Operating Behavior; Button And Display, General Information - Festo CECX-X-C1 Series Manual

8 Operating behavior

8.1

Button and display, general information

Each CPU module has a 7-segment display and a CTRL key.
Display
Button
Start-up sequence
8.1.1 General rules
In general the following applies to the 7-segment display (on CPU-
modules):
Numbers >0 during the start-up denote the progress

Different characters (e.g. , II, ...) or capital letters denote the operating

status after start-up
The decimal point serves as load display. A flashing decimal point

signals that the CPU's load capacity is not fully exhausted.
Errors are displayed parallel to the states.

The error display is always triggered with switching-through the status

and a double- or triple-digit error/info sequence (e.g. "-,0,-,E,1,0"). Every
character is displayed for 1 second.
8.1.2 Touch control during operation:
The CTRL key serves as simple operating element of the control. With this
key the control can be switched into different operating modes and/or dif-
ferent commands can be issued.
There are short (<500ms) and long keystrokes (>500ms).

Short keystrokes allow the user to switch and select between the indi-

vidual commands, while these commands are displayed by flashing in
the 7-segment display. Once the initial status has been reached again
this will be indicated without flashing.
Long keystrokes are used to execute a command and to change into

the new status.
System manual CECX / Operating behavior
CPU modules
Power LED,
7-segment
CTRL-key
Boot system
Firmware
Application
CECX-II 8-1