2014年5月7日星期三

input module plc choice

input module plc choice
 input module plc choices: 1. Select the power module power module choice is simple, just consider the power supply's rated output current on it. Rated current of the power module must be greater than the total current consumption of the CPU module, I / O modules, and other modules. input module plc select only the modular structure of the PLC, the PLC does Programmable Output Module  not exist for the monolithic power of choice. 2. input module plc programming choice for small control system or PLC system does not require on-line programming, generally used cheap simple programmer. For Chinese and complex systems composed of high-end PLC or need online programming PLC systems can be equipped with powerful, easy programming smart programmer, but a smart programmer expensive. If you have an existing personal computer, you can use the PLC programming software package for programming the function on a personal computer. 3. Writer's choice in order to prevent interference due to plc communication modules  voltage variations and other factors make lithium destruction RAM, users and programs can be selected EPROM writer, through which the user program solidified in EPROM. Now some PLC or EPROM programmer itself has written functions.

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