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

 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. Triconex goes beyond functional safety systems in the general sense to provide a full range of safety-critical solutions and lifecycle safety management concepts and services for factories. Across facilities and enterprises, Triconex keeps enterprises in sync with safety, reliability, stability and profitability.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.