Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Interface module IM 157-1 PN (6ES7157-1AB00-0AB0)
Manual, 12/2016, A5E32347036-AD
31
Reading out the diagnostics data
Table 5- 4 Reading the diagnostics with STEP 7
Automation system
with IO controller
SIMATIC S7 Diagnostics as plain text in STEP 7
in online and diagnostics view
STEP 7 online help
• STEP 7 V13 and higher Function
Manual PROFINET with STEP
7 V13
(
http://support.automation.siemens.
com/WW/view/en/49948856)
• STEP 7 V5.5 and higher System
Manual PROFINET System De-
scription
(
http://support.automation.siemens.
com/WW/view/en/19292127)
"RDREC" instruction (SFB 52)
Reading data records from the IO
"RALRM" instruction (SFB 54)
Receiving alarms from the IO device
Additional information on the data records for PROFINET IO
The structure of the diagnostics data records and programming examples can be found in
the Programming Manual From PROFIBUS DP to PROFINET IO
(http://support.automation.siemens.com/WW/view/en/19289930
) and in the Application
example (http://support.automation.siemens.com/WW/view/en/24000238).
Causes of error and troubleshooting
Causes of errors and corrective measures of diagnostics alarms are described in the device
manuals of the I/O modules (http://support.automation.siemens.com/WW/view/en/89013554
)
in the section Interrupt, Error and System Messages.
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