Omron C-series User Manual
Page 21

2-5
Section
Backup Power Supply
11
The following diagram illustrates a situation in which a 12V battery is used as a
backup power supply, connected to the Link Adapter in Plant B. If there were no
backup power supply in this case, then a power failure in Plant B would cut off
signal transmission between Plant A and Plant C. By connecting the backup bat-
tery in Plant B this is avoided, and continued transmission is assured.