Reading Out Diagnostic Data In The Master System, Using Step 5 And Step 7 - Siemens SIMATIC S7-300 Hardware And Installation Manual

Testing functions, Diagnostics and Fault Elimination
Reading Out the Diagnostic Data
The table below shows you how the various DP master system can read diagnostic
information from a slave.
Table 10-10 Reading out diagnostic data in the master system, using STEP 5 and STEP 7
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.
10-16
Blocks or registers in
STEP 7
"DP slave diagnostics"
register
SFC 13 "DP NRM_DG"
SFC 51 "RDSYSST"
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
(store 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.
Read out data records of
the S7 diagnosis (store
in the data area of the
user program)
Evaluating slave
diagnostic data
Reading slave
diagnostic data (store in
the data area of the user
program)
S7-300 Programmable Controller Hardware and Installation
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
On the Internet URL
http://www.ad.siemens.d
e/simatic-cs, Articel ID
387 257
Manual Distributed I/O
System ET 200
A5E00105492-01