Siemens PLC

7002 – CPU error

CPU temperature error

Details

CPU temperature exceeds safe operating limits.

Error typeerror
MeaningTemperature error
Typical causesInsufficient ventilation ambient temperature too high CPU fan failure
SolutionsCheck ventilation clear air vents verify ambient temperature check CPU fan operation
Severitycritical

Catalog references

Vendor Information

Siemens7002

Utilities

Troubleshooting Steps

Troubleshooting steps

Check ventilation clear air vents verify ambient temperature check CPU fan operation

Other codes

Other Siemens PLC Codes

80A0 – Memory error

Memory allocation error

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80A1 – Memory error

Memory error in retentive data area

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80A2 – Memory error

Memory error in work memory

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80A3 – Memory error

Memory error in load memory

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80A4 – Memory error

Memory card error

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FAQ

Common questions

What is the maximum temperature?

Check CPU specification for maximum operating temperature typically 60°C.