HP 1B, 2B, 71450B Protecting Memory, To protect ￿les from erasure

Protecting Memory

The PROTECT command protects internal memory against erasure by the PERASE, FORMAT and DISPOSE commands. The PSTATE command protects state-register ￿les on both internal or external memory.

On memory cards, the write-protect switch, when set to SAFE, protects the card's contents from erasure. For other HP-MSIB or HP-IB devices, refer to protection instructions for your particular mass storage device.

Internal Memory Erasure

The PROTECT and PSTATE commands do not prevent internal memory erasure with the ERASE command.

To protect ￿les from erasure

￿Use PROTECT to protect internal memory ￿les.

￿Use PSTATE to protect state register ￿les.

￿Use the memory card's write-protect switch to protect ￿les on a card.

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