3720 Tricon 系统

Tricon system features
To ensure the integrity of the system at all times, Tricon has the following features:
Provides a triple module structure, three identical sub-circuits independently perform the degree of control. There is also a dedicated hardware/software architecture to “vote” on inputs and outputs
Withstand harsh industrial environments
Can be installed on-site, can be on-site online module level installation and repair work without disrupting the field wiring. Supports up to 118 I/0 modules (both analog and digital) and optional communication modules that can be connected to Modbus master and slave stations. Or with Foxboro and Honeywell Distributed Control Systems (DCS), other TRicons in Peer-to-Peer networks, The connection to an external host on a TCP/IP network enables remote I/O modules located up to 12 km (7.5 mi) away from the host frame to develop and debug control programs using Windows-based programming software
Intelligent functions are provided in the input and output modules to reduce the workload of the main processor. Each /0 module has three microprocessors. The input module’s processor filters and repairs the input, and diagnoses hardware failures on the module. The output module’s processor provides information for voting on the output data, checks the validity of the output status by the feedback loop voltage at the output, and can diagnose problems with the field line
Provides comprehensive online diagnostics with repair capabilities.
Routine maintenance can be performed while Tricon is operating normally without interrupting the control process
Provides “hot spare” support for I/0 modules, which can be used in some critical situations where service cannot be provided in a timely manner.