Siemens SIMATIC S7-1500 Manual page 79

Interrupts/diagnostic messages
5.2 Diagnostic alarms
Diagnostic alarms
The display of diagnostics is in plain text in STEP 7 (TIA Portal) in the online and diagnostics
view. You can evaluate the error codes with the user program.
The following diagnostics can be signaled:
Table 5- 5 Diagnostic alarms, their meaning and remedies
Diagnostic alarm
Parameter error
Hardware interrupt lost
Internal error
Watchdog tripped.
Module is defective.
Supply voltage missing 10A
Short-circuit / overload
at external encoder
supply
Error at digital outputs
Supply voltage error
1
78
Error Meaning
code
10 The received parameter data record is
H
invalid
16
Module cannot issue interrupt because
•
H
a preceding interrupt has not yet been
processed
Possible cause: Too many hardware
•
interrupts in too short a time
100 Technology module defective
H
103 Firmware error
H
Technology module defective
Missing or insufficient supply voltage
•
H
L+
Wiring of supply voltage L+ faulty
•
Front connector not inserted correctly
•
10E
Error at encoder supply
•
H
Possible causes:
•
– Short circuit
– Overload
10F
Error at the digital outputs (LED dis-
•
H
play DQn.m lit red)
Possible causes:
•
– Short circuit
– Overload
110
Error at supply voltage L+
•
H
Possible causes:
•
– Low voltage
– Wiring of supply voltage L+ faulty
Remedy
Check parameter data record
Change interrupt processing in the
•
CPU and re-assign technology module
parameters correspondingly
Check frequency of interrupts from the
•
process
Replace technology module
Run firmware update
Replace technology module
Check supply voltage L+
•
Check wiring of supply voltage L+
•
Insert front connector correctly
•
Check encoder wiring
•
Check consumers connected to en-
•
coder supply
Check encoder wiring at the digital
•
outputs
Check consumers connected to the
•
digital outputs
Check supply voltage L+
•
Check wiring of supply voltage L+
•
Technology module TM PosInput 2 (6ES7551-1AB00-0AB0)
Manual, 06/2018, A5E03982218-AB