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Changes for page 08 Troubleshooting

Last modified by Mora Zhou on 2023/12/22 11:04
From version 5.1
edited by Leo Wei
on 2022/06/11 14:50
Change comment: There is no comment for this version
To version 3.2
edited by Leo Wei
on 2022/06/11 14:50
Change comment: There is no comment for this version

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35 35  The main communication ports of PLC are two serial ports, one S terminal serial port, and one USB port. The specific troubleshooting methods for communication faults are as follows：
36 36  
37 37  (% class="table-bordered" %)
38 -|=**Number**|=**Failure**|=**Troubleshooting**|=**Solution**
38 +|**Number**|**Failure**|**Troubleshooting**|**Solution**
39 39  |1|USB not recognized|1. For PLCs used for a long time, it may be caused by the oxidation of the USB port or poor contact in other places;
40 40  2. For the new PLC, it may be a USB problem or an inconsistent software version;|If no voltage is detected, the motherboard needs to be replaced for confirmation.
41 41  |2|485 port cannot communicate|1. Power on the PLC, observe the transceiver communication lights on the side of the serial port terminal, you can preliminarily determine which serial port has the problem of receiving/transmitting;