ALSTOM TRVC062105000 TRVC070938000 TRVC070938005.A Interface Board

The module receives external sensor signals (e.g., encoders, pressure sensors) or switching signals (voltage/current changes) through its high-speed input interfaces. Signal types include analog quantities (e.g., 4-20mA, 0-10V) and digital quantities (TTL/CMOS levels).

The jumper connection design allows flexible configuration of input channels, supporting common input or parallel coil connections to reduce wiring complexity.

Input signals are processed by hardware circuits (e.g., filtering, amplification, analog-to-digital conversion) and converted into digital signals for transmission to the Central Processing Unit (CPU).

The built-in RTOS in the module responds to input signals within sub-millisecond levels, ensuring rapid capture of transient changes (e.g., equipment start/stop, fault alarms).

Based on an independent RTOS, the module supports parallel execution of multiple tasks (e.g., motion control, communication management, data monitoring running synchronously). Task scheduling algorithms (e.g., priority preemption) ensure real-time performance of critical tasks (e.g., safety protection).

It can execute control logic written in IEC 61131 standard programming languages (e.g., ladder diagram, ST structured text). After compilation, the code generates machine code, completing calculations (e.g., PID regulation, logical judgment) within sub-microsecond levels (1K code volume).

For scenarios such as motion control and speed regulation, the module processes input data through preset algorithms (e.g., position closed-loop control, vector control) to generate output control signals (e.g., PWM pulses, relay contact signals).

Processed control signals drive actuators (e.g., servo motors, solenoid valves, contactors) through high-speed output interfaces. Output types include digital quantities (relay contacts, transistor outputs) and analog quantities (voltage/current outputs).

Jumper configuration supports parallel connection of output channels (e.g., parallel coil driving), optimizing wiring efficiency and reducing costs.

The output link has built-in electrical protection (e.g., overcurrent, short-circuit protection). When anomalies are detected, it automatically cuts off the output and triggers an alarm signal, while uploading fault information through the communication interface.

As an IO controller or IO device, the module accesses the ProFINET bus via an Ethernet port, supporting real-time data interaction:

The ProFINET stack supports direct data exchange between multiple controllers, processing communication requests from 100 ProFINET devices within 1 millisecond to meet the high real-time requirements of industrial sites.

Supports program download, online monitoring, and fault diagnosis through the universal debugging interface of the independent information system 61131, compatible with standard industrial communication protocols (e.g., Modbus, CANopen).

The module receives position signals feedback from encoders, calculates deviations through the PID algorithm, and outputs PWM signals to control the servo driver. Simultaneously, it communicates with the host computer via ProFINET to achieve closed-loop control of motor speed and position.

Based on input switching signals (e.g., sensor triggering), it executes logical operations (e.g., interlock protection) and then drives relay contacts to control the start-stop sequence of production line equipment.