Generation - Siemens SIMATIC PCS 7 Function Manual

Storage location management
5.1 FB_STOR (FB_STORI, FB_STORR)
and "OP_REC_W" when a storage location is updated. The actual value content (CONT_A
input) is also available as a WinCC tag.
The "ALARM_8P" structure is used to implement data communication with the OS message
system.
5.1.2

Generation

Using the APF Engineering Tool, the following blocks are generated on the basis of the
"FB_STOR" (FB1781) block:
Function block
FB_STORI
FB_STORR
The "FB_STORI" and "FB_STORR" blocks differ in their display of format-related numerical
values for FORMAT= 53, 54 and 70. These values are displayed in the blocks as INTEGER
(32-bit) in FB_STORI and as REAL in FB_STORR. The two blocks write to the same archive
(as DOUBLE 64-bit).
The input and output parameters of the function blocks depend on the structure of the
"FB_STORATTRIB" and "FB_STORVALUE" user archives.
One FB_STORI or FB_STORR is to be used for each storage location in the CFC.
The figure below provides an overview of the "FB_STOR" block structure:
64
Number
(FB)
Specified by the "FB Num‐
ber (I)" field of the APF en‐
gineering tool
Specified by the "FB Num‐
ber (R)" field of the APF
engineering tool
Function
Provides the storage location parameters (attributes)
available in the "FB_STORATTRIB" user archive in the
AS and transfers the actual values in the AS to the
"FB_STORVALUE" user archive
Format of format-related numerical values: INTEGER
(32)
Provides the storage location parameters (attributes)
available in the "FB_STORATTRIB" user archive in the
AS and transfers the actual values in the AS to the
"FB_STORVALUE" user archive
Format of format-related numerical values: REAL
Advanced Process Functions (APF)
Function Manual, 07/2016, A5E38719883-AA