Reading The Diagnostic Information Using Step 5 And Step 7 In The Masters System - Siemens SIMATIC S7-300 Hardware And Installation Manual

Reading Out the Diagnostic Data
The table below shows you how the various DP master system can read diagnostic
information from a slave.
Table 11-10 Reading the diagnostic information using STEP 5 and STEP 7 in the masters system
PLC with DP master
SIMATIC S7/M7
SIMATIC S5 with IM
308-C operating as DP
master
SIMATIC S5 with S5-
95U PLC operating as
DP master
Example of reading slave diagnostic data, using FB192 "IM 308C"
Here you will find an example of how to use FB192 to read out DP slave
diagnostic data in the 192 STEP 5 user program.
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02
Testing functions, Diagnostics and Fault Elimination
Blocks or registers in
STEP 7
"DP slave diagnostics"
register
SFC 13 "DP NRM_DG"
SFC 51 "RDSYSST"
SFB 54 "RALRM"
SFC 59 "RD_REC"
FB 125/FC 125
FB 192 "IM308C"
FB 230 "S_DIAG"
Application
Displaying slave
diagnostic data as plain
text on a STEP 7 user
interface
Reading slave
diagnostic data
(stored in the data area
of the user program)
Reading SSL sublists. In
the diagnostic interrupt,
call SFC 51 with the
system status list ID
W#16#00B4 and read
out the SSL of the slave
CPU.
Reading additional
interrupt information
from a DP slave or a
centralized module from
the relevant OB.
Reading data records of
the S7 diagnosis (stored
in the data area of the
user program)
Evaluating slave
diagnostic data
Reading slave
diagnostic data (stored
in the data area of the
user program)
Further information
Found under the
keyword Hardware
diagnostics in the STEP
7 Online Help and in the
Programming STEP 7
Manual
System and Standard
Functions Reference
Manual
System and Standard
Functions Reference
Manual
System and Standard
Functions Reference
Manual
System and Standard
Functions Reference
Manual
On the Internet URL
http://www.ad.siemens.d
e/simatic-cs, Article ID
387 257
Manual Distributed I/O
System ET 200
11-17