Technical data

Fieldbus Communication • 241
MODBUS Functions
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
Register address 0x2033 (MODBUS Address 408244, with a word count of up to 63)
Designation Description of the connected I/O modules
Access Read modules 193 ... 255
Description Length 1-63 words
These 63 registers identify the 4th block of I/O modules present (modules
193 to 255). Each module is represented in a word. Because item numbers
cannot be read out of digital modules, a code is displayed for them, as de-
fined below:
Bit position 0 ! Input module
Bit position 1 ! Output module
Bit position 2-7 ! not used
Bit position 8-14 ! module size in bits
Bit position 15 ! Designation digital module
Register address 0x2040 (MODBUS Address 408257)
Designation Implement a software reset
Access write (Write sequence 0xAA55 or 0x55AA)
Description With Writing 0xAA55 or 0x55AA the register will be reset.
Register address 0x2041 (MODBUS Address 408258) since Firmware version 3
Designation Flash Format
Access write (Write sequence 0xAA55 or 0x55AA)
Description The file system Flash is again formatted.
Register address 0x2042 (MODBUS Address 408259) since Firmware version 3
Designation Extract data files
Access write (Write sequence 0xAA55 or 0x55AA)
Description The standard files (HTML pages) of the Controller are extracted and writ-
ten into the Flash.
Register address 0x2043 since Firmware version 9
Designation 0x55AA
Access write
Description Factory Settings