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Foxboro Invensys Triconex 3503E TMR Digital Input Module

InvensysDigital Input ModuleIntroduction

Triconex 3503ETMR Digital Input (DI) module has three isolated input channels which independently process all data input to the module. A microprocessor on each channel scans each input point,compiles data, and transmits it to the Main Processors upon demand. Then input data is voted at the Main Proces-sors just prior toprocessing to ensure the highest integrity. All critical signal paths are 100 percent triplicated for guaranteed safety and maximum avail-ability. Each channel conditions signals independently and provides optical isolation between the field and the Tricon.Models 3503E, 3502E, and 3505E can self-test to detect stuck-On conditions where the circuitry cannot tell whether a point has gone to the Off state. Since most safety systems are set up with ade-energize-to-trip capability, the ability to detect Off points is an impor-tant feature.

InvensysDigital Input Module Specifications

Invensys Triconex Modules types

Processor Module:3006、3007、3008
Digital Input Module :3501E、3502E、3503E、3504E、3505E、3564

Pulse Input Module:3510、3511、3515

Thermocouple Input Module:3706A

Digital Onput Module :3625、3601E、3603B、3603E、3604E、3607E、3664、3674, 3613E、3611、3614E、3615E、3617E,3624、3623

Analog Onput Module :3805E

Communication OnputModule TCM: 4351B、4119、4119A、4329

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