S7Db" Configuration Version - Siemens SIMATIC FM 458-1 DP User Manual

Configuring

4.9.2 "S7DB" configuration version

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When using the "S7DB_P" function block, the connection markings in the
CFC charts and the creation of the address book are not required.
Instead of this, the "S7DB_P" function block should be configured with
the appropriate pointer-based communication blocks. The block
connections, which must be accessed from WinCC, must be connected-
up to the S7DB_P function block using "pointer-based communication
blocks". Function block S7DB_P sets-up a data block for this data. Please
proceed in the following steps:
1. Configure function block S7DB_P. With a righthand mouse click in
connector "XDB", select "Interconnection to operands" and specify the
required DB number.
2. Connect each connector to be visualized (e.g. as in the next diagram:
Connectors "X" and "Y" of the "Integrator" function block) to a
dedicated, pointer-based communication block from the "pointer com"
family of function blocks corresponding to the particular connector
type (e.g.: "DRD" function block for read real variables).
3. Connect connector "PTR" of the S7DB_P to the "PTR" connectors of
all pointer-based communication blocks.
4. Take the data block number (e.g.: DB1) from the sheet bar and the
offset from the pointer-based communication block connectors (OF1 +
OF2) of the CFC configuring, open the address dialog box by pressing
the "Select" button, and then specify the DB number and the offset in
this address dialog box (refer to the next screenshot). Then close the
input window with OK.
Application Module FM 458-1 DP - User Manual
A5E01078222-02 Edition 03.2009