Festo CECX-K-D1, Electronic Manual

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4. Commissioning information
Festo GDCC-CECX-K-D1-EN en 0802a 61
4.2.2 Operating states
Further information on the operating behaviour of the diagnostic
controller can be found in the system description for the diagnostic
module.
The controller has the following operating states:
Display Operating
status Description Possible command
INIT In the INIT operating status, the user application and
viewer are not yet loaded and the sending of process
data is stopped. This status is normally only passed
through during start-up. Start-up is stopped in INIT
status if:
− a serious system error occurs (e.g. hardware error),
− the CTRL key is pressed immediately before the INIT
status.
− Load application
− Clear retain memory
(clear retain)
− Generate report files
(write report)
− Restart
STOP In the STOP operating status:
− The application program (IEC project)
1)
is loaded,
but is not yet being processed.
− The exchange of process data is started. The output
data is set to zero (digital and analogue outputs 0
V).
− The inputs of other I/O modules are not accepted.
− Start application
(activate)
− Unload application
(unload)
− Generate report files
(write report)
− Restart
RUN In the RUN operating status:
− The application programs (IEC project)
1)
are proc-
essed, the exchange of process data takes place in
accordance with the configuration.
− The process output data is updated (unfreeze IO).
− The viewer application is loaded.
− Stop application
(stop)
− Generate report files
(write report)
DEBUG Only for service personal: The application can be exe-
cuted step-by-step in this operating status.
1) IEC project: User application for diagnostic controller
Table 4.3 Operating states of the controller
An online connection with the controller can only be established in
the STOP and RUN operating states.