BECKHOFF CU8870-0000 - Manual (Page 10)

Installation
CU8870-0000 8
3.3 Compact-Flash card
The Compact Flash card (CF card) is a non-volatile memory media. Data to be retained in the event of a power failure should be
saved on the CF card. The CF card operates similar to a hard disk.
Note
It is recommended only use CF cards that are made for industrial use. (The cards can be
ordered via Beckhoff Automation GmbH.) They possess a higher number of read / write cycles
and an enhance temperature range (up to + 85°C).
A proper operation of the device can only be guaranteed with the use of CF cards from Beckhoff
Automation GmbH!
3.3.1 Inserting the CF card
The CF card must be inserted carefully upright with the written side to the left. in the CF slot. The slot has a
protection to ensure the right inserting direction. The card can only be inserted wrong direction with violence. As
soon as the card is inserted, the LED (P20) lights up green. The red LED (P21) flashes up shortly, too.
3.3.2 Ejecting the CF card
For ejecting the CF card press the small button below the CF slot. By pressing the button once the button expands.
Pressing the button the second time the CF card ejects. The button engages again. The green LED (P20)
extinguishes.