WAGO -I/O-SYSTEM 750 Manual page 226

226 Fieldbus Communication
FC23
0x17
To execute a desired function, specify the respective function code and the
address of the selected input or output data.
Note the number system when addressing!
The examples listed use the hexadecimal system (i.e.: 0x000) as their numerical
format. Addressing begins with 0. The format and beginning of the addressing
may vary according to the software and the control system. All addresses then
need to be converted accordingly.
Manual
1.5.0
750-882 Media Redundancy ETHERNET Controller
Read/Write Reading and writing of several
Multiple output registers
Registers
WAGO-I/O-SYSTEM 750
R/W: Process image,
PFC variables,
NOVRAM