4. Commissioning information
62
Festo GDCC-CECX-K-D1-EN en 0802a
Figure 4.1 Operating states of the controller
4.2.3
Keyboard operation using the CTRL key
Caution
Operating errors in connection with the CTRL key can cause system
errors and lead to loss of data.
Only press the CTRL key on the instruction of Festo service per-
sonnel.
The CTRL key is located on the central modules beside the 7-segment display. Using this
key, the service technician can, for example, generate report files, clear retain data or if
necessary switch the controller into different operating states. A distinction is made here
between the different keystroke lengths:
Keystroke (CTRL)
Length
Description
Long
> 500 ms
Execute command (e.g. write report) or switch to another operating
status
Short
< 500 ms
Switch to the next command
Table 4.4 Keystroke (CTRL key)
