1: The scale of the product is developing in two directions: large and small. Large: I/O points up to 14,336 points, 32-bit microprocessor, multi-CPU parallel work, large-capacity memory, and high-speed scanning. Small: The development from the overall structure to the small modular structure increases the flexibility of configuration and reduces the cost.
2: PLC is increasingly widely used in closed-loop process control
3: Continuously strengthen communication functions
4:. New devices and modules are constantly being introduced. In addition to the main use of CPU to increase processing speed, high-end PLCs also have specializations such as intelligent I/O modules with processor-based EPROM or RAM, high-speed counting modules, and remote I/O modules. Module.
5: The programming tools are rich and diverse, the functions are continuously improved, and the programming language tends to be standardized. There are various simple or complex programmers and programming software, using ladder diagram, function diagram, statement list and other programming languages, and there are high-end PLC command systems.
6: Develop fault-tolerant technology. Use hot standby or parallel work and majority voting.
7: Pursue the standardization of software and hardware.