ABB SNAT617CHC SK829007-B SK-11 modular

Description

Shanxi Runsheng Import and Export Co., Ltd. has strong strength, complete equipment, complete detection means, reliable quality and superior performance. Because our company adheres to the principle of “all for the sake of users”, adheres to strict delivery deadline, reasonable price standard, excellent product quality, and proper after-sales service, and has long-term sincere and effective cooperation with new and old users, reflecting reliable performance and distinctive advantages, and is trusted and welcomed by the majority of users.

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SNAT617CHC

DISCONTINUED BY MANUFACTURER

CHOPPER CONTROL BOARD

According to the installation mode of PLC, the system is divided into centralized, remote I/O and distributed with multiple PLCs connected. The centralized type does not need to set up remote I/O hardware to drive, and the system has fast response and low cost. Large-scale systems often use remote I/O type, because their devices are widely distributed. Remote I/O can be installed in the vicinity of I/O devices. The I/O connection is shorter than the centralized type, but it needs to add drivers and remote I/O power supply. The distribution of multiple networked devices is applicable to the situation where multiple devices are controlled independently and connected with each other. Small PLC can be selected, but communication modules must be attached.

Equivalent functional requirements

Generally, small (low level) PLC has logic operation, timing, counting and other functions, which can be satisfied for equipment that only needs switch control. For the system with switching control as the main control and a small amount of analog control, the A/D and D/A units can be selected. With addition and subtraction arithmetic operation. Enhanced low level PLC with data transmission function.

For complex control, it is required to realize PID calculation, closed-loop control, communication networking and other functions. Depending on the size and complexity of the control, medium or high-end PLC is selected. However, the price of medium and high grade PLC is relatively expensive, and the general mainframe is mainly used in large-scale process control and distributed control systems.

SNAT617CHC