Holding Register_Modbus TCP IP

[Elyas_gh 0]

Greetings How should the data via a function block 108 and the CP 343-1 card Posted in Telemecanique plc(premium P57 with ETY110ws) received? If in the siemens plc used the data block11 with start_db1 and end_db 100 ,who holding register have chosen to use the Telemecanique plc(PL7 V4.4) you write %mw1or %mw40001? DB11.dw1=%mw1 OR DB11.dw1=%mw40001 What is the purpose of Modbus register address? If possible, explain the file. Thanks Modbus TCP PN_CPU English.pdf

[misel00 0]

Hello, Almost a year your question, I think I may have an answer for you. About the address you have to write, it is %MW1, which translates to address 40001 in modbus tcp, since it uses standard mobus addressing scheme. Keep in mind the data type. The figure simply tells you there's an offset for correspondence from Simatic to standard addressing. This is, if you want to read/write MW301 from Simatic, you have to direct it in your program as MW300. This is a case I've seen for Magelis. Hope this helps. Regards.