Function
TMR triple redundant architecture: Three independent acquisition and voting channels, single point failure does not affect system safety functions, and is compatible with SIL3 interlocking requirements.
Flexible input configuration: The voltage range and resolution are software programmable, and external shunt resistors can support current signals, reducing the variety of spare parts.
High anti-interference ability: -85 dB common mode rejection ratio, effectively resisting electromagnetic interference in industrial sites and ensuring signal purity.
Comprehensive diagnosis and protection: real-time monitoring of input circuit and module status; Overvoltage protection up to 150 VDC/115 VAC to prevent abnormal damage to the module on site.
Fast sampling: 10 ms/channel update rate, meeting the real-time requirements of high-speed process control and safety interlocking.
Hot swappable and online configuration: Supports live replacement, TriStation 1131 can modify parameters and download them online without affecting system operation.

Application
Chemical/Petrochemical: Reactor temperature, pressure, liquid level collection, ESD interlock triggering criteria.
Oil and gas platform: wellhead pressure and flow monitoring, emergency shutdown system (ESD) data input.
Electricity: Boiler drum water level and steam temperature collection, turbine protection system.
Pharmaceutical/Food: Clean room pressure difference and material flow monitoring, in compliance with GMP compliance requirements.

TRICONEX 3721C｜Analog Input Invensys Module｜