The ICS T8480 is a highly reliable Triple module redundancy (TMR) analog output module manufactured by Rockwell Automation and designed for industrial control systems requiring extremely high safety, such as nuclear power plants and the petrochemical industry. With 40 analog output channels, the module provides precise analog signal control for driving a variety of actuators, such as valves and motors. It adopts a triple module redundancy design, which ensures the reliability of the output signal by processing the data simultaneously through three independent modules. Even if a module fails, it will not affect the normal operation of the system, thus significantly improving the security and reliability of the system.

The ICS T8480 module has a powerful self-diagnostic function, which can monitor its own working status in real time, and find and report faults in time, which makes it excellent in monitoring and fault detection. In addition, the module also uses a variety of measures to improve its reliability, including photoelectric isolation and overvoltage protection. These features make the ICS T8480 ideal for critical applications, especially in industrial environments where safety and reliability are critical requirements.

Rockwell Automation’s ICS T8480 Trusted TMR Analog Output Module is a 40-channel analog output module that is part of its Trusted family of input/output modules. These modules share common functionality and morphology, and all interface with an Inter-Module Bus (IMB) that provides power and allows communication with TMR processors. In addition, all modules have field interfaces for connecting field-specific signals, and all modules feature a triple module redundancy (TMR) design.

The architecture of the ICS T8480 module includes the Host Interface Unit (HIU), Field Interface Unit (FIU), and Front Panel Unit (FPU). The HIU is the connection point between the module and the IMB, providing high-speed fault-tolerant communication, FCR interconnection bus, isolated serial data interface and other functions. Fius contain the necessary circuits to interface with the field I/O signals, each module has 3 FIUs, each FIUs contains a portion of 40 output driver circuits. The FPU contains the connectors, switches, logic, and LED indicators required for the front panel to provide status indications for each type of Trusted I/O module.

The analog output of the module provides a triple monitored fail-safe (6-element) drive channel, with two drive channels that provide a regulated current to the load even if one drive or the entire slice fails. In addition, the module has an output channel diagnostic function, which continuously monitors the output current and compares it with the current reported by each individual slice to ensure the accuracy and reliability of the output signal.