symbol table Download

Hi,
I am using S7 300 plc
can we Dwnload the symbol table in plc by simatic manger?

No, symbol table is not stored in this type of PLC.

If the PLC has a MMC it is possible to save files to the memory card

You can store any files that are to do with the plant on the MC/MMC.
Proceed as follows:

Slot the memory card or micro memory card in the PG.
Open the SIMATIC Manager.
Go to "File > S7 Memory Card > Open".
Then go to "PLC > Save to Memory Card...".

Follow this link -

http://support.automation.siemens.com/WW/view/en/22122201

and this one ...

http://support.automation.siemens.com/WW/view/en/26123821