PLC specializes in the manufacture of industrial control equipment require to be used directly in industrial environments is usually no action. However, if the production environment too difficult, especially in the strong electromagnetic interference or incorrect installation, we can not guarantee the normal functioning of the controller and thus answer the following questions using the. Work environment. Temperature 0 ~ 55 temperature controller setup large items can not be enough next to the space around the vents heat should be between the base and line extensions to the original panel of 30 mm, speed, lower flaps in a well ventilated to avoid too much sun, when the environment more than 55 points to the installed electric fan for ventilation. Another API moisture, the benefits of insulation should be the relative humidity below 85% (no condensation). Third Download strong vibration from the API so that the resonant frequency 10 ~ 55 Hz oscillations are frequently or always is. Although the operating environment can not prevent the vibrations, the vibrations, such as rubber, such as the use of depreciation. The Fourth Avoiding air or corrosive gases, flammable, such as hydrochloric acid, hydrogen sulfide, and so on. More dust or corrosive gases in the environment of the PLC can be closed properly in a room or a bookcase or rack, and install air cleaning devices. Fifth PLC power supply is 50 Hz, 220 (10%) V AC, electrical installation, the controller has sufficient capacity to resist. Reliability of high interference is particularly severe or have the environment, you can install the shield of 1.01 separating the transformer to reduce the interference at the unit and the country. Power consumption can be cascaded LC filter circuit. FX-Series PLC terminals 24 V DC sensor connection (such as optical switches or inductive) 24 V DC. When using a DC If you use an external DC. Since the average rectifier, as the domino effect, slightly Corporation has received an error message. 2, the first assembly and wiring of power lines, control and power lines and I / O API are in sales, isolation transformer split, and the I / O controller is used in the cable between the Shuangjiao. Another PLC should stay away from noise sources as strong as welding, high-power silicon rectifier devices and large power plants are not high-voltage devices on top of houses. The third input and output matching, drivers, analog switches, and the volume is a separate object. Signals from the analog signal must be protected at one end or at both ends of the screen should be grounded on the screen is less resistance 1 / 10 Fourth Basic unit and expansion modules and function modules, must the cable be installed separately in order to avoid interference from external signals. The fifth line of AC and DC should not be the same cable, line-out near power lines and power lines are kept to avoid the side .