Hi,
In PCS7, how can we write value to DB & access the same in Wincc.

Say For Example, in an CFC we have put an CH_AI block & have connected this CH_AI block to an Analog Input. In this particular we are only interested in the output of the CH_AI block.

Since block icons are not created in the Wincc, how can we read the values in Wincc?? Can this be done by writing values to DB in CFC and accessing the same DB in Wincc, if so please help me out.

Thanx
Anil

 

If the block has the attribute S7_m_c set to true, the tags which have this attribute too must defined after you transfer to WinCC.
this must solve the problem.

If you still want to use a DB you have to take care that the DB is DB that has the attribute S7_m_C is set to true.