1. Why can't the PLC communicate with the peripherals?
Communication failures are generally summarized as the following problems:
1. Communication cable: The connection may be incorrect, or the contact is poor, the user can change the communication cable and try again.
2. Communication parameters: The communication parameters of the PLC communication port and the peripheral equipment may be inconsistent.
3. Communication serial port: to view the communication serial port, you can check it by downloading the PLC program, and if the download is successful, the serial port problem will be eliminated.
2. Why can't I find the corresponding module type in the XDM series software?
1. Uninstall the old software, download the new software, and then copy the extended library file from the new software, uninstall the new software, install the old software, and then copy the imitation extended library file to the library of the old software.
2. Because it is necessary to correspond to the software version of Xinjie PLC hardware version
3. Why can't free-form communication be communicated?
First of all, check whether the communication parameters are set correctly, if you use serial port 2 communication, you need to modify the communication mode FD8220 to HFF, and set the FD8221 communication pattern to the corresponding parameters.
4. Why is the high-speed counting connected, but the PLC high-speed counter has no data?
1. Please confirm whether the PLC currently in use has a high-speed counting optocoupler. (Generally, it will be indicated on the PLC label, in addition, please specify the requirements for high-speed counting optocouplers before purchasing)
2. When the user's software version is 3.0 and the hardware version is 2.5, it may lead to the inability to recognize the high-speed counting, at this moment, the user can switch to 2.5 software, or upgrade the hardware to 3.0.
Note: It may not be successful to open the program with the old version, but the user can use the imitation of the programming sentence to paste it.
5. What time in the PLC has not changed?
Xinjie PLC XC1 series PLC does not have a clock.
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1. On the premise of satisfying the production equipment and process requirements, the acceleration or deceleration time should be increased as much as possible, and then the overcurrent generation in the process of acceleration or deceleration can be avoided.
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Communication:
(1) Radiation disturbance;
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Product Description:
According to the 2.4GHz Wifi wireless communication module, it has RS232 and RS485 interfaces
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Xinjie in a nutshell!
As the only domestic brand among the top 10 small PLC shopping malls in China, Xinjie has broken through the core shopping malls dominated by international brands for more than ten years, and the unswerving commitment of the leader Li Xin to independent development can be seen.
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2. Assuming that the humidity is relatively large, there are condensation or water marks, please open the cabinet door first, ventilate and dehumidify, you can use electric fans, etc.
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1. The cause of the leakage problem
Some sites use frequency converters to control the motor, which will present the problem of leakage, and the leakage voltage ranges from tens of volts to 200 volts. In view of this problem, the reason for this problem is explained and stated as follows.
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