IS420UCSBH4A GE UCSB CONTROLLER MODULE, 1066 MHZ

Description:

IS420UCSBH4A is a UCSB Controller Module developed by GE. UCSB controllers are self-contained computers that execute application-specific control system logic. The UCSB controller does not host any application I/O, unlike traditional controllers that do. Furthermore, all I/O networks are connected to each controller, providing it with all input data. If a controller is powered down for maintenance or repair, the hardware and software architecture ensures that no single point of application input is lost.

Operation
The controller is pre-loaded with application-specific software. It is capable of running rungs or blocks. Minor changes to the control software can be made online without restarting the system.
The IEEE 1588 protocol is used to synchronize the clocks of the I/O packs and controllers to within 100 microseconds via the R, S, and T IONets. External data is transferred to and from the controller's control system database via the R, S, and T IONets. Process inputs and outputs to I/O modules are included.
This also includes the following in a dual system:
The designated controller's internal state values and initialization information
The status and synchronization information from both controllers
This also includes the following in a Triple Modular Redundant (TMR) system:
Internal state values for voting and status, as well as synchronization information from all three controllers
Data from the designated controller for initialization

Datasheet Link:

IS420UCSBH4A GE UCSB CONTROLLER MODULE Datasheet General Electric