STEP 7 programming software
3.3 Easy-to-use tools
S7-1200 Programmable controller
48 System Manual, V4.2, 09/2016, A5E02486680-AK
Changing the call type for a DB
7 allows you to easily create or change the associ-
ation of a DB for an instruction or an FB that is in an FB.
You can switch the association between different DBs.
You can switch the association between a single-
instance DB and a multi-instance DB.
You can create an instance DB (if an instance DB is
missing or not available).
You can access the "Change call type" command either
by right
-clicking the instruction or FB in the program edi-
by selecting the "Block call" command from the
The "Call options" dialog allows
you to select a single
-instance
-instance DB. You can
also select specific DBs from a
drop
-down list of available DBs.