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Changes for page 08 Troubleshooting

Last modified by Mora Zhou on 2023/12/22 11:04
From version 3.1
edited by Leo Wei
on 2022/06/11 14:50
Change comment: There is no comment for this version
To version 5.1
edited by Leo Wei
on 2022/06/11 14:50
Change comment: There is no comment for this version

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21 21  The input and output of PLC is the main function of use, and I/O point problems are often caused by improper use or process\individual device problems; Including how the customer uses it, whether the mount is in compliance, etc. are all causes that lead to I/O failures .
22 22  
23 23  (% class="table-bordered" %)
24 -|**Number**|**Failure**|**Troubleshooting**|**Solution**
24 +|=**Number**|=**Failure**|=**Troubleshooting**|=**Solution**
25 25  |1|(((
26 26  X point failure
27 27  )))|1. Use PLC software to detect X points that cannot be lit;
... ... @@ -35,7 +35,7 @@
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;