FAQs Frequently asked questions about our products and solutions

What might cause a “CardStatus Unable to access Card. errno: 42” message? What does this message mean?

The error may be caused by the use of a CompactFlash (CF) card that is not compatible with the datalogger or by a hardware failure on the CF card. Use only the CF cards listed in the “CF Card Information” application note. 

Other possible causes include the following:

• The module might not be plugged into the wiring panel correctly. For example, the module might be loose.
• There may be broken or bent pins in the connector to the wiring panel. Visibly check the module and the datalogger, especially for dirt or bits of paper.
• There may be a hardware fault, such as a bad solder joint in the module or in the card itself. Also, check for moisture.
• Dirt in the card slot or even in the small holes of the socket of the card may prevent proper contact from being made when the card is plugged in.

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