Invensys Triconex 3700A Analog Input Module
General info
| Manufacture | Invensys Triconex |
| Item No | 3700A |
| Article number | 3700A |
| Series | TRICON SYSTEMS |
| Origin | United States（US） |
| Dimension | 51*406*406(mm) |
| Weight | 2.3 kg |
| Customs Tariff Number | 85389091 |
| Type | TMR Analog Input |
Detailed data
Triconex 3700A Analog Input Module
The Invensys Triconex 3700A TMR Analog Input Module is a high-performance component designed for demanding industrial control systems. Based on the information provided, here are the key specifications and features:
TMR Analog Input Module, specifically model 3700A.
The module includes three independent input channels, each capable of receiving a variable voltage signal, converting it to a digital value, and transmitting those values to the main processor module as needed. It operates in TMR (Triple Modular Redundancy) mode, using a median selection algorithm to select one value per scan to ensure accurate data collection even if one channel fails.
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The Analog Input (AI) module includes three independent input channels. Each input channel receives a variable voltage signal from each point, converts it to a digital value, and transmits that value to three main processor modules as needed. In TMR mode, a value is selected using a median selection algorithm to ensure correct data for each scan. The sensing method for each input point prevents a single fault on one channel from affecting another channel. Each analog input module provides complete and continuous diagnostics for each channel.
Any diagnostic fault on any channel activates the module's fault indicator, which in turn activates the chassis alarm signal. The module's fault indicator only reports channel faults, not module faults - the module can operate normally with up to two faulty channels.
The analog input modules support a hot spare function, allowing online replacement of a faulty module.
The analog input modules require a separate external termination panel (ETP) with a cable interface to the Tricon backplane. Each module is mechanically keyed for proper installation in the Tricon chassis.
