely from -40 to 85°C.
Applications
The IS420UCSCH1B excels in high-speed, high-reliability industrial applications, particularly in turbine control and balance-of-plant (BoP) management. Its real-time hypervisor and QNX Neutrino OS make it ideal for processes requiring deterministic response. Typical use cases include:
- Gas and steam turbine control systems
- Power generation plant automation
- Industrial process control with redundant architecture
- Predix-enabled remote monitoring and analytics
Installation & Setup
Mount the IS420UCSCH1B vertically in a suitable enclosure. The controller uses convection cooling, so ensure adequate airflow around the module. Connect Ethernet ports according to your network architecture: the bottom port is reserved for Predix connectivity. For initial configuration, use the ToolboxST application on a 4 GB unencrypted flash drive to set the UDH network IP address. The default IP is 192.168.101.111; adjust it to match your site's network scheme. For detailed instructions, refer to the GEH-6855 manual.
Maintenance & Reliability
Routine maintenance is minimal due to the convection-cooled, solid-state design. Periodically verify that the surge protection fuse is intact and check for dust accumulation on the enclosure vents. The controller's ECC memory and NVSRAM ensure data integrity, reducing the risk of corruption. With a wide storage temperature range, the module can be kept as a spare without degradation. For long-term reliability, ensure the operating environment stays within the specified altitude and temperature limits.
Compatibility & Integration
The IS420UCSCH1B integrates seamlessly with Mark VIe systems, supporting EFA, Embedded EtherCAT, and Embedded PPNG features. It communicates via IONet interfaces for I/O modules and supports Modbus TCP Slave, OPC UA, and EGD/UDH protocols for broader system integration. The controller works with ControlST HMI software and can interface with GE PACSystems products. For safety applications, it pairs with the UCSCS2A Safety controller.
Selection Guide
Before purchasing, verify that the IS420UCSCH1B meets your system's redundancy requirements (simplex or dual) and that your network infrastructure supports the required Ethernet ports. Ensure your HMI software is ControlST V07.00.00C or later. PLC Source PRO offers this controller with a 3-7 day repair turnaround and in-stock availability, making it a reliable source for your automation spares.