Foxboro CP30P0960AW CONTROL PROCESSOR

Foxboro CP30P0960AW CONTROL PROCESSOR

Description

The Control Processor 30 (CP30) performs regulatory, logic, timing, and sequential control, together with connected:

• Fieldbus Modules (FBMs)
• Fieldbus Cluster I/O Cards (FBCs)
• SPECTRUM Migration Integrator I/O
• SPEC 200 Migration Integrator I/O
• SPEC 200 MICRO Migration Integrator I/O

It also performs data acquisition and alarm detection and notification, and may optionally serve as an interface for one or more Panel Display Stations.

The non-fault-tolerant version of the Control Processor 30 is a single-width processor module. The fault-tolerant version consists of two single-width processor modules.

Enhanced Reliability

The Control Processor 30 offers optional faulttolerance for enhanced reliability. The fault-tolerant control processor configuration consists of two parallel-operating modules with two separate connections to the Nodebus and to the Fieldbus.

The two control processor modules, married together as a fault-tolerant pair, are designed to provide continued operation of the unit in the event of virtually any hardware failure occurring within one module of the pair. Both modules receive and process information simultaneously, and faults are detected by the modules themselves. One of the significant methods of fault detection is comparison of communication messages at the module external interfaces. Upon detection of a fault, self-diagnostics are run by both modules to determine which module is defective. The non-defective module then assumes control without affecting normal system operations.

To further ensure reliable communications, the faulttolerant control processor performs error detection and address verification tests in its Nodebus and Fieldbus interfaces.

For enhanced reliability during maintenance operations, the Control Processor 30 is equipped with a recessed reset button, located at the front of the module. This feature provides for manually forcing a module power off and on (reboot) without removing the module from the enclosure.

Technical Specifications