BECKHOFF DK9122-0311-0026 - Manual (Page 3)

Industrial PC
Monitoring and diagnosis
Application Note DK9122-0311-0026
eSUPS_WrPersistData_Shutdown
eSUPS_WrPersistData_NoShutdown
eSUPS_ImmediateShutdown
eSUPS_CheckPowerStatus
writing of persistent data and then a
QuickShutdown
only writing of the persistent data
(no QuickShutdown)
only QuickShutdown
(no writing of persistent data)
pure monitoring
(neither writing of persistent data nor a
QuickShutdown) Data handling is entirely at
the discretion of the user.
mode operation
Fig. 2 The mode defines whether persistent data is to be written and whether a QuickShutdown is to be performed.
Practical examples
The advantages of UPS-assisted use for typical areas of application:
1. Switching off plants by the main switch
2. Logging lots, process values and measured values
3. Securing the process image
1. Switching off plants by the main switch
Mobile plant elements with their own control and separate power supply are frequently switched off via the integrated main
switch, without giving consideration to the state of the controller. The use of the 1-second UPS from Beckhoff guarantees that,
when the power supply is switched off, the plant can save the relevant operating data that need to be available when switched
on again.
New Automation Technology Beckhoff 3
For application notes see disclaimer on the last page