Campbell Scientific CR5000 Measurement and Control Module - Manual (Page 48)

Section 2. Data Storage and Retrieval
2-8
from the CR5000. When a new program is compiled that sends data to the PC
card, the CR5000 checks if a card is present and if the card has adequate space
for the data tables. If the card has adequate space, the tables will be allocated
and the CR5000 will start storing data to them.
When the running program sends data to the card, and a card is inserted, the
CR5000 will detect the card and display a message.
A card that has no data tables files with the same names as those created by the
program causes the message:
New Card. Start Storing?
No
Yes
If the card has existing data table files that match those created by the program
there is the message:
Tables on Card Must be Reset. Proceed?
No
Yes
Same Card
The “ No” option [do not start storing data to the card] allows using the
CR5000 to check the card and to erase files or to format the card if necessary.
The “ Yes” option is to start storing data right away, resetting any tables with
the same name that exist on the card. This is the option that is generally used
when a blank (but formatted) card is inserted or when a card is reinserted after
transferring data to a computer.
The “ Same Card” option is only available if the data table header matches the
program exactly and the program has already run with a card. This option
allows removing the card to read it and then returning it to the CR5000 and
having the new data appended to the data already on the card. If you choose to
use this option be aware that if the CR5000 overwrites its buffer while the card
is out, there will be a gap in the data on the card.
2.3.4.2 Removing Card from CR5000
The PC Card Status LED just above the PC card door is lit when the card is
being written to.
Removing a card while it is active can cause garbled data
and can actually damage the card. Do not switch off the
power while the cards are present and active.
To remove a card, use the keyboard display to go to the PcCard menu; move
the cursor to “ Remove Card: and press Enter. The Status will show “ You may
now remove the card” . Remove the card. The card will be reactivated if not
removed.
CAUTION