GE 350-E-P5-G5-LESNN-SN-DN On site interface module
The calculation functions of a simple PLC include logical operations, 350-E-P5-G5-LESNN-SN-DN timing and counting functions; 350-E-P5-G5-LESNN-SN-DN usually includes data shifting, comparison, and other calculation functions in PLC; 350-E-P5-G5-LESNN-SN-DN has more complex computational functions such as algebraic operations and data transfer; In large PLCs, there are also PID operations for analog quantities and other high-end computing functions.
With the emergence of open systems, 350-E-P5-G5-LESNN-SN-DN now has communication functions in PLCs. Some products have communication with lower level computers, 350-E-P5-G5-LESNN-SN-DN some products have communication with same level or upper level computers, and 350-E-P5-G5-LESNN-SN-DN some products also have data communication functions with factories or enterprise networks.
Special attention should also be paid to the following points in input wiring:
(1) The input wiring should generally not exceed 30m. But if the environmental interference is small and the voltage drop is not significant, the input wiring can be appropriately longer.
(2) The input and output lines cannot use the same cable, and the input and output lines should be separated.
(3) The width of the pulse signal that the programmable controller can accept should be greater than the time of the scanning cycle.
Output wiring:
(1) Programmable controllers come in three forms: relay output, thyristor output, and transistor output.
(2) The output terminal wiring is divided into independent output and common output. When the output relay or thyristor of the PLC is activated, two output terminals of the same number are connected. Different types and voltage levels of output voltage can be used in different groups. But the outputs in the same group can only use the same type and voltage level of power supply.
(3) Due to the output components of PLC being encapsulated on the printed circuit board and connected to the terminal board, if the load connecting the output components is short circuited, it will burn out the printed circuit board. Therefore, fuse protection should be applied to the output components.
(4) When using relay output, the size of the inductive load it bears affects the working life of the relay, so the relay requires a long working life.
(5) The output load of PLC may generate noise interference, so measures should be taken to control it.
In addition, for hazardous loads that can cause harm to users, in addition to considering them in the control program, external emergency stop circuits should also be designed to cut off the power supply of the load that causes harm when the programmable controller fails.
Here are our main products. If you need them, we can send them to help you compare the prices!Main business: World brand PLC and DCS system spare parts modules① Allen Bradley (USA AB) series products② Schneider series products③ General Electric series products④ Westinghouse Series Products⑤ SIEMENS (Siemens series products)⑥ Selling ABB Robots FANUC Robots, YASKAWA Robots, KUKA Robots, Mitsubishi Robots, OTC Robots, Panasonic Robots, MOTOMAN Robots.⑦ Westinghouse: OVATION system, WDPF system, MAX0 system spare parts.
There are no reviews yet.