Siemens SIMATIC OP 77B, Руководство по эксплуатации

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Release 03/2004
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Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0
5–3
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Other operating elements include:
•
Ejection button on memory card holder; refer to
Figure 5–2
•
Guides for the labeling strips; refer to Figure 1–2
•
DIL switches for the RS 422/RS 485 switch; refer to
Figure 4–3
Using memory cards
Notice
Data loss
If a prompt for formatting appears when using a
memory card for the first time on the HMI device, make
a backup copy of the data on the memory card on a PC
beforehand.
Proceed as follows to prevent loss of data:
Cancel the formatting process by pressing ESC
Data which must not be lost should be saved on a
PC
Format the memory card on the HMI device
Transfer the data saved on the PC to the memory
card
Then transfer the backed up data from the memory
card to the HMI device.