BECKHOFF CX2100­09x4 - Manual (Page 48)

Commissioning
The correct ISA/PCI address must be configured for the CP903x UPS:
Search: If you have one of the integrated 24V UPS devices on the CP903x card and want to configure it for
UPS service you can use the Search button to find the correct address of the CP903x ISA or PCI card.
CX2100­09x4 48 Version 1.1