WAGO I/O-SYSTEM 750 Manual page 192

192 • Appendix
Extended Register Structure (Configuration Block)
Fields identified as reserved are set to 0 and ignored by the module. The ex-
tended register structure of each module is saved for the run time in a 512-byte
block of 128 registers of 4 bytes each.
For all opcodes, for which "Save Config." is marked in the requirements, all
current settings are written in the non-volatile flash memory.
The structure of the data in the flash memory is differentiated from the ex-
tended register structure. The extended register structure only exists in the
RAM and is created for the run time.
The extended register structure is read using DLD commands in the configura-
tion mode or by querying individual values through opcodes. It behaves in a
manner similar to that for writing the configuration.
WAGO-I/O-SYSTEM 750
I/O Modules