Siemens simatic ET 200MP - Errors;Accuracies; Operational Error Limit in Overall Temperature Range

Interrupts and diagnostic, error, and system alarms
5.3 Alarms
IM 155-5 PN HF Interface Module (6ES7155-5AA00-0AC0)
Manual, 10/2018, A5E32840985-AB
41
5.3
Alarms
5.3.1
Diagnostic alarms
Actions after a diagnostic alarm
There can be more than one diagnostic alarm at the same time. Each diagnostic alarm
initiates the following actions:
● The ERROR LED of the interface module flashes.
● Diagnostics are reported as diagnostic interrupts to the CPU of the IO controller and can
be read via data records.
● Incoming diagnostic alarms are saved to the diagnostic buffer of the IO controller.
● The diagnostic interrupt OB is called. If the diagnostic interrupt OB is not available, the IO
controller goes into STOP mode.
You can find additional information in the STEP 7 online help.
Reading out the diagnostics
Table 5- 3 Reading out the diagnostics with STEP 7
Automation system with IO
controller
Application
See...
SIMATIC S7 Diagnostics as plain text in
STEP 7 using online view and
diagnostic view
Online help of STEP 7 and
• As of STEP 7 V12
PROFINET with STEP 7
V12 function manual
(http://support.automation.si
emens.com/WW/view/en/49
948856)
• As of STEP 7 V5.5
PROFINET System Descrip-
tion
(http://support.automation.si
emens.com/WW/view/en/19
292127) manual.
Instruction "RDREC"
Read data records from the IO
device
Instruction "RALRM"
Receive interrupts from the IO
device
Additional information on the data records for PROFINET IO
You can find the structure of the diagnostic data records and programming examples in the
programming manual From PROFIBUS DP to PROFINET IO
(http://support.automation.siemens.com/WW/view/en/19289930) and in the application
example on the Internet (http://support.automation.siemens.com/WW/view/en/24000238).