IS420UCSBH1A GE PLC Module for Automation Systems

Description

TheGE IS420UCSBH1Ais aUniversal Control Subsystem Board (UCSB)designed for theMark VIe Speedtronic turbine control system. It functions as acentral processing unit (CPU)for executing turbine control logic, managing protective functions, and coordinating communication with distributed I/O modules. Unlike traditional PLCs, theIS420UCSBH1Adoes not host I/O directly. Instead, it communicates withI/O packsoverIONet, a dedicatedEthernet-based network. This architecture ensureshigh reliability,redundancy, andprecise synchronizationacross turbine control systems.