F-Shared Db - Siemens SIMATIC S7 Configuration And Programming Manual
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Also See for SIMATIC S7:
- System manual (866 pages) ,
- Functional safety manual (212 pages) ,
- User manual (134 pages)
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1.2.7
F-Shared DB
F-Shared DB
In addition to the items specified in Section 5.5 of the manual, you can read out the
following in the standard user program or by means of an operator control and
monitoring system:
•
Compile data of the safety program (tag "F_PROG_DAT", data type
DATE_AND_TIME)
Note
Starting with S7 Distributed Safety V5.2, the collective signature of the safety
program (tag "F_PROG_SIG") is output in the F-Shared DB as a double word.
If you used S7 Distributed Safety V 5.1 previously and read out the tag
"F_PROG_SIG" in the safety program or by means of an operator control and
monitoring system, and you are now converting to S7 Distributed Safety
V 5.2 + SP 1, you must change the data type to DWORD for evaluation.
The following can be read out in the safety program in the F-Shared DB:
•
Constants 0 and 1 (tags "RLO0" and "RLO1", data type BOOL)
These tags are accessed fully qualified (for example, "F_GLOBDB".RLO0). The
number and symbolic name of the F-shared DB and the absolute address of the
tags are indicated in the printout of the safety program.
Product Information for the S7 Distributed Safety, Configuring and Programming Manual
A5E00169432-02
39
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