Description
TMR Digital Input Modules Each TMR digital input (DI) modulehas three isolated input channels whichindependently process all data input tothe module. A microprocessor on eachchannel scans each input point,compiles data, and transmits it to themain processors upon demand. Theninput data is voted at the main processors just prior to processing to ensurethe highest integrity. All critical signalpaths are 100 percent triplicated forguaranteed safety and maximum availability. Each channel conditions signalsindependently and provides opticalisolation between the field and theTricon. All TMR digital input modules sustaincomplete, ongoing diagnostics for eachchannel. Failure of any diagnostic onany channel activates the module Faultindicator which in turn activates thechassis alarm signal. The module Faultindicator points to a channel fault, not amodule failure. The module is guaranteed to operate properly in the presenceof a single fault and may continue tooperate properly with certain kinds ofmultiple faults. Models 3502E, 3503E, and 3505E canself-test to detect stuck-ON conditionswhere the circuitry cannot tell whethera point has gone to the OFF state. Sincemost safety systems are set up with ade-energize-to-trip capability, theability to detect OFF points is an important feature. To test for stuck-ONinputs, a switch within the inputcircuitry is closed to allow a zero input(OFF) to be read by the optical isolationcircuitry. The last data reading is frozenin the I/O communication processorwhile the test is running. All TMR digital input modules supporthot-spare capability, and require a separate external termination panel (ETP)with a cable interface to the Triconbackplane. Each module is mechanically keyed to prevent improper installation in a configured chassis.
TRICONEX Triple redundant fault-tolerant control system is introduced:Invensys TRICONEX system, completely follow IEC61508/61511 standard, adopt the most advanced TMR microprocessor hardware technology, mature and reliable TRISTATION 1131 triple redundant fault-tolerant control system of the software. System of high reliability and high efficiency, is widely used in petrochemical, oil refining, petroleum, chemical, electric power, rail transportation, aerospace, nuclear industry and other industries, the device safety interlock system ESD, steam turbine, gas turbine control, compression pant of vibration control, offshore oil platform, internal heat monitoring protection (head), there are a wide range of aspects such as performance. The Tricon system can be rackmounted or panel-mounted in an industry-standard NEMA enclosure as described on the next page. Cabinets can optionally be equipped with base and casters. Multiple cabinets can be bolted together on the sides, but sufficient clearance must be allowed to fully open their front and rear doors. The Triconex system usually consists of the following typical modules: • Main Processor modules (triple). • Communication module(s) . • Input and output modules: can be analog and/or digital and work singularly or in hot-spare (standby). • Power supply modules (redundant). • Backplane(s) (chassis) that can hold the previous modules. • System cabinet(s): can compact one or more chassis in one cabinet. • Marshalling cabinets to adapt and standardize interface connections between the field instruments and the Triconex system cabinets. • Human machine interface (HMI) to monitor the events. • Engineering workstation (EWS) for programming. monitoring, troubleshooting, and updating.
The company focuses on DCS, PLC, robot, large servo four systems
The main products are various modules/cards, controllers, touch screens, servo drivers Company advantage: Supply imported original products, professional production of spare parts One year warranty, fast delivery time, complete supply !！！ ① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.
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