Product Description
1. SIMATIC S7-200 PLC is an ultra compact PLC that is suitable for automatic detection, monitoring, and control in various industries and occasions. The powerful functions of S7-200 PLC enable it to achieve complex control functions whether running alone or connected to a network. S7-200 PLC can provide 4 different basic models and 8 types of CPUs for selection.
2. SIMATIC S7-300 PLC S7-300 is a modular small PLC system that can meet applications with moderate performance requirements. Various individual
The modules can be widely combined to form systems with different requirements. Compared with S7-200 PLC, S7-300 PLC adopts a modular structure and has a high-speed (0.6~0.1 μ s) instruction operation speed; More complex arithmetic operations have been effectively implemented using floating-point operations; A software tool with a standard user interface that facilitates users to assign parameters to all modules; The convenient human-machine interface service has been integrated into the S7-300 operating system, greatly reducing the programming requirements for human-machine dialogue. The SIMATIC human-machine interface (HMI) retrieves data from S7-300, and S7-300 transmits this data at a user specified refresh rate. The S7-300 operating system automatically processes the transmission of data; The intelligent diagnostic system of the CPU continuously monitors whether the system's functions are normal, records errors and special system events (such as timeouts, module replacements, etc.); Multi level password protection can effectively protect users' technical secrets and prevent unauthorized copying and modification; The S7-300 PLC is equipped with an operation mode selection switch, which can be pulled out like a key. When the key is pulled out, the operation mode cannot be changed, which can prevent illegal deletion or rewriting of user programs. With powerful communication capabilities, the S7-300 PLC can provide communication configuration functions through the user interface of programming software Step 7, making configuration very easy and simple. The S7-300 PLC has multiple communication interfaces and connects to the AS-I bus interface and industrial Ethernet bus system through various communication processors; Serial communication processors are used to connect point-to-point communication systems; Multipoint Interface (MPI) is integrated into the CPU, used to simultaneously connect programmers, PCs, human-machine interface systems, and other SIMATIC S7/M7/C7 automation control systems.
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