Technical data
Contents
Programming with STEP 7
20 Manual, 05/2010, A5E02789666-01
23.9.1 Evaluating the Output Parameter RET_VAL ........................................................................502
23.9.2 Error OBs as a Reaction to Detected Errors.........................................................................503
23.9.3 Inserting Substitute Values for Error Detection.....................................................................508
23.9.4 I/O Redundancy Error (OB70) ..............................................................................................510
23.9.5 CPU Redundancy Error (OB72)............................................................................................511
23.9.6 Time Error (OB80) ................................................................................................................512
23.9.7 Power Supply Error (OB81) ..................................................................................................513
23.9.8 Diagnostic Interrupt (OB82) ..................................................................................................514
23.9.9 Insert/Remove Module Interrupt (OB83)...............................................................................515
23.9.10 CPU Hardware Fault (OB84) ................................................................................................516
23.9.11 Program Sequence Error (OB85) .........................................................................................516
23.9.12 Rack Failure (OB86) .............................................................................................................517
23.9.13 Communication Error (OB87) ...............................................................................................517
23.9.14 Programming Error (OB121).................................................................................................518
23.9.15 I/O Access Error (OB122).....................................................................................................518
23.10 System Diagnostics with 'Report System Error'....................................................................519
23.10.1 Graphical Output of Diagnostic Events.................................................................................519
23.10.2 Diagnostic Status ..................................................................................................................519
23.10.2.1 Overview of the Diagnostic Status........................................................................................519
23.10.2.2 PROFIBUS Diagnostic Status...............................................................................................519
23.10.2.3 Example of a DB 125 with a DP Slave .................................................................................523
23.10.2.4 Example of a Request for the PROFIBUS DP DB................................................................523
23.10.2.5 PROFINET Diagnostic Status...............................................................................................525
23.10.2.6 Example of a DB126 with an IO System 100 and Devices with Device Numbers 2, 3
and 4 .....................................................................................................................................528
23.10.2.7 Example of a Request for the PROFINET IO DB .................................................................529
23.10.2.8 Diagnostic Status DB............................................................................................................530
23.10.2.9 Example of a Diagnostic Status DB Query...........................................................................533
23.10.2.10 Importing Error and Help Texts.............................................................................................536
24 Printing and Archiving............................................................................................................................539
24.1 Printing Project Documentation ............................................................................................539
24.1.1 Basic Procedure when Printing.............................................................................................540
24.1.2 Print Functions ......................................................................................................................540
24.1.3 Special Note on Printing the Object Tree .............................................................................541
24.2 Archiving Projects and Libraries ...........................................................................................542
24.2.1 Uses for Saving/Archiving.....................................................................................................543
24.2.2 Requirements for Archiving...................................................................................................544
24.2.3 Procedure for Archiving/Retrieving .......................................................................................544
25 Working with M7 Programmable Control Systems..............................................................................545
25.1 Procedure for M7 Systems ...................................................................................................545
25.2 Optional Software for M7 Programming ...............................................................................547
25.3 M7-300/M7-400 Operating Systems.....................................................................................549