Introduction to POP-NET Distributed Controller
The POP-NET distributed controller is a new generation of network-based structural/material testing controllers developed through advanced research. With flexible deployment options and proprietary built-in control algorithms, the POP-NET controller can adapt to usage requirements ranging from single-actuator control to coordinated control of hundreds of actuators. It fully ensures system reliability and testing accuracy while reducing on-site installation and maintenance demands.
In multi-channel complex structural servo loading applications, the signal input and output of each actuator control loop are independent and unaffected by other loops, minimizing software coupling. The design philosophy of distributed controllers reduces the computational requirements of the computer. With the support of high-speed communication buses and a system-wide synchronous clock, millisecond-level precision synchronous control can be achieved.
Basic Performance of the Control System
The controller adopts a modular internal design to meet various application needs;
All I/O interfaces are isolated from external sources;
Reasonable I/O configuration, optimized for structural/material testing applications;
Built-in proprietary control algorithms for on-site signal acquisition, processing, and output control;
Network interface based on Modbus TCP/UDP protocol, enabling easy setup of testing systems of different scales;
Distributed architecture shortens the distance between various sensors and the controller, significantly enhancing system stability.
Product specifications are as follows:
AD sampling accuracy and resolution: 18-bit/24-bit, effective sampling frequency: 10KHz;
D/A output resolution: 16-bit;
Closed-loop control frequency: 5KHz;
Strain gauge sensor input: 2 channels, with built-in strain signal amplifier; high precision and strong anti-interference capability;
Analog output: 4 channels, configurable as ±10V/±10mA, ±40mA, or 0-20mA;
Conventional analog input: 4 channels, ±10V;
RS-485 interface: transmission rate 2M;
Ethernet interface: 1 channel; 10/100M;
Displacement sensor input: 2 channels for SSL displacement sensors, 2 channels for photoelectric encoder input;
Digital I/O: 6 channels of optically isolated input, 7 channels of optically isolated output, 2 channels of differential input, 4 channels of differential output;
Communication protocol: MODBUS TCP/UDP protocol;