JOHNSON MS-NAE5510-2 Network control engine
Product description
The average price of each I/O point of the integral PLC is cheaper than that of the modular type, and the volume is relatively small, so it is generally used in small control systems with fixed system processes; The modular PLC function expansion is flexible and convenient, the number of I/O points, the proportion of input points and output points, the type of I/O modules, etc., the choice is large.
As long as the module is replaced during maintenance, it is also convenient to determine the scope of the fault. Therefore, modular PLC is generally suitable for more complex systems and poor environment (large maintenance) occasions. According to the PLC installation mode, the system is divided into centralized, remote I/O and distributed with multiple PLC networking. Centralized drive remote I/O hardware does not need to be set up, the system response is fast. Large systems often use remote I/O because their devices are widely distributed, remote I/O can be dispersed near the I/O device, I/O connections are shorter than centralized, but need to add drivers and remote I/O power.
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