What is the debugging method of the PLC program site? The user needs to debug before using the PLC. If you do not debug it will cause the use of the situation, then what is the specific on-site debugging method? The following small series will introduce the method of on-site debugging of the PLC program.
First, check the wiring and check the address. To do it point by point, make sure it is correct. Can not check with electricity, that is to check the line, more trouble. It can also be checked with electricity. After adding the signal, see if the operation of the electronic control system meets the design purpose.
Second, check the analog input and output. See if the I/O module is correct and working properly. If necessary, the accuracy of the input and output can also be checked with a standard instrument.
Third, inspection and test indicators. If there is an indicator on the control panel, check the indicator display first. On the one hand, the view light is broken, on the other hand, check if the logical relationship is correct. The indicator light is a mirror that reflects the system's operation. Adjusting it first will facilitate further commissioning.
Fourth, check the manual action and manual control logic relationship. The above debugging is completed, and then manual operation and manual control logic relationship debugging can be performed. To see the output points of each manual control, whether there is a corresponding output and the action corresponding to the output, and then see if each manual control can be achieved. If there is any problem, solve it immediately.
Five, semi-automatic work. If the system can work automatically, then whether the semi-automatic work can be achieved first. Step by step when debugging. Until the entire control cycle is completed. If there is a problem with any step or link, it will start to solve the problem of which step or link.
Sixth, work automatically. After the semi-automatic commissioning is completed, the automatic work can be further debugged. Look at several work cycles to make sure the system works continuously and correctly.
Seven, analog debugging, parameter determination. All of the above debugging are logical control projects. This is the first time you need to adjust the system debugging. After these debuggings are basically completed, you can start debugging analog and pulse quantity control. The main thing is to choose the appropriate control parameters. Generally speaking, this process is relatively long. To be patient, the parameters should be selected in a variety of ways, and then the best one is selected. Some PLCs, its PID parameters can be obtained through self-tuning. But this self-tuning process also takes a considerable amount of time to complete.
Eight, complete all the above steps, the entire commissioning is basically completed. But it is best to do some abnormal condition checks. Look at the abnormal situation or some illegal operations that are difficult to avoid, whether it will stop the protection or alarm prompt. When carrying out abnormal inspections, you must fully consider the safety of equipment and personnel!
The method of on-site debugging of the PLC program has been introduced. Now everyone has already understood the methods of debugging, and it is very important in the future use and on-site debugging.
First, check the wiring and check the address. To do it point by point, make sure it is correct. Can not check with electricity, that is to check the line, more trouble. It can also be checked with electricity. After adding the signal, see if the operation of the electronic control system meets the design purpose.
Second, check the analog input and output. See if the I/O module is correct and working properly. If necessary, the accuracy of the input and output can also be checked with a standard instrument.
Third, inspection and test indicators. If there is an indicator on the control panel, check the indicator display first. On the one hand, the view light is broken, on the other hand, check if the logical relationship is correct. The indicator light is a mirror that reflects the system's operation. Adjusting it first will facilitate further commissioning.
Fourth, check the manual action and manual control logic relationship. The above debugging is completed, and then manual operation and manual control logic relationship debugging can be performed. To see the output points of each manual control, whether there is a corresponding output and the action corresponding to the output, and then see if each manual control can be achieved. If there is any problem, solve it immediately.
Five, semi-automatic work. If the system can work automatically, then whether the semi-automatic work can be achieved first. Step by step when debugging. Until the entire control cycle is completed. If there is a problem with any step or link, it will start to solve the problem of which step or link.
Sixth, work automatically. After the semi-automatic commissioning is completed, the automatic work can be further debugged. Look at several work cycles to make sure the system works continuously and correctly.
Seven, analog debugging, parameter determination. All of the above debugging are logical control projects. This is the first time you need to adjust the system debugging. After these debuggings are basically completed, you can start debugging analog and pulse quantity control. The main thing is to choose the appropriate control parameters. Generally speaking, this process is relatively long. To be patient, the parameters should be selected in a variety of ways, and then the best one is selected. Some PLCs, its PID parameters can be obtained through self-tuning. But this self-tuning process also takes a considerable amount of time to complete.
Eight, complete all the above steps, the entire commissioning is basically completed. But it is best to do some abnormal condition checks. Look at the abnormal situation or some illegal operations that are difficult to avoid, whether it will stop the protection or alarm prompt. When carrying out abnormal inspections, you must fully consider the safety of equipment and personnel!
The method of on-site debugging of the PLC program has been introduced. Now everyone has already understood the methods of debugging, and it is very important in the future use and on-site debugging.
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