10/8/2012 1:44 PM | |
Posts: 378 Rating: (73) |
Hello Ser_Ko , If your reqirement is bidirectional comm between OBA7 and S7-300 then use OBA7 as a client and S7-300 as Server then after assign same read and write address for s7-300 For example: On your ethernet client properties, ID | Operate | Length(bytes) | Address(Local) | Address(Remote) | --------------------------------------------------------------------------------------------- 1 | Read | 1 | VB0 | DB1.DBB0 | --------------------------------------------------------------------------------------------- 2 | Write | 1 | VB2 | DB1.DBB0 | Therefore if you want to read value from S7-300 use VB0 else if you want to write value to S7-300 use VB2 Hope this helps, for more see the attached picture Regards, |
10/9/2012 4:35 PM | |
Posts: 378 Rating: (73) |
Hello Ser_Ko, I like your remarkable consideration on read/write speed of EEPROM. But as I understand (guess) the firmware structure of LOGO, all memory management (reading and writing) of EEPROM is done by the firmware of LOGO (VBx, DBx.DBBx will not access directly EEPROM). Thus you should not worry about this. Regards, |
Follow us on