Beckhoff CX20 2 Series, Manual

Page: 55 / 77

NOVRAM
CX20x2 55 Version: 1.7
8.1.3 Note the write speed of the Retain Handler
The Retain Handler takes a certain amount of time to search for changes (delta function) in the variables and
save them in the NOVRAM.
The following diagrams provide an overview of how long the Retain Handler needs to save a particular data
quantity in the NOVRAM. Use the diagrams to select your task cycle time such that a particular data quantity
is saved in the NOVRAM within the selected task cycle time.
Fig. 33: Retain Handler write speed, up to 63 kB in 512 byte steps.
Fig. 34: Retain Handler write speed, up to 8 kB in 64 byte steps.