BECKHOFF CX9020 - Manual (Page 14)

Product overview
2.8 S­UPS: capacitive one­second UPS
The CX9020_U900 family features a built­in capacitive one­second UPS. It ensures a safe storage of the
persistent application data on the Compact Flash card.
Up to 1 MB of persistent data can be saved. The UPS can be switched on and off via the BIOS. Under the
menu:
Integration into a PLC
TwinCAT offers special function blocks for integrating the S­UPS into a PLC program. These are described
in the chapter Commissioning>1 Second UPS. For TwinCAT 2.11R3 Build 2247 or TwinCAT 3.1 Build 4018
the required library is integrated in the installation. For older versions the library TcSUPS_CX9020_U900.lib
has to be copied into the TwinCAT library directory.
CX9020 14 Version 1.1