Siemens SITOP UPS1600 under STEP 7 V12 - Page 27

Parameterizing the SITOP UPS1600
6.1 Buffering an S7 IO controller, including the I/O when the power fails
SITOP UPS1600 under STEP 7 V12
Getting Started,
27
7. Enter the buffer time in "Buffer time".
8. Enter "Additional buffer time after PC shutdown".