Siemens Simatic S7-1500 Manuel - Page 33

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Siemens Simatic S7-1500 Manuel
Interrupts/diagnostics alarms

5.2 Interrupts

LED CHx
Table 5- 4
CHx status display
LED CHx
Off
On
On
5.2
Interrupts
The digital output module DQ 8x24VDC/2A HF supports diagnostic interrupts and
maintenance interrupts.
You can find detailed information on the error event in the error organization block with the
"RALRM" instruction (read additional interrupt info) and in the STEP 7 online help.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● No supply voltage L+
● Short circuit to ground
● Parameter assignment error
Maintenance interrupt
The module generates a maintenance interrupt at the following events:
● Limit value warning
32
Meaning
0 = Status of the output signal.
1 = Status of the output signal.
Channel parameters assigned (channel fault
pending; a short-circuit to ground is pending at
the respective channel).
Supply voltage L+ too low or missing.
---
---
Check the wiring and remedy the short-circuit
to ground.
Check supply voltage L+.
DQ 8x24VDC/2A HF Digital Output Module (6ES7522-1BF00-0AB0)
Solution
Manual, 06/2018, A5E03485650-AF