120 • MODBUS FunctionsInternal VariablesWAGO-I/O-SYSTEM 750ETHERNET TCP/IPRegister address 0x2030 (MODBUS Address 408241, with a word count of upto 65)Designation Description of the connected I/O modulesAccess Read modules 0 ... 64Description Length 1-65 wordsThese 65 registers identify the coupler and the first 64 modules present in anode. Each module is represented in a word. Because item numbers cannotbe read out of digital modules, a code is displayed for them, as definedbelow:Bit position 0 -> Input moduleBit position 1 -> Output moduleBit position 2-7 -> not usedBit position 8-14 -> module size in bitsBit position 15 -> Designation digital moduleExamples:4 Channel Digital Input Module = 0x8401bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0code 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1hex 8 4 0 12 Channel Digital Output Module = 0x8202bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0code 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0hex 8 2 0 2Register address 0x2040 (MODBUS Address 408257)Designation Implement a software resetAccess write (Write sequence 0xAA55 or 0x55AA)Description With Writing 0xAA55 or 0x55AA the register will be reset.4.2.5.4 Firmware InformationThe following registers contain information on the firmware of the coupler:Register address 0x2010 (MODBUS Address 408209, with a word count of 1)Designation Revision, INFO_REVISIONAccess ReadDescription Firmware Index, e. g. 0005 for version 5Register address 0x2011 (MODBUS Address 408210, with a word count of 1)Value Series code, INFO_SERIESAccess ReadDescription WAGO serial number, e. g. 0750 for WAGO-I/O-SYSTEM 750
