S7-1200 symbolic vs non-symbolic DB vs SCADA

hdhosseini

Hamid,
The S7-1200 will not respond to requests from remote devices for symbolic addressed DBs regardless of how well we guess their internal structure. It simply refuses the request. It does not try to give you what you want, or even what the plc may 'think' you want. It just refuses.

Dear huggy_d1,

While speaking about reconstructing a DB with absolute
addresses based on the symbolic names and their orders,
I do not think CPU refuses a valid absolute addresses inside
a existing DB.The possible problems may be non existing cells or
wrong guessing addresses corresponds to given symbol.

It is a possible way but I rephrase it again ,It may not lead to a perfect result.

Many regards from Hamid Hosseini