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How to solve the problem of Siemens module alarm lacking user power supply
Check whether the power supply terminal is connected incorrectly, replace the power supply for testing or use the CPU24VDC output power supply for testing.
First of all, check whether the power terminal of the module is connected incorrectly, and it should be connected to the terminal block X 10. If it is confirmed to be normal after replacing the module for a period of time, check the module power supply, replace the power supply and test it, or use the CPU24VDC output power supply to test it.
Siemens is a technology company focusing on industry, infrastructure, transportation and medical treatment.
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