Diagnostic Alarms - Siemens Simatic S7-1500 Manual

Diagnostic interrupt
Internal sensor supply short-circuit to P
Overload or internal sensor supply short-circuit to ground
Channel failure acknowledgment
F-address memory not accessible
Sensor signal flutters
Frequency too high
Undertemperature
Input shorted to P
Supply voltage too high
Supply voltage too low
6.3

Diagnostic alarms

Diagnostic alarms
Module faults are indicated as diagnostics (module status).
Once the fault is eliminated, the F-module must be reintegrated in the safety program. For
additional information on passivation and reintegration of F-I/O, refer to the SIMATIC Safety
– Configuring and Programming
(http://support.automation.siemens.com/WW/view/en/54110126) manual.
Table 6- 7 Diagnostic alarms of the F-DI 16x24VDC
Diagnostic alarm
Overtemperature
Parameter error
Digital input module F-DI 16x24VDC (6ES7526-1BH00-0AB0)
Manual, 01/2016, A5E03858068-AA
Fault
code
5 An excessively high temperature was
D
measured in the F-module.
16 Parameter errors include:
D
The F-module cannot use the parame-
•
ters (unknown, invalid combination,
etc.).
The F-module parameters have not
•
been configured.
Fault Signaled in
code application
774
D
775
D
779
D
781
D
784 1
D
785
D
786
D
796
D
801
D
802
D
Meaning
Interrupts/diagnostic messages
6.3 Diagnostic alarms
Scope of Configurable
diagnostic
interrupt
Yes
F-module No
Channel Yes
No
F-module
Channel Yes
F-module No
Remedy
Operate the F-module within the
specified temperature range (see
Technical specifications (Page 57))
Once the temperature has been
reduced and returns to the specified
range, the F-module must be re-
moved and inserted or the power
switched OFF and ON.
Correct the parameter assignment.
51